Power supply device for storing electric energy by using surplus power and control method thereof

Abstract

A power supply device is disclosed. This power supply device comprises: a commercial power source for supplying electrical energy; a battery for accumulating the electrical energy; an output unit; a first power control unit for storing the electrical energy received through the commercial power source in the battery; a second power control unit for supplying the electrical energy stored in the battery to the output unit; a third power control unit for supplying the electrical energy received through the commercial power source to the output unit; and a control unit, wherein the control unit controls the first power control unit and the third power control unit to be turned on and the second power control unit to be turned off when demand power is less than first power, and controls the first power control unit and the third power control unit to be turned off and the second power control unit to be turned on when the demand power is equal to or greater than the first power.

Description

Power supply device for storing electric energy using surplus power and control method thereof

[0001] The present disclosure relates to a power supply device that stores electric energy using surplus power and a control method thereof, and more particularly, to a power supply device that stores electric energy using surplus power and supplies electric power using the stored electric energy, and a control method thereof, for stable power supply and improved energy efficiency.

[0002] Power companies prepare generation capacity to meet peak demand. Typically, they do this during periods when heating and cooling equipment is heavily used, such as summer and winter, and operate reserve power accordingly.

[0003] Power plants include hydroelectric, thermal, wind, and nuclear power plants. However, nuclear power, in particular, struggles to adjust its output across time zones. Furthermore, reserve power must be secured accordingly. While power generation is responsive to demand, when demand is insufficient, reserve power is secured through forced shutdowns of high-power users or through temperature adjustments in government offices. Consequently, power companies often utilize pumped storage power at night, when consumer demand (residential, commercial, industrial, etc.) is low, resulting in a surplus of power.

[0004] In other words, the current power load is constantly changing, reflecting factors such as people's lifestyles, production activities, and weather conditions. Peak power refers to the highest power load over a year, a day, or a specific period. The more power loads consumed simultaneously by households, factories, or other electricity-using locations, the higher the power company's peak power.

[0005] Because electricity demand varies significantly between day and night and between seasons, power companies operate reserve power to balance loads. When power demand exceeds peak demand, power outages, outages, or other power quality degradations occur. Therefore, companies strive to reduce or disperse peak demand, or to bridge the gap between peak and average demand. To respond immediately to these peak demand events, reserve power is necessary. To mitigate this, wind and solar energy have recently been promoted for homes and industrial sites.

[0006] Climate change is accelerating due to increasing carbon emissions. To address this climate change, methods to eliminate fossil fuels are being discussed. Globally, fossil fuel-based power generation remains essential. To reduce fossil fuel use, the "commercial surplus power" method aims to lower average power generation by more efficiently managing surplus power in existing power generation.

[0007] Aside from generating electricity from natural energy sources, as described above, there is no way to reduce fossil fuel-based power generation. Furthermore, electricity cannot be stored unless it is stored in a storage device. Currently, the only way to sell electricity through the power grid is to use the generated electricity in real time. Only power generated from eco-friendly sources can be supplied immediately when needed. Furthermore, it is difficult to match generated electricity to demand without conducting as accurate a demand survey as possible to reduce average power consumption.

[0008] In this regard, while there are currently methods for transmitting electricity generated through solar and wind power to power companies, it would be extremely difficult to address complex grid issues and adapt to different time zones. Furthermore, the distribution of electricity generated from natural sources varies across regions, making it practically impossible to immediately supply this much needed power. Furthermore, electricity generated from natural sources is sensitive to climate change, making power generation unstable.

[0009] The present disclosure aims to provide a power supply device that stores electric energy using surplus power and a control method thereof to ensure stable power supply and improve energy efficiency.

[0010] The present disclosure aims to provide a power supply device and an operating method thereof that perform power storage and power control to minimize power loss due to unused surplus power.

[0011] The problems to be solved by the present disclosure are not limited to the problems described above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

[0012] A power supply device according to one embodiment of the present disclosure may include a commercial power source for supplying electric energy, a battery for accumulating electric energy, an output unit, a first power control unit for storing electric energy received through the commercial power source in the battery, a second power control unit for supplying electric energy stored in the battery to the output unit, a third power control unit for supplying electric energy received through the commercial power source to the output unit, and a control unit.

[0013] According to one embodiment, the control unit may control the first power control unit and the third power control unit to be turned on, and the second power control unit to be turned off, when the demand power is less than the first power.

[0014] According to one embodiment, the control unit can control the first power control unit and the third power control unit to be turned off, and the second power control unit to be turned on, when the demand power according to one embodiment is greater than or equal to the first power.

[0015] In accordance with one embodiment of the present disclosure, a method for operating a power supply device including a commercial power source for supplying electric energy, a battery for accumulating electric energy, an output unit, a first power control unit for storing electric energy received through the commercial power source in the battery, a second power control unit for supplying electric energy stored in the battery to the output unit, a third power control unit for supplying electric energy received through the commercial power source to the output unit, and a control unit, the method may include a step of controlling the first power control unit and the third power control unit to be turned on and controlling the second power control unit to be turned off when the demand power is less than the first power.

[0016] The above operating method may include a step of controlling the first power control unit and the third power control unit to be turned off, and controlling the second power control unit to be turned on, when the demand power is greater than or equal to the first power.

[0017] In a storage medium storing computer-readable instructions according to one embodiment of the present disclosure, the instructions, when executed by a control unit of a power supply device including a commercial power source for supplying electrical energy, a battery for accumulating electrical energy, an output unit, a first power control unit for storing electrical energy received through the commercial power source in the battery, a second power control unit for supplying electrical energy stored in the battery to the output unit, a third power control unit for supplying electrical energy received through the commercial power source to the output unit, and a control unit, can cause the power supply device to control the first power control unit and the third power control unit to be turned on and to control the second power control unit to be turned off when the demand power is less than the first power.

[0018] According to one embodiment, the control method may cause the first power control unit and the third power control unit to be turned off and the second power control unit to be turned on when the demand power is greater than or equal to the first power.

[0019] Power companies find it difficult to respond to sudden increases or decreases in power production. Therefore, managing and controlling peak demand power is a way to reduce average power consumption.

[0020] Electric power companies charge different rates depending on the season, and due to varying power loads at different times of the day, they often lose a lot of power. According to this study, power companies can store this lost power and supply it to consumers at lower costs. This allows them to distribute power when demand exceeds peak demand, reducing average power consumption. This eliminates unnecessary costs, such as building new power plants for power generation. This saves energy and reduces carbon emissions.

[0021] Power companies can sell surplus electricity, and consumers can purchase it at relatively low prices. This allows power companies to reduce costs, conserve energy, and reduce carbon emissions.

[0022] As the use of eco-friendly energy increases, commercial power consumption will gradually decrease. Consequently, the portion of commercial power that is charged when peak demand is below the peak demand, as commercial surplus power increases, may reduce commercial power consumption. Furthermore, since the installed system only connects to eco-friendly power lines, it has the advantage of storing and utilizing surplus power. This means no separate facilities are required.

[0023] Figure 1 is a block diagram of a power supply device according to one embodiment.

[0024] Figure 2 is a block diagram of a power supply device according to one embodiment.

[0025] Figure 3 is a block diagram of a power supply device according to one embodiment.

[0026] Figure 4 is a block diagram of a power supply device according to one embodiment.

[0027] Figure 5 is a block diagram of a power supply device according to one embodiment.

[0028] FIG. 6 is a block diagram of a portion that uses commercial surplus power according to one embodiment.

[0029] Figures 7a, 7b and 7c are diagrams of a method for controlling a power supply device through multiple managers.

[0030] FIG. 8 is a drawing for explaining a power supply device using natural energy according to one embodiment.

[0031] FIG. 9 is a drawing for explaining a power supply device using natural energy according to one embodiment.

[0032] FIG. 10 is a drawing for explaining a power supply device including an inverter system according to one embodiment.

[0033] Figures 11a, 11b and 11c are drawings for explaining a solar power generation system.

[0034] FIG. 12 is a diagram illustrating a method for storing surplus power by utilizing eco-friendly energy according to one embodiment.

[0035] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the contents described in the attached drawings. However, the present invention is not limited or restricted by the exemplary embodiments. Unless otherwise defined, all terms (including technical and scientific terms) used in this specification shall be used with meanings that can be commonly understood by those of ordinary skill in the technical field to which this disclosure pertains. However, this may vary depending on the intentions of those skilled in the art, precedents, the emergence of new technologies, etc.

[0036] Additionally, terms defined in commonly used dictionaries should not be interpreted ideally or excessively unless explicitly and specifically defined otherwise. In certain cases, terms may be arbitrarily selected by the applicant, in which case their meanings will be described in detail in the relevant description. Therefore, the terms used in this disclosure should be defined based on their meaning and the overall content of this disclosure, rather than simply their names.

[0037] Throughout this specification, when a part is said to “include” a certain component, this does not mean that other components may be included, but rather that other components may be excluded, unless specifically stated otherwise. Furthermore, the singular forms used herein also include plural forms unless specifically stated otherwise. Furthermore, the expression “at least one of a, b, and / or c” described throughout this specification can encompass “a alone,” “b alone,” “c alone,” “a and b,” “a and c,” “b and c,” or “all of a, b, and c.”

[0038] Meanwhile, terms such as "first and / or second" used herein may be used to describe various components, but are only used to distinguish one component from another and are not intended to limit the components referred to by such terms. For example, within the scope of the present invention, the first component may be referred to as the second component, and the second component may also be referred to as the first component.

[0039] In addition, terms such as “unit”, “module”, etc. described in this specification mean a unit that processes at least one function or operation, which may be implemented by hardware or software, or a combination of hardware and software. In addition, embodiments of the present disclosure in this specification may be represented by functional block configurations and various processing steps. These functional blocks may be implemented by various numbers of hardware or / and software configurations that execute specific functions. For example, embodiments of the present disclosure may employ direct circuit configurations such as memory, processing, logic, look-up tables, etc. that may execute various functions under the control of one or more microprocessors or other control devices.

[0040] Hereinafter, various embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In describing the embodiments, descriptions of technical details that are well known in the technical field to which the present invention pertains and are not directly related to the present invention will be omitted. This is to convey the gist of the present invention more clearly without obscuring unnecessary explanation. For the same reason, some components in the accompanying drawings are exaggerated, omitted, or schematically depicted. Furthermore, the size of each component does not entirely reflect the actual size. Throughout this specification, the same reference numerals may refer to the same or corresponding components.

[0041] Figure 1 is a block diagram of a power supply device according to one embodiment.

[0042] According to FIG. 1, a power supply device (100) according to one embodiment may include a commercial power source (110), a battery (120), an output unit (130), a first power control unit (140), a second power control unit (150), a third power control unit (160), and a control unit (170).

[0043] A commercial power source (110) according to one embodiment can supply electric energy. In one embodiment, the commercial power source (110) can supply electric energy to a battery (120) through a first power control unit (140). In one embodiment, the commercial power source (110) can also supply electric energy to an output unit (130) through a third power control unit (160). In one embodiment, the commercial power source (110) can supply AC (Alternating Current) power, but is not limited thereto, and in one embodiment, the commercial power source (110) can of course also supply DC (direct current) power. However, in the case of FIG. 1, it is described that the commercial power source (110) supplies electric energy as AC (Alternating Current) power.

[0044] According to one embodiment, the battery (120) may be a device that stores supplied electric energy. According to one embodiment, the battery (120) may be a battery (120) pack including a single battery (120) or multiple batteries (120). Alternatively, the battery (120) may be a device that can store electric energy, such as an energy storage system (ESS) capable of storing a large amount of energy.

[0045] According to one embodiment, the output unit (130) may be a device that outputs electric energy received through the second power control unit (150) or the third power control unit (160). According to one embodiment, the output unit (130) may supply electric energy to a device corresponding to a consumer (residential, commercial, industrial, etc.). According to one embodiment, when the commercial power source (110) supplies AC alternating current power, the output unit (130) may also supply AC alternating current power to a device corresponding to a consumer.

[0046] According to one embodiment, the first power control unit (140) may store electric energy received through the commercial power source (110) in the battery (120). In one embodiment, the first power control unit (140) may be turned on when the demand power is less than the first power (e.g., maximum demand power), and the first power control unit (140) may store the electric energy in the battery (120). Here, the demand power refers to the power consumption corresponding to the consumer (residential, commercial, industrial, etc.). The power consumption may be an average power calculated over a specified period, but is not limited thereto.

[0047] According to one embodiment, the second power control unit (150) can supply electric energy stored in the battery (120) to the output unit (130). In one embodiment, the second power control unit (150) can be turned off when the demand power is less than the first power. In one embodiment, the second power control unit (150) can be turned on when the demand power is greater than or equal to the first power, and the second power control unit (150) can supply the electric energy stored in the battery (120) to the output unit (130).

[0048] According to one embodiment, the third power control unit (160) may supply electric energy received through the commercial power source (110) to the output unit (130). In one embodiment, the third power control unit (160) may be turned on when the voltage corresponding to the battery (120) is lower than or equal to the reference voltage. In one embodiment, the third power control unit (160) may be turned on when it is determined that the demand power is higher than or equal to the first power and the voltage corresponding to the battery (120) is lower than or equal to the reference voltage. According to one embodiment, information about the reference voltage may be stored (e.g., in a memory) in the power supply device (100).

[0049] According to one embodiment, the control unit (170) may be implemented with one or more processors. According to one embodiment, the control unit (170) may be implemented with a digital signal processor (DSP) for processing a digital image signal, a microprocessor, a time controller (TCON). However, the control unit (170) is not limited thereto, and may include one or more of a central processing unit (CPU), a micro controller unit (MCU), a micro processing unit (MPU), a controller, an application processor (AP), a communication processor (CP), an ARM processor, or may be defined by the corresponding terminology. In addition, the control unit (170) may be implemented with a system on chip (SoC) having a built-in processing algorithm, a large scale integration (LSI), or may be implemented in the form of an application specific integrated circuit (ASIC), or a field programmable gate array (FPGA).

[0050] According to one embodiment, the control unit (170) may control the first power control unit (140) and the third power control unit (160) to be turned on and the second power control unit (150) to be turned off when the demand power is less than the first power. For example, when the control unit (170) determines that the demand power is less than the first power (e.g., maximum demand power), the control unit (170) may transmit a control signal to each device to turn on the first power control unit (140) and the third power control unit (160) and to turn off the second power control unit (150). Accordingly, when the current demand power is less than the maximum demand power, surplus power excluding the demand power among the power supplied from the commercial power source (110) may be stored in the battery (120). In one embodiment, the surplus power may be the difference between the sum of the maximum demand power and the reserve power and the value of the actual power consumed.

[0051] According to one embodiment, when the demand power is equal to or greater than the first power, the control unit (170) may control the first power control unit (140) and the third power control unit (160) to be turned off, and the second power control unit (150) to be turned on. For example, when the control unit (170) determines that the demand power is equal to or greater than the first power (e.g., maximum demand power), the first power control unit (140) and the third power control unit (160) may transmit a control signal to turn off, and the second power control unit (150) may transmit a control signal to turn on. Accordingly, when the current demand power is equal to or greater than the maximum demand power, the power supply device (100) may supply electric energy stored in the battery (120) to a device corresponding to a consumer through the output unit (130).

[0052] According to one embodiment, the control unit (170) may control the third power control unit (160) to be turned on when it is determined that the demand power is greater than or equal to the first power and the voltage corresponding to the battery (120) is less than or equal to the reference voltage. For example, when the demand power is greater than or equal to the maximum demand power and the voltage corresponding to the battery (120) is less than or equal to the reference voltage (e.g., when the power stored in the battery (120) is low), the control unit (170) may transmit a control signal to the third power control unit (160) to turn on the third power control unit (160). Accordingly, electric energy supplied through the commercial power source (110) may be supplied to the consumer through the output unit (130).

[0053] According to one embodiment, at least one of the first power control unit (140), the second power control unit (150), and the third power control unit (160) may be a device capable of turning on / off an AC voltage, such as a relay, a triode for alternating current (TRIAC), or a selective catalytic reduction (SCR). In one embodiment, at least one of the first power control unit (140), the second power control unit (150), and the third power control unit (160) may also turn on / off a DC voltage, and may be implemented as, for example, one of a relay, a unidirectional triode for alternating current (TRIAC), a FET, and a TR.

[0054] Figure 2 is a block diagram of a power supply device according to one embodiment.

[0055] Referring to FIG. 2, a power supply device (200) according to one embodiment may include a commercial power source (210) (e.g., a commercial power source (110) of FIG. 1), a battery (220) (e.g., a battery (120) of FIG. 1), an output unit (230) (e.g., an output unit (130) of FIG. 1), a first power control unit (240) (e.g., a first power control unit (140) of FIG. 1), a second power control unit (250) (e.g., a second power control unit (150) of FIG. 1), a third power control unit (260) (e.g., a third power control unit (160) of FIG. 1), and a control unit (270) (e.g., a control unit (170) of FIG. 1), a transmission unit (280), a charging unit (290), an AC inverter (295), a first power meter (296), a metering unit (297), and a second power meter (298). There is. Descriptions of configurations and contents that overlap with those of Fig. 1 will be omitted.

[0056] In one embodiment, the commercial power source (210) can supply AC alternating current power.

[0057] According to one embodiment, the transmission unit (280) can control the turning on / off of the first power control unit (240) and the third power control unit (260) by the control unit (270). In one embodiment, the transmission unit (280) can transmit a control signal received from the control unit (270). In one embodiment, the transmission unit (280) can be an insulated medium such as a photocoupler. When the transmission unit (280) is implemented in a non-insulated structure, the control signal can be transmitted directly from the control unit (270) without going through the transmission unit (280).

[0058] In one embodiment, the charging unit (290) may store the electric energy received through the first power control unit (240) in the battery (220). In one embodiment, the charging unit (290) may store the electric energy received through the first power control unit (240) in the battery (220) when the demand power is less than the first power (e.g., the maximum demand power).

[0059] In one embodiment, the AC inverter (295) can convert the electric energy stored in the battery (220). In one embodiment, the AC inverter (295) can convert the electric energy stored in the battery (220) into AC alternating current type energy. In one embodiment, the AC inverter can convert the electric energy stored in the battery into AC power and supply it to the second power control unit. In one embodiment, the AC inverter (295) may be a grid-tied inverter, but since the current grid-tied inverter has an automatic conversion function when the battery (220) is fully charged, a separate grid-tied inverter may be configured. That is, the control of the present system is based on the principle of accumulating surplus power in the battery (220) when the maximum demand power is lower than or equal to the maximum demand power, and using it for power management when the maximum demand power is higher than the maximum demand power, and the manager is managed by the power company or a manager capable of managing power. In one embodiment, when the AC inverter (295) is a grid-connected inverter, the second power control unit (250) and the third power control unit (260) may be included in the AC inverter (295).

[0060] However, this is not limited to this, and in one embodiment, a small business or operator may contract with a power company to receive electricity during a time period when the cost is relatively low, store the electricity, and then use it when the power is higher than the first power.

[0061] In one embodiment, the meter reading unit (297) may measure the amount of power used in commercial surplus power or the amount of power used in commercial power. In one embodiment, the meter reading unit (297) may be built into a meter.

[0062] In one embodiment, the first power meter may be a power meter that is currently in general use.

[0063] According to one embodiment, the second power meter (or surplus power meter) may be a power meter that can check the usage through the first power control unit (240) by a control signal received from the control unit (270) when the usage is below the maximum demand power corresponding to the power company.

[0064] Although not illustrated in FIG. 2, the power supply device may include a communication unit according to one embodiment. For example, the communication unit may transmit and receive information with an external device using at least one of Wi-Fi (Wireless Fidelity) technology, LoRa (Long-Range) communication technology, or BLE (Bluetooth-Low-Energy) communication technology. For example, the external device may be a user terminal, but is not limited thereto. For example, the external device may be a server (e.g., a server corresponding to an external management system). Alternatively, the external device may be a server corresponding to a manager or a user terminal. For example, the control unit (270) may use the communication unit to check the maximum power demand currently consumed through wired / wireless communication with a power company, and control power when there is power surplus. In addition, power companies may be managed by different power companies. In addition, power users may directly set the usage time. In one embodiment, charging may be performed by a power company manager. In one embodiment, the control unit may obtain information about the first power supply from an external device via the communication unit. For example, the external device may be a server corresponding to a power company.

[0065] Meanwhile, even if not explicitly mentioned in the drawings described below including FIG. 1, it goes without saying that the power supply device according to one embodiment may include the above-described communication unit.

[0066] In one embodiment, when DC power is supplied from a commercial power source (210), an AC inverter (295) may be included between the third power control unit (260) and the commercial power source. In one embodiment, the power supply device (200) may include an AC (alternating current) inverter (295) that converts electric energy received through the commercial power source (210) into AC power and supplies it to the third power control unit (260).

[0067] According to one embodiment, the control unit (270) may transmit a control signal to the first power control unit (240), the second power control unit (250), and the third power control unit (260) through the transmission unit (280) to control the first power control unit (240) and the third power control unit (260) to be turned on and the second power control unit (250) to be turned off when the demand power is less than the first power.

[0068] According to one embodiment, the control unit (270) can transmit a control signal to the first power control unit (240), the second power control unit (250), and the third power control unit (260) through the transmission unit (280) to control the first power control unit (240) and the third power control unit (260) to be turned off and the second power control unit (250) to be turned on when the demand power is greater than or equal to the first power.

[0069] According to one embodiment, the output unit (230) may output AC power received from at least one of the second power control unit (250) and the third power control unit (260). In one embodiment, the output unit (230) may output AC power received from the second power control unit (250). Alternatively, the output unit (230) may output AC power received from the third power control unit (260).

[0070] In one embodiment, when the output unit (230) is used as a DC direct current, the battery (220) voltage may be used as is, or a power supply unit (Switching Mode Power Supply) capable of stepping up or stepping down may be included between the battery and the second power control unit (250). In addition, a power supply unit (Switching Mode Power Supply) capable of stepping up or stepping down may be included between the commercial power source and the third power control unit (260).

[0071] According to one embodiment, when the commercial power source is DC direct current, the first power control unit (240) may include a charging device capable of charging the battery (220). In addition, when the output unit (230) is used as DC direct current, the battery (220) voltage may be used as is, or the second power control unit (250) may include a power supply unit (Switching Mode Power Supply) capable of boosting or lowering the voltage. In addition, the third power control unit (260) may include a power supply unit (Switching Mode Power Supply) capable of boosting or lowering the voltage.

[0072] In one embodiment, the output unit (230) may include a load device. For example, the output unit (230) may be implemented as a load device, and for example, the output unit (230) may be implemented as a plurality of load devices.

[0073] Figure 3 is a block diagram of a power supply device according to one embodiment.

[0074] Figure 3 is a diagram showing a method of transmitting electric energy to an output section through a PFC section using a commercial power source when the demand power is less than the maximum demand power, and transmitting electric energy to an output section through a boosted voltage through a second power control section when the demand power is greater than the maximum demand power.

[0075] According to FIG. 3, a power supply device (300) according to one embodiment includes a commercial power source (310) (e.g., a commercial power source (110) of FIG. 1), a battery (320) (e.g., a battery (120) of FIG. 1), an output unit (330) (e.g., an output unit (130) of FIG. 1), a first power control unit (340) (e.g., the first power control unit (140) of FIG. 1), a second power control unit (350) (e.g., the second power control unit (150) of FIG. 1), a third power control unit (360) (e.g., the third power control unit (160) of FIG. 1), and a control unit (370) (e.g., the control unit (170) of FIG. 1), a transmission unit (380), a charging unit (390), a boost unit (395), a first power meter (396), a metering unit (397), a second power meter (398), and It may include a PFC (power factor correction) unit (399). Descriptions of configurations and contents that overlap with those of FIGS. 1 and 2 will be omitted.

[0076] In one embodiment, the output unit (330) can output a DC voltage. In one embodiment, it can have a non-insulated structure.

[0077] In one embodiment, the power supply device (300) may include a booster (395) that boosts the electric energy stored in the battery (320) and supplies it to the second power control device (350). In one embodiment, the booster (395) may boost the energy stored in the battery (320). In one embodiment, the power supply device (300) may also lower the voltage of the battery (320) when the voltage of the battery (320) is relatively high.

[0078] In one embodiment, the power supply device (300) may further include a power factor correction (PFC) unit that converts electric energy received from a commercial power source (310) into direct current power and supplies the converted electric energy to a third power control unit (360). In one embodiment, the PFC unit may be a converter that receives AC commercial voltage and converts it into DC. In one embodiment, the PFC unit may be a boost unit (395) that includes a power factor circuit, as a large amount of reactive power may be generated in the AC commercial power input unit if there is no power factor circuit.

[0079] In one embodiment, the PFC voltage and the boosted voltage may be boosted voltages. Using the boosted voltage reduces the current used in the output section (330), and the power line can transmit electrical energy using a thinner wire. This may be suitable for long transmission distances.

[0080] In one embodiment, when the demand power is less than the first power (e.g., the maximum demand power), the control unit (370) may operate the PFC unit through the transmission unit (380) and turn on the third power control unit (360) to send power to the output unit (330). In one embodiment, the transmission unit (380) may be unnecessary because the entire system has a non-insulated structure, and the control unit (370) may directly control the signal. In one embodiment, when the demand power is less than the maximum demand power, the control unit (370) may turn on the first power control unit (340) to store electric energy in the battery (320) through the charging unit (390). In one embodiment, the second power control unit (350) may be maintained in a turned-off state so that the electric energy supplied to the output unit (330) may be cut off. In one embodiment, the power supply device (300) can supply power to the output unit (330) through the third power control unit (360) when the demand power is less than the maximum demand power.

[0081] In one embodiment, when the demand power is greater than the maximum demand power, the control unit (370) can turn off the third power control unit (360) and the PFC unit to block the commercial power from being directly applied to the output unit (330). In addition, the control unit (370) can turn on the second power control unit (350) to transmit the boosted voltage through the battery (320) to the output unit (330). At this time, the first power control unit (340) can turn off to block the storage of electric energy in the battery (320) through the charging unit (390). In one embodiment, when it is confirmed that the voltage corresponding to the battery (320) is lower than or equal to a specified reference voltage, the control unit (370) can supply power to the output unit (330) through the third power control unit (360).

[0082] Although not illustrated in FIG. 3, the power supply device (300) may include a communication unit according to one embodiment. For example, the communication unit may transmit and receive information with an external device using at least one of Wi-Fi (Wireless Fidelity) technology, LoRa (Long-Range) communication technology, or BLE (Bluetooth-Low-Energy) communication technology. For example, the external device may be a user terminal, but is not limited thereto. For example, the external device may be a server (e.g., a server corresponding to an external management system). Alternatively, the external device may be a server corresponding to a manager or a user terminal. For example, the control unit (370) may use the communication unit to check the maximum power demand currently consumed through wired / wireless communication with a power company, and control power when there is power surplus. In addition, power companies may be managed by different power companies. In addition, power users may directly set the usage time. In one embodiment, charging may be performed by a power company manager.

[0083] In one embodiment, the control unit (370) may operate the PFC unit so that direct current power is supplied to the third power control unit (360) when the demand power is less than the first power. In one embodiment, the control unit (370) may control the boost unit (395) so that the boosted electric energy is supplied to the second power control unit (350) when the demand power is greater than or equal to the first power.

[0084] In one embodiment, the control unit (370) may control the third power control unit (360) to be turned off after the second power control unit (350) is turned on when the demand power is greater than or equal to the first power and the voltage corresponding to the boost unit (395) is less than the voltage corresponding to the PFC unit. In one embodiment, the control unit (370) may control the second power control unit (350) to be turned off after the third power control unit (360) is turned on when the demand power is less than the first power and the voltage corresponding to the boost unit (395) is less than the voltage corresponding to the PFC unit. According to one embodiment, it is assumed that the output unit (330) is used as a DC voltage. In one embodiment, when using the maximum demand power, if the Boosted DC voltage is designed to be lower than the PFC voltage, the second power control unit (350) is first turned on due to the potential difference to send the DC voltage to the output unit (330) and then the third power control unit (360) is turned off, a power cut-off phenomenon may not occur due to the potential difference. In one embodiment, when the maximum demand power is lower than the third power control unit (360) and the second power control unit (350) is turned on and then turned off, a power cut-off phenomenon does not occur in the output unit (330) due to the potential difference. In the opposite case, if the second power control unit (350) and the third power control unit (360) set one of the PFC voltage and the Boost voltage to a higher voltage due to the potential difference and output this voltage first and then block the voltage to be turned off, the voltage cut-off phenomenon may also not occur in the same way.

[0085] In one embodiment, the third power control unit (360) may be implemented as a diode and may be maintained in a continuously turned-on state. In one embodiment, the control unit (370) may control the boost unit (395) and the PFC unit so that the voltage corresponding to the boost unit (395) exceeds the voltage corresponding to the PFC unit. As described above, the third power control unit (360) may be constantly turned on using a forward semiconductor such as a diode. At this time, the boosted DC voltage must be output higher than the PFC-ized DC voltage through the commercial voltage, and electric energy may flow through the stored energy when the second power control unit (350) is turned on due to the potential difference. In one embodiment, the third power control unit (360) may be constantly turned on using a semiconductor such as a diode without using the second power control unit (350) as described above. However, in one embodiment, the opposite concept may be the same.

[0086] In one embodiment, the second power control unit (350) may be implemented as a diode and may be maintained in a continuously turned-on state. In one embodiment, the control unit (370) may control the boost unit (395) and the PFC unit so that the voltage corresponding to the boost unit (395) is lower than the voltage corresponding to the PFC unit.

[0087] In one embodiment, when the power capacity is small, an electrolytic capacitor or a super capacitor can be used at the output section (330) where the second power control section (350) and the third power control section (360) meet. However, when the power capacity is large, the best method would be to use a potential difference. In addition, in the case of an electrolytic capacitor, its lifespan may be shortened due to its capacitive nature.

[0088] In one embodiment, unlike the method of sending AC commercial power (310) to the output unit (330), the DC commercial power (310) can be easily configured.

[0089] In one embodiment, the power supply device (300) may be turned on constantly without using the second power control unit (350) and the third power control unit (360) when utilizing a potential difference.

[0090] In one embodiment, the power supply device (300) has a DC output, so when the battery (320) voltage is high, a booster (395) for boosting is not required, which reduces the cost and allows for a simpler circuit configuration.

[0091] In one embodiment, when the commercial power source (310) is DC power, a PFC unit for converting AC to DC may not be required.

[0092] According to one embodiment, the commercial power source (310) may supply DC (direct current) power. In one embodiment, the power supply device (300) may not include a PFC unit when the commercial power source (310) is implemented as a DC power source. In one embodiment, the control unit (370) may control the third power control unit (370) to supply the DC power received through the commercial power source to the output unit (330) when the demand power is less than the first power, and may control the boost unit (395) to supply the boosted electric energy to the second power control unit (370) when the demand power is greater than or equal to the first power.

[0093] In one embodiment, the power supply device (300) may not include a booster (395). In one embodiment, the control unit (370) controls the third power control unit (370) to supply direct current power received through a commercial power source to the output unit (330) when the demand power is less than the first power, and controls the second power control unit (370) to supply electric energy stored in the battery when the demand power is greater than or equal to the first power.

[0094] In one embodiment, the commercial power source (310) is advantageous in that it is easy to store power by eliminating the need for an unnecessary AC conversion inverter due to the increased generation of power through natural energy, and a system with a storage device that can be controlled by the power company is advantageous. In addition, the DC commercial power system can be easily installed by small-scale businesses or individuals, allowing for the construction of a power system that can control power usage at any time.

[0095] Figure 4 is a block diagram of a power supply device according to one embodiment.

[0096] According to FIG. 4, a power supply device (400) according to one embodiment includes a commercial power source (410, e.g., the commercial power source (110) of FIG. 1), a battery (420) (e.g., the battery (120) of FIG. 1), an output unit (430) (e.g., the output unit (130) of FIG. 1), a first power control unit (440) (e.g., the first power control unit (140) of FIG. 1), a second power control unit (450) (e.g., the second power control unit (150) of FIG. 1), a third power control unit (460) (e.g., the third power control unit (160) of FIG. 1), and a control unit (470) (e.g., the control unit (170) of FIG. 1), a transmission unit (480, e.g., the transmission unit (380) of FIG. 3), a charging unit (490, e.g., the charging unit (390) of FIG. 3), a boost unit (495, e.g., FIG. It may include a step-up unit (395) of 3), a first power meter (496, e.g., the first power meter (396) of FIG. 3), a meter reading unit (497, e.g., the meter reading unit (397) of FIG. 3), a second power meter (498, e.g., the second power meter (398) of FIG. 3), and a PFC (power factor correction) unit (499, e.g., the PFC unit (399) of FIG. 3). Descriptions of configurations and contents overlapping with those of FIG. 3 will be omitted.

[0097] According to one embodiment, the output unit (430) illustrated in FIG. 4, unlike the output unit (330) of FIG. 3, outputs a DC voltage and may be of an insulated structure.

[0098] According to one embodiment, the PFC unit (499) and the boost unit (495) are used by boosting the voltage, and may be configured as an insulated type. According to one embodiment, the control unit (470) can control the PFC unit through the transmission unit (480), and at this time, the transmission unit (480) can transmit through a medium (e.g., a photocoupler, etc.).

[0099] According to one embodiment, the control of the first power control unit (440) can be controlled from the control unit (470) through the transmission unit (480). In one embodiment, if the first power control unit (440) is placed at the rear end of the charging unit (490) and the charging unit (490) is configured as an insulated type, direct control may be possible from the control unit (470) without going through the transmission unit (480). Control of the charging unit (490) can also be directly controlled from the control unit (470).

[0100] According to one embodiment, at least one power supply device among FIGS. 1, 2, 3, and 4 may use a low voltage DC voltage instead of a high voltage for the output unit (430), and the low voltage of the output unit (430) may eliminate electrical hazards. However, since the cable power transmission distance is shortened due to the low output voltage, the power supply device may be suitable for use in places with short transmission distances.

[0101] At least one output unit (430) among FIGS. 1, 2, 3, and 4 can be used primarily in places that use a lot of electricity, such as apartments, factories, tunnels, and streetlights, where power companies use large amounts of electricity, and can be used long-term in places that use small amounts of electricity, such as general households. In particular, it will be possible for each organization to check and control the remaining capacity of the battery (420). In one embodiment, information on the remaining capacity of the battery (420) can be transmitted to an external device via a communication unit.

[0102] In one embodiment, the power supply devices of FIGS. 1, 2, 3, and 4 can perform real-time demand power management by checking the remaining battery (420) capacity of the location where the system is installed in real time. In this case, the communication unit can be used to transmit and receive information.

[0103] For example, if the commercial power source uses DC direct current rather than AC alternating current, the PFC unit may not be necessary, but if the structure is insulated, the PFC unit may be required.

[0104] In one embodiment, when using a DC direct current power supply for the output unit (430), the DC boost unit (495) is used from the battery (420) power supply, which has the advantage of increasing efficiency compared to the AC inverter conversion efficiency, and can be compact, easy to control, and inexpensive. In addition, when the voltage of the battery (420) is adjusted to match the voltage of the output unit (430), a separate boost unit (495) may be unnecessary, loss in power conversion is eliminated, and the cost can be further reduced.

[0105] In one embodiment, when the output unit (430) outputs DC power, the power of the power company may comply with the commercial power standards of each country. For example, in the case of Korea, 220 VAC voltage, which is AC alternating current power, is applied. When this is converted to DC, the peak voltage is 311 V, and the power input terminal of the various electrical devices used in the output unit (430) is configured with a smoothing circuit including a bridge diode and a capacitor, so that the smoothed voltage, that is, the DC voltage, may be 311 V. This voltage is rectified to drive various electrical devices, and this configuration operation may cause a lot of reactive power to be generated in the power supplied by the electric power company because the commercial power input terminal power factor (PF (power factor)) is not good.

[0106] To improve this, some electrical devices are designed to include a power factor (PF) circuit, which reduces the aforementioned reactive power loss by reflecting the power factor circuit. When supplying DC power, including a power factor circuit, to the output unit (430), considering efficiency, there are two main configurations. These can be broadly divided into Boost and Buck circuits.

[0107] In Korea, 220VAC (AC voltage) and 380VAC (AC voltage) are mainly used. When a boost circuit is applied, for example, when 220VAC AC power is supplied, the output voltage must be configured to be higher than DC311V. If configured with a voltage boost of about 10%, approximately 342V DC voltage can be transmitted to the output unit (430). In addition, in Korea, 220VAC voltage is used, and for electrical safety, the variable range is 198VAC ~ 242VAC. In other words, this is the voltage that operates various electrical devices, and when converted to DC, it can be configured as a voltage of 280Vdc ~ 342VDC, but is not limited thereto. Therefore, if the output unit (430) voltage is set to 342VDC or higher, most electrical devices in Korea are designed to operate. In this case, cases that must use AC power, such as AC motors, may be excluded.

[0108] As above, when AC alternating current power is applied, DC voltage can be supplied to the output unit (430) using the PFC unit (499). As a result, when the stored surplus power is output as DC, the conversion efficiency of DC voltage is advantageous over that of outputting using an AC inverter, and the control can be configured simply. In particular, there is no need to control the AC phase.

[0109] In addition, since the PFC unit (499) is applied using commercial power, the PFC unit (499) includes a power factor circuit regardless of whether the power factor of the power of various electric devices used in the output unit (430) is applied, so the loss of reactive power supplied by the power company will be reduced.

[0110] In addition, the thickness of the wire (electric wire) of the output unit (430) can be thinner due to the DC output. Assuming that the power consumption of various electric devices used in the output unit (430) is the same, for example, if it has a power consumption of 100Watts, when the commercial power supply is 220VAC, the current theoretically flows at 0.454A (ampere), but when it is DC 342V (volt), the current flowing in the output unit (430) is significantly reduced to 0.342A, so that transmission is possible over a longer distance when the wire thickness is the same. The voltage of the output unit (430) is not fixed. More importantly, the THD (Threshold) will be close to 0, the harmonic content will be significantly reduced, and the same effect can be seen in FIG. 3.

[0111] In addition, when repairing a malfunction, for example, when replacing the battery (420) charging unit (490) circuit, a signal is sent to the control unit (470) to set it to supply from the commercial power supply, and then the replacement is performed. However, when the commercial power supply (410) circuit line malfunctions, the control unit (470) transmits information about the malfunction to the manager, and when replacing, since electric energy is stored in the battery (420), power cutoff may not occur during the replacement. The same effect can also be observed in FIGS. 2 and 3.

[0112] Figure 5 is a block diagram of a power supply device according to one embodiment.

[0113] Figure 5 is a configuration diagram of a power supply device (500) that utilizes surplus power while preventing the output power from being cut off.

[0114] According to one embodiment, the power supply device (500) includes a commercial power source (510, e.g., commercial power source (110) of FIG. 1), a battery (520) (e.g., battery (120) of FIG. 1), an output unit (530) (e.g., output unit (130) of FIG. 1), a first power control unit (540) (e.g., first power control unit (140) of FIG. 1), D1 (550), D2 (560), a control unit (570) (e.g., control unit (170) of FIG. 1), a transmission unit (580, e.g., transmission unit (380) of FIG. 3), a charging unit (590, e.g., charging unit (390) of FIG. 3), a boost unit (595, e.g., boost unit (395) of FIG. 3), a first power meter (596, e.g., first power meter (396) of FIG. 3), and a metering unit (597, e.g., 3), a second power meter (598, e.g., the second power meter (398) of FIG. 3), and a PFC (power factor correction) unit (599, e.g., the PFC unit (399) of FIG. 3). Descriptions of configurations and contents that overlap with those of FIG. 4 will be omitted.

[0115] Unlike FIGS. 1, 2, 3, and 4, FIG. 5 may operate without including the second power control unit and the third power control unit. In one embodiment, the third power control unit may be implemented as a diode (D2, 560) and may be continuously turned on. In one embodiment, the second power control unit may be implemented as a diode (D1, 550) and may be continuously turned on. In one embodiment, the boost unit (595) and the PFC unit (599) of FIG. 5 may operate continuously.

[0116] In one embodiment, it is assumed that an AC commercial power supply is applied. In one embodiment, it is assumed that DC power is supplied to the output unit (530) through the PFC unit (599) and D2 (diode, 560) via the commercial power supply (510). If the demand power is less than the maximum demand power, the control unit (570) may turn on the first power control unit (540) according to a signal sent from the power company to store electric energy in the battery (520) through the charging unit (590). The boost unit (595) may also boost the voltage so that DC power may be supplied to the output unit (530) through D1 (diode, 550). In one embodiment, the boost unit (595) may be applied with a voltage lower than the output DC voltage of the PFC unit (599). However, this is not limited thereto, and it is obvious that the opposite voltage may also be the same.

[0117] In one embodiment, when a momentary power outage occurs in a general commercial power supply during use, the voltage of the PFC unit (599) will momentarily drop to 0, and no voltage will be supplied to the output unit (530). However, when the DC output voltage of the PFC unit (599) drops and intersects with the output voltage of the boost unit (595), the voltage of the boost unit (595) will automatically be output toward the output unit (530) due to the potential difference, so that the output will not be cut off during a momentary power outage of the commercial power supply. In addition, power control according to the power supply and demand situation can be performed by including a second power control unit and a third power control unit in front or behind the diodes (D1, 550) (D2, 560).

[0118] In one embodiment, a case is assumed where a DC commercial power supply is applied. In one embodiment, as with the AC alternating current voltage, if the boost voltage is set relatively lower than the voltage of the PFC unit (599) or the voltage of the DC commercial power supply, the power cut-off phenomenon of the output unit (530) will not occur in the event of a momentary power outage of the commercial power supply. In one embodiment, in the case of DC power input, the PFC unit (599) may not be necessary.

[0119] In one embodiment, the booster (595) may not be required when the voltage of the battery (520) is high.

[0120] FIG. 6 is a block diagram of a portion that uses commercial surplus power according to one embodiment.

[0121] Referring to FIG. 6, the power supply device (600) may include a battery (620) (e.g., the battery (120) of FIG. 1), a first power control unit (640) (e.g., the first power control unit (140) of FIG. 1), a second power control unit (650), a control unit (670) (e.g., the control unit (170) of FIG. 1), a transmission unit (680, e.g., the transmission unit (380) of FIG. 3), a charging unit (690, e.g., the charging unit (390) of FIG. 3), a boost unit (695, e.g., the boost unit (395) of FIG. 3), and a first power meter (696, e.g., the first power meter (396) of FIG. 3), a meter reading unit (697, e.g., the meter reading unit (397) of FIG. 3). Although not shown, according to one embodiment, the power supply device (600) may include a commercial power source (510, e.g., the commercial power source (110) of FIG. 1) of FIG. 5, an output unit (530) (e.g., the output unit (130) of FIG. 1), a second power meter (598, e.g., the second power meter (398) of FIG. 3) and a power factor correction (PFC) unit (599, e.g., the PFC unit (399) of FIG. 3), and a third power control unit (460) of FIG. 4. Descriptions of configurations and contents overlapping with those of FIGS. 4 and 5 will be omitted. In one embodiment, power accumulated as commercial surplus power may be electrical energy stored in a battery when the demand power is less than the first power.

[0122] In one embodiment, the charging unit (690) may be implemented as a PWM (Pulse Width Modulation) charging unit. In one embodiment, the charging unit (690) may charge the battery (620) with electric energy more efficiently. The charging unit (690) may perform the function of a switch, a converter, or a controller, and specifically, the charging unit (690) may convert the generated electric energy through pulse-width modulation and supply the converted signal to the battery (620). The charging unit (690) may quickly supply the generated electric energy to the battery (620), thereby promoting rapid charging. In one embodiment of the present disclosure, the charging unit (690) may be replaced with at least one of MPPT (Maximum Power Point Tracking), Boost, Buck, or Buck Boost as well as the PWM charging method. However, the present invention is not limited thereto, and in the case of using natural energy described below, a flow charging method may be used as an example.

[0123] In one embodiment, when a signal is received by the controller (670) by the manager at a time when the demand power is less than the maximum demand power, the first power control unit (640) may be turned on to charge the battery through the charging unit (690). When the battery is fully charged (or completely charged), the control unit (670) may cut off the first power control unit (640) through the transmission unit (680). The first power control unit (640) is used to eliminate standby power consumption. When standby power consumption is ignored, the control unit (670) may control the state of the battery by directly controlling the charging unit (690).

[0124] Although not illustrated in FIG. 6, the power supply device (600) may include a communication unit according to one embodiment. For example, the communication unit may transmit and receive information with an external device using at least one of Wi-Fi (Wireless Fidelity) technology, LoRa (Long-Range) communication technology, or BLE (Bluetooth-Low-Energy) communication technology. For example, the external device may be a user terminal, but is not limited thereto. For example, the external device may be a server (e.g., a server corresponding to an external management system). Alternatively, the external device may be a server corresponding to a manager or a user terminal. For example, the control unit (670) may use the communication unit to check the maximum power demand currently consumed through wired / wireless communication with a power company, and control power when there is power surplus. In addition, power companies may be managed by different power companies. In addition, power users may directly set the usage time. In one embodiment, charging may be performed by a power company manager. When communicating over long distances, LoRa's unique characteristics allow for greater control over smaller amounts of information, allowing for longer transmission distances. This is particularly true in mountainous areas where network deployment is difficult.

[0125] In one embodiment, the power supply device (600) can be controlled using an existing power grid without installing a separate line by using power line communication.

[0126] In one embodiment, the second power control unit (650) may be configured as a diode (e.g., diode (550) of FIG. 5) above.

[0127] In one embodiment, when the output capacity is large, multiple commercial surplus power systems can be configured and used in multiple ways. For example, multiple power supply devices (600) can be used to supply electrical energy. In one embodiment, the power accumulated as commercial surplus power can be electrical energy stored in a battery when the demand power is less than the first power.

[0128] In one embodiment, the first power meter (696) may be a Korea Power Exchange (KPX) meter when selling through a power exchange.

[0129] According to one embodiment, the power supply device (600) may further include a charging unit (690) that stores electric energy received through the first power control unit (640) in the battery (620) when the demand power is less than the first power (e.g., maximum demand power). In one embodiment, when the control unit (670) determines that charging of the battery (620) is complete, the control unit (670) may turn off the first power control unit (640) or control the charging unit (690) so that charging of the battery (620) does not proceed.

[0130] According to one embodiment, the power supply device (600) may further include a temperature sensor for checking the external temperature. In one embodiment, the control unit (670) may check the status of the battery (620) based on the result of checking the external temperature checked through the temperature sensor. Since the charge / discharge status of the battery (620) is different in winter, the battery status according to the winter temperature input in advance may be compared with the battery status to enable control. In one embodiment, when the battery life is over or the battery fails, related information may be transmitted to a manager through the control unit (670). By knowing the low temperature characteristics of the battery in advance, errors in the discharge time and voltage for the winter battery can be reduced, thereby preventing the transmission of incorrect information.

[0131] FIGS. 7A to 7C are diagrams illustrating a method for controlling a power supply device through multiple managers.

[0132] According to FIGS. 7A and 7B , according to one embodiment, the power supply device (700) may include multiple systems (710, 730). According to one embodiment, the power supply device (700) may include at least one manager (at least one of 720 or 740). Here, the first system (710) and the second system (730) may each be a single sub-power supply device. In one embodiment, the sub-power supply device may be any one of the power supplies of FIGS. 1 to 6 , but is not limited thereto. In one embodiment, the manager may be an electronic device such as a user terminal or a server that transmits a control signal to the power supply device (700) or receives information from the power supply device (700), but is not limited thereto. In one embodiment, two systems are illustrated, but are not limited thereto, and it will be appreciated that multiple systems may be included in the power supply device (700).

[0133] In one embodiment, a power company may have a manager who manages demand power and a manager who controls output units. For example, the manager may be a manager who manages systems such as tunnel lights and street lights. For example, each system (710, 730) may be managed in an integrated manner by a manager who manages demand power at the power company. Additionally, although not shown, each system (710, 730) may be managed by a separate system manager. In one embodiment, the manager of the power company may check demand power and perform demand management for each system (710, 730) in real time according to the situation, and may transmit control commands.

[0134] In one embodiment, the system manager (at least one of 720 and 740) can manage power for its own system as a respective user. In one embodiment, in the case of charging and blocking of commercial surplus power in peak demand power control, the power company manager manages it. In one embodiment, since the system manager is unaware of the current power situation in Korea, the system manager may only manage the use of the output unit (e.g., the output unit (130) of FIG. 1). In one embodiment, each manager (720, 740) may include multiple managers.

[0135] In one embodiment, the control unit (e.g., the control unit (170) of FIG. 1) can check the charging status of the system's battery (e.g., the battery (120) of FIG. 2) and transmit it to the manager in real time, thereby enabling individual control of the systems installed in each region. In one embodiment, the power supply device (700) can include a communication unit (e.g., the communication unit of FIG. 2) and can transmit information about the charging status of the battery to an external device corresponding to the manager through the communication unit. In one embodiment, the system of the present invention, including the first system (710) and the second system (730) described above and FIG. 7c (7010), can include a plurality of sub-systems and a plurality of sub-managers, and each system can be managed by upper managers.

[0136] According to one embodiment, referring to FIG. 7C, a power supply device (7000) may include a plurality of systems (7010) and a plurality of managers (7020 and 7030). The plurality of systems (7010) may include a plurality of subsystems, and each of the plurality of subsystems may be any one of the power supply devices of FIGS. 1 to 6. However, the present invention is not limited thereto, and it is to be understood that the power supply devices may be any one of the power supply devices utilizing natural energy described below.

[0137] In one embodiment, manager B (7030) may be a manager (or a corresponding user terminal, server, or electronic device) that manages the entire power of the country.

[0138] Figure 7c illustrates a method for storing surplus energy from the power currently supplied by a power company according to demand for electricity and using it when demand increases. In one embodiment, Manager B can issue a compulsory power interruption order to a consumer with a contract. Furthermore, the order to interrupt power usage can be concurrently issued with an order to use power accumulated as commercial surplus power. In one embodiment, the power accumulated as commercial surplus power may be electrical energy stored in a battery when demand for electricity falls below the first power level.

[0139] In one embodiment, during a time when there is surplus power, Manager B (7030) can issue a command to store commercial surplus power. That is, this is a method to respond to users' power demand while reducing the amount of electricity produced using fossil fuels by lowering the average power production. In one embodiment, Manager B (7030) is a manager in charge of overall power, and Manager A (7020) can be a small power plant or an individual consumer. In one embodiment, during a time when there is surplus power, Manager B (7030) can transmit a command to Manager A (7020) to store commercial surplus power.

[0140] According to one embodiment, a control unit (e.g., a control unit (170) of FIG. 1) included in a power supply device (7000) may include a power device for supplying power to the control unit. According to one embodiment, the control unit may include an MCU (e.g., an MCU (Micro Controller Unit) for checking the status of a battery) for checking battery characteristics, and a temperature sensor (e.g., a temperature detection unit of FIG. 6). Since the current amount of power used can be known, power storage corresponding to the control unit can be managed by a power company. According to one embodiment, the control unit may receive information from the power company through wired / wireless communication via a communication unit and control a first power control unit (e.g., a first power control unit (140) of FIG. 1), a second power control unit (e.g., a second power control unit (150) of FIG. 1), and a third power control unit (e.g., a third power control unit (160) of FIG. 1).

[0141] In one embodiment, the control unit can control the output by the user. In one embodiment, the overall electricity usage can be monitored by the power company. The general user can be an electricity management staff member at a factory or building. In one embodiment, the control unit can control a second power control unit by the user through wired / wireless communication via the communication unit.

[0142] In one embodiment, the control unit can check the battery's storage capacity in real time. This allows the manager to check the battery's storage capacity in real time and distribute the current power demand in real time, enabling power distribution control.

[0143] FIG. 8 is a drawing for explaining a power supply device using natural energy according to one embodiment.

[0144] Referring to FIG. 8, the power supply device (800) may include a battery (820) (e.g., the battery (120) of FIG. 1), a first power control unit (840, e.g., the first power control unit (140) of FIG. 1), a control unit (870, e.g., the control unit (170) of FIG. 1), a transmission unit (880, e.g., the transmission unit (280) of FIG. 2), a charging unit (890, e.g., the charging unit (290) of FIG. 2), a first power meter (896, e.g., the first power meter (396) of FIG. 3), a meter reading unit (e.g., the meter reading unit (397) of FIG. 3), a fourth power control unit (860), natural energy (898), and a solar panel (899). In one embodiment, although not illustrated, the power supply device (800) may further include at least one of the configurations illustrated in FIGS. 1 to 5.

[0145] In one embodiment, the power supply device (800) can generate surplus power from natural energy and store it in a battery. In one embodiment, the natural energy may be solar, but is not limited thereto, and may include various types of natural energy (e.g., wind power, tidal power, nuclear power, etc.). However, the present disclosure will focus on solar energy using a solar panel (899) among the natural energy sources.

[0146] According to one embodiment, the power supply device (800) may include a solar panel (899) that generates electric energy based on solar energy collected through a plurality of solar cells arranged in at least one row or column. According to one embodiment, the power supply device (800) may further include a fourth power control unit (860) that stores electric energy received through the solar panel (899) in a battery (820). In one embodiment, the control unit may control the first power control unit (840) to be turned off and the fourth power control unit (860) to be turned on when the demand power is equal to or greater than the first power. In addition, since the power is stored through the battery when the demand power is equal to or greater than the maximum demand power, the power produced as surplus power is used while simultaneously being supplemented from natural energy, so that more power than the surplus power produced can be used during the peak demand power hours. Typically, the time when solar energy is produced is mainly the time when users are active, and the demand for electricity is high at this time. That is, when the demand power is greater than the maximum demand power, it is intended to additionally store and use electricity in the battery (820) through natural energy (898). In one embodiment, when the demand power is greater than the first power (e.g., the maximum demand power), the first power control unit (840) is turned off, and power can be produced from natural energy (898). In one embodiment, the fourth power control unit (860) can store electric energy received through the solar panel in the battery, and can be turned on even when the demand power is greater than the first power. According to one embodiment, the fourth power control unit (860) can be a device that can turn on / off AC voltage, such as a relay, a triode for alternating current (TRIAC), or a selective catalytic reduction (SCR).

[0147] Unlike the drawing, the fourth power control unit (860) may be placed between the charging unit (890) and the battery (820). According to one embodiment, the power supply device (800) may include a second charging unit that stores electric energy received through the fourth power control unit (860) in the battery. For example, the power supply device (800) may be separately provided with a second charging unit capable of charging natural energy (898) at the rear end of the fourth power control unit (860).

[0148] In one embodiment, the fourth power control unit (860) may be a single diode. In one embodiment, when the demand power is less than the first power, the first power control unit (840) may be turned on. In one embodiment, the first power control unit (840) and the fourth power control unit (860) may be operated by being controlled by a control unit (e.g., the control unit (170) of FIG. 1), but since the production of natural energy (898) is sensitive to climate change, when the climate is not good, the amount of electricity produced from natural energy (898) is very low, and in this case, the commercial surplus power (e.g., the commercial surplus power of FIGS. 1 to 6) supplied from a commercial power source (e.g., the commercial power source (110) of FIG. 1) will be stored in the battery (820). In one embodiment, when the production of natural energy (898) is high, the electric energy obtained from natural energy (898) will be stored in the battery (820). In one embodiment, operation may be achieved by adding a diode to the rear end of the charging unit (890) to prevent power from flowing in the opposite direction.

[0149] This configuration allows for a more efficient surplus power system by simply connecting solar or wind energy sources, while building a commercial surplus power system. By simply adding a natural energy source (898), cost and size can be significantly reduced.

[0150] FIG. 9 is a drawing for explaining a power supply device using natural energy according to one embodiment.

[0151] Referring to FIG. 9, according to one embodiment, a power supply device (900) includes a natural energy (901, e.g., natural energy (898) of FIG. 8), a solar panel (899, (903, e.g., solar panel of FIG. 8)), a second charging unit (905), a second battery (907), a fifth power control unit (909), a boost unit (913, e.g., boost unit (395) of FIG. 3), a second power control unit (911, e.g., the second power control unit (150) of FIG. 1), a battery (915, e.g., the battery (120) of FIG. 1), a charging unit (917, e.g., the charging unit (290) of FIG. 2), a first power control unit (919, e.g., the first power control unit (140) of FIG. 1), a control unit (923, e.g., the control unit (170) of FIG. 1), and a transmission unit (921, e.g., of FIG. 2). It may include a transmission unit (280). In one embodiment, although not shown, the power supply device (900) may further include at least one of the configurations shown in FIGS. 1 to 5.

[0152] FIG. 9 is a diagram for generating surplus power from natural energy (901) and storing the surplus power in a battery (915) to be used in parallel with commercial surplus power when the demand power is greater than the first power (e.g., maximum demand power). According to one embodiment, the power supply device (900) can use system energy separately constructed from natural energy (901), such as the sun.

[0153] In one embodiment, the fifth power control unit (909) can remain turned on. Either the commercial surplus power stored in the battery (915) or the natural energy surplus power (e.g., energy stored in the second battery (907)) can be used first, but in one embodiment, the energy stored in the second battery (907) can be used first. In one embodiment, the second charging unit (905) can store the electric energy received through the solar panel (903) in a second battery (907) different from the battery (915). In one embodiment, the fifth power control unit (909) can transmit the electric energy stored in the second battery (907) to the boost unit (913). In one embodiment, the control unit (923) can control the fifth power control unit (909) to be turned on.

[0154] In one embodiment, although not shown in the drawing, a power control unit for controlling commercial surplus power obtained from a commercial power source (e.g., commercial power source (110) of FIG. 1) may be additionally included between the battery (915), the fifth power control unit (909), and the booster unit (913). In addition, as shown in the drawing, among the surplus power production unit and the natural energy utilization unit in the drawings of FIGS. 1 to 5, the power supply device (900) may of course further include at least one of the configurations shown in FIGS. 1 to 5. There is an output unit at the rear end of the second power control unit (911), and the configuration of the commercial power source unit excluding the surplus power is also included, and when the output unit is AC, the booster unit (913) may be an inverter.

[0155] In one embodiment, the fifth power control unit (909) may be a single diode. In one embodiment, depending on the voltage of the electric energy stored in the battery (915) and the second battery (907), a battery with a relatively high voltage may be consumed first. In one embodiment, when the production of natural energy (901) is high, the electric energy obtained from the natural energy (901) will be stored in the battery (907). In this operation, a diode may be added to the rear end of the charging unit (905) to prevent the power from flowing in the opposite direction, thereby enabling operation. In one embodiment, the power supply device (900) may further include a diode provided at one end of at least one of the charging unit and the second charging unit.

[0156] Additionally, according to one embodiment, if the voltage of the second battery (907) is relatively large compared to the voltage of the battery (915), the booster (913) may not be used.

[0157] In one embodiment, the existing natural energy (901) system is utilized, but additional natural energy systems are constructed separately to enable the utilization of surplus power in parallel (or in multiple ways).

[0158] FIG. 10 is a drawing for explaining a power supply device including an inverter system according to one embodiment.

[0159] Referring to FIG. 10, a power supply device (1000) according to one embodiment includes a battery (1020, e.g., battery (120) of FIG. 1), an output unit (1030, e.g., output unit (130) of FIG. 1), a first power control unit (1040, e.g., first power control unit (140) of FIG. 1), a second power control unit (1050, e.g., second power control unit (150) of FIG. 1), a third power control unit (1060, e.g., third power control unit (160) of FIG. 1), a control unit (1070, e.g., control unit (170) of FIG. 1), a transmission unit (1080, e.g., transmission unit (280) of FIG. 2), a charging unit (1090, e.g., charging unit (290) of FIG. 2), an AC inverter (1095, e.g., AC inverter (295) of FIG. 2), and an inverter system (1096). And may include a sixth power control unit (1097). In one embodiment, although not shown, the power supply device (1000) may further include at least one of the configurations shown in FIGS. 1 to 5.

[0160] In one embodiment, the inverter system (1096) may be an electronic device including an inverter (e.g., an AC inverter) that converts natural energy. For example, when the inverter system (1096) is implemented as a solar inverter system, it may convert the direct current voltage generated from natural energy in solar power generation into an alternating current voltage and supply the same to a designated device in the power supply device (1000). In one embodiment, the inverter system (1096) may be a grid-connected inverter or a stand-alone inverter, but is not limited thereto. In one embodiment, the inverter system (1096) may obtain natural energy, convert it into an alternating current voltage through an inverter, and transmit the same to the sixth power control unit (1097). However, the present invention is not limited thereto, and it is of course possible to obtain energy through different types of natural energy such as wind power, tidal power, and nuclear power, and convert the same.

[0161] In one embodiment, the sixth power control unit (1097) can supply electric energy received from the inverter system (1096) to the output unit. In one embodiment, the control unit (1070)) can control the sixth power control unit (1097) to be turned on when the demand power is greater than or equal to the first power (e.g., maximum demand power).

[0162] According to one embodiment, FIG. 10 is a diagram for generating surplus power from natural energy (e.g., natural energy of FIG. 9) and storing the surplus power in a battery (1020) to use in parallel with commercial surplus power when the maximum demand power is greater than the maximum demand power. In one embodiment, an inverter system (1096) constructed separately from natural energy such as solar energy may be used as shown in the diagram. At this time, the sixth power control unit (1097) may remain turned on. Any one of the commercial surplus power stored in the battery (1020) and the natural energy surplus power may be used first, but the natural energy may be used first. In other words, the power supply device (1000) according to one embodiment may sequentially supply either the commercial surplus power stored in the battery (1020) or the surplus power obtained from natural energy to the consumer through the output unit (1030). In one embodiment, the amount of energy may be confirmed by the control unit through the battery (1020). In one embodiment, the sixth power control unit (1097) may be a device capable of turning on / off AC voltage, such as a relay, a triode for alternating current (TRIAC), or a selective catalytic reduction (SCR).

[0163] According to one embodiment, the power supply device (1000) may utilize a pre-installed natural energy system, but may also construct a separate natural energy system to utilize surplus power in parallel (or in multiple ways).

[0164] According to one embodiment, in FIGS. 1 to 10, the meaning of 'first power (or, more than maximum demand power)' means that a lot of power is used, and does not necessarily mean when the first power (maximum demand power) is exceeded, and of course, a different power size may be the standard.

[0165] Figures 11a to 11c are drawings for explaining a solar power generation system.

[0166] Figures 11a to 11c relate to a method of producing surplus electricity by utilizing currently installed eco-friendly power generation such as wind and solar power.

[0167] Power generation using eco-friendly energy sources such as solar energy is being implemented. However, the amount of power generated by eco-friendly energy sources varies depending on climate change. This paper will explain how to utilize this eco-friendly energy source to utilize surplus commercial electricity. As an example, eco-friendly energy sources include solar, wind, tidal, and hydroelectric power. However, for convenience, we will focus on a solar power generation device (1100).

[0168] According to FIG. 11a, a solar power generation device (1100) may include the sun (1110, e.g., natural energy of FIG. 2), a solar panel (1120, e.g., a solar panel of FIG. 2), a charging unit (1130, e.g., a charging unit of FIG. 2), a battery (1140, e.g., a battery of FIG. 1), an inverter (1150, e.g., an inverter of FIG. 3), a grid-connected device (1160), a commercial grid (1170), and a consumer (1180).

[0169] In one embodiment, the solar power generation device (1100) may have a built-in battery (1140) which is a storage device. That is, it stores electric energy obtained from a solar panel through a battery or an energy storage system (ESS) device, converts it into electric energy using an inverter, and may include a grid-connected protection device. In one embodiment, the power supply device of the present disclosure (e.g., the power supply device (100) of FIG. 1) may obtain electric energy through a commercial power source (e.g., the commercial power source (110) of FIG. 1) and supply it to a consumer through an output unit (e.g., the output unit (130) of FIG. 1). However, as described above, it may also obtain energy from an eco-friendly energy acquisition device (e.g., a solar power generation device), convert it into electric energy, and supply it to a consumer through an output unit.

[0170] As shown in Fig. 11a, the electric energy collected through the solar panel (1120) is stored in a battery (1140) through a charging unit (1130), and then converted by an AC inverter (1150) and consumed through a grid-connected device (1160) or sent to a power plant (1170 or 1180).

[0171] According to one embodiment, the solar power generation device (1100-1) may be configured as a device excluding the solar panel (1120) as shown in FIG. 11b, and the solar power generation device (1100-2) may be configured as a device excluding the charging unit (1130) and the solar panel (1120) as shown in FIG. 11c.

[0172] FIG. 12 is a diagram illustrating a method for storing surplus power by utilizing eco-friendly energy according to one embodiment.

[0173] According to FIG. 12, the power supply device (1200) may include a first power meter (1210, e.g., the first power meter of FIG. 2), a first power control unit (1220, e.g., the first power control unit (140) of FIG. 1), a charging unit (1230, e.g., the charging unit of FIG. 2), a commercial power source (1240, e.g., the commercial power source of FIG. 1), a meter reading unit (1250, e.g., the meter reading unit of FIG. 2), a transmission unit (1260, e.g., the transmission unit of FIG. 2), and a control unit (1270, e.g., the control unit of FIG. 1). However, the present invention is not limited thereto, and it is of course possible to further include at least some of the configurations of FIGS. 1 to 5.

[0174] In one embodiment, the charging unit (1230) of the power supply device (1200) may be connected to the charging unit (1130) illustrated in FIG. 11b. In one embodiment, the commercial power source (1240) may be a commercial power source of AC alternating voltage, and in this case, the power supply device (1200) may further include an AC to DC converter to correspond to the electric energy received from the solar power generation device (at least one of 1100-1 to 1100-3). In one embodiment, the AC to DC converter may transmit the DC voltage to the charging unit (1130) illustrated in FIG. 11b. In one embodiment, the electric energy corresponding to the commercial power source (1240) may be stored in the battery (1140) through the charging unit (1130) illustrated in FIG. 11b. That is, the battery (1140) illustrated in FIG. 11b can store electric energy obtained through solar power generation and electric energy obtained through commercial power sources.

[0175] In one embodiment, when the demand power is less than the first power, the first power control unit (1220) is turned on to store electric energy supplied from the commercial power source (1240) in the battery (1140) illustrated in FIG. 11b.

[0176] In one embodiment, the charging unit (1230) of the power supply device (1200) and the battery (1140) illustrated in FIG. 11C may be connected and used. In one embodiment, the charging unit (1230) may perform a charging function such as PWM, and may store commercial surplus power in the battery (1140) illustrated in FIG. 11C. In one embodiment, even in a section where the first power of the solar power generation device (at least one of 1100-1 to 1100-3) is lower than the first power, the first power control unit (1220) may be turned on to store and use power through the battery.

[0177] For example, power plants are connected to the grid, allowing them to utilize stored electrical energy. This principle aims to store and utilize surplus power below peak demand rather than wasting it. In particular, for power generation sources like nuclear power, storing and resupplying uncontrolled power, which is not subject to real-time control, can reduce fossil fuel consumption in powering other types of power generation.

[0178] In one embodiment, when the inverter (1150) of FIGS. 11a to 11c is changed to a booster (e.g., the booster of FIG. 2), it may be used as a DC output.

[0179] Solar power generation has a low energy density, resulting in relatively low power generation efficiency. This, in turn, requires high initial investment costs. Furthermore, securing space for installation can negatively impact the ecosystem due to deforestation and development. Therefore, by linking this surplus commercial power, solar power generation can be utilized while increasing battery and inverter capacity, resulting in a more efficient power system.

[0180] In addition, users who currently operate or use solar power generation businesses can prevent power consumption by storing additional energy in batteries when the power generation varies depending on the weather and the maximum demand power is lower than the commercial surplus power, and there is an advantage in that it can be used efficiently by utilizing the existing power grid.

[0181] For example, in the case of tidal power, power generation is generated due to the difference in tides, and the time of generation may vary depending on the time of the tidal difference (high tide / low tide). In addition, in the case of wind power, the amount of power generation may be high due to the weather (e.g., when the wind blows a lot). In addition, in the case of hydropower, there may be times when the amount of power generation is abundant due to the weather (e.g., when it rains a lot). However, the amount of power generation of these natural energies may vary depending on the time or weather, and in this case, the amount of generated electric energy can be stored in a storage warehouse (e.g., a battery) together with the power supply device of the present disclosure. In this case, there is an advantage in that the stored electric energy can be used when the user's demand for power is high. In addition, it will be a device that safely uses power for demand power in areas where climate change and power generation occur irregularly.

[0182] When utilizing a power storage device, it can be used as an emergency power source. Although not shown in the above-described drawing, the control unit (e.g., the control unit (170) of FIG. 1) can check information on the commercial power input. When a power outage occurs due to a cutoff of the commercial power source, the device can operate as an emergency power source using the surplus power stored in the battery storage unit. When the commercial power source is cut off, the second power control unit (e.g., the second power control unit (150) of FIG. 1) is turned on to operate as an emergency power source, and the control unit can notify the manager of the current commercial power source using wired / wireless communication. By checking the surplus power stored in the battery storage unit, the amount of power currently available for use can also be checked.

[0183] When using DC power at the output, the power efficiency of the output load increases. Furthermore, since power conversion losses are eliminated when using high battery voltages, solar energy losses can approach 0%.

[0184] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned will be clearly understood by a person having ordinary skill in the art to which the present disclosure pertains.

[0185] As used herein, the term “if” will be understood to mean “when, upon,” “in response to deciding,” or “in response to detecting,” depending on the context. Similarly, “if it is decided to do,” or “if [the stated condition or event] is detected,” will optionally be understood to mean “upon deciding,” or “in response to deciding,” “upon detecting [the stated condition or event],” or “in response to detecting [the stated condition or event].”

[0186] The devices described above may be implemented as hardware components, software components, and / or a combination of hardware components and software components. For example, the devices and components described in the embodiments may be implemented using one or more general-purpose computers or special-purpose computers, such as a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate array (FPGA), a programmable logic unit (PLU), a microprocessor, or any other device capable of executing instructions and responding to them. A processing device (or processing circuit) may execute an operating system (OS) and one or more software applications running on the operating system. In addition, the processing device may access, store, manipulate, process, and generate data in response to the execution of the software. For ease of understanding, the processing device is sometimes described as being used alone; however, one of ordinary skill in the art will recognize that the processing device may include multiple processing elements and / or multiple types of processing elements. For example, a processing unit may include multiple processors, or a processor and a controller. Other processing configurations, such as parallel processors, are also possible.

[0187] Software may include a computer program, code, instructions, or a combination of one or more of these, which may configure a processing device to perform a desired operation or may independently or collectively command the processing device. The software and / or data may be embodied in any type of machine, component, physical device, computer storage medium, or device for interpretation by the processing device or for providing instructions or data to the processing device. The software may also be distributed over networked computer systems and stored or executed in a distributed manner. The software and data may be stored on one or more computer-readable recording media.

[0188] The method according to the embodiment may be implemented in the form of program commands that can be executed through various computer means and recorded on a computer-readable medium. In this case, the medium may be one that continuously stores a computer-executable program or one that temporarily stores it for execution or download. In addition, the medium may be various recording or storage means in the form of a single or multiple hardware combinations, and is not limited to a medium directly connected to a computer system, but may also be distributed over a network. Examples of the medium may include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical recording media such as CD-ROMs and DVDs, magneto-optical media such as floptical disks, and those configured to store program commands, including ROM, RAM, and flash memory. In addition, examples of other media may include recording or storage media managed by app stores that distribute applications, sites that supply or distribute various software, servers, etc.

[0189] Although the embodiments described above have been described by way of limited examples and drawings, those skilled in the art will appreciate that various modifications and variations can be made based on the above teachings. For example, appropriate results can still be achieved even if the described techniques are performed in a different order than described, and / or components of the described systems, structures, devices, circuits, etc. are combined or combined in a different manner than described, or are replaced or substituted with other components or equivalents.

[0190] Therefore, other implementations, other embodiments, and equivalents to the claims also fall within the scope of the claims described below.

[0191] The power supply devices according to the various embodiments disclosed in this document may take various forms. The power supply devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. The power supply devices according to the embodiments of this document are not limited to the aforementioned devices.

[0192] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0193] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0194] Various embodiments of the present document may be implemented as software (e.g., program (140)) including one or more instructions stored in a storage medium (e.g., built-in memory (136) or external memory) readable by a machine (e.g., power supply device (101)). For example, a processor (e.g., processor (120)) of the machine (e.g., power supply device (101)) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the called at least one instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not include a signal (e.g., electromagnetic waves). The term does not distinguish between cases where data is stored semi-permanently or temporarily on a storage medium.

[0195] According to one embodiment, the method according to various embodiments disclosed in this document may be provided as included in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) through an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0196] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In the power supply device, A commercial power source that supplies electrical energy; A battery that stores electrical energy; Output section; A first power control unit for storing electric energy received through the commercial power source in the battery; A second power control unit that supplies electric energy stored in the battery to the output unit; A third power control unit that supplies electric energy received through the commercial power supply to the output unit; and including a control unit; The above control unit, When the demand power is less than the first power, the first power control unit and the third power control unit are controlled to be turned on, and the second power control unit is controlled to be turned off. A power supply device, wherein when the demand power is greater than or equal to the first power, the first power control unit and the third power control unit are controlled to be turned off, and the second power control unit is controlled to be turned on.

2. In paragraph 1, The above control unit, A power supply device that controls the third power control unit to be turned on when it is confirmed that the demand power is greater than or equal to the first power and the voltage corresponding to the battery is less than or equal to the reference voltage.

3. In paragraph 1, It further includes a transmission unit for transmitting a control signal; The above control unit, When the demand power is less than the first power, the first power control unit and the third power control unit are controlled to be turned on through the transmission unit, and the second power control unit is controlled to be turned off. A power supply device that controls the first power control unit and the third power control unit to be turned off and the second power control unit to be turned on when the demand power is greater than or equal to the first power through the transmission unit.

4. In paragraph 1, A power supply device further comprising a charging unit that stores electric energy received through the first power control unit in the battery when the demand power is less than the first power.

5. In paragraph 1, The above power supply device, It further includes an AC (alternating current) inverter that converts the electric energy stored in the battery into alternating current power and supplies it to the second power control unit; The above commercial power supply is, It supplies AC alternating current power, The above output section, A power supply device that outputs AC power received from at least one of the second power control unit and the third power control unit.

6. In paragraph 1, The above commercial power supply is, It supplies DC(direct current) power, The above power supply device, A power supply device further comprising an AC (alternating current) inverter that converts electric energy received through the commercial power source into alternating current power and supplies the converted electric energy to the third power control unit.

7. In paragraph 1, The above commercial power supply is, It supplies AC(alternating current) power. The above power supply device, A booster unit that boosts the electric energy stored in the battery and supplies it to the second power control unit; and It further includes a PFC (power factor correction) unit that converts electric energy received from the commercial power source into direct current power and supplies it to the third power control unit; The above control unit, When the demand power is less than the first power, the PFC unit is operated so that direct current power is supplied to the third power control unit. A power supply device that controls the boosting unit so that the boosted electric energy is supplied to the second power control unit when the demand power is greater than or equal to the first power.

8. In paragraph 7, The above control unit, When the demand power is greater than or equal to the first power and the voltage corresponding to the booster is less than the voltage corresponding to the PFC unit, the third power control unit is controlled to be turned off after the second power control unit is turned on. A power supply device that controls the second power control unit to be turned off after the third power control unit is turned on when the demand power is less than the first power and the voltage corresponding to the booster unit is less than the voltage corresponding to the PFC unit.

9. In paragraph 8, The third power control unit, It is implemented as a diode and is kept in a continuously turned-on state. The above control unit, A power supply device that controls the booster unit and the PFC unit so that the voltage corresponding to the booster unit exceeds the voltage corresponding to the PFC unit.

10. In paragraph 8, The above second power control unit, It is implemented as a diode and is kept in a continuously turned-on state. The above control unit, A power supply device that controls the booster unit and the PFC unit so that the voltage corresponding to the booster unit is less than the voltage corresponding to the PFC unit.

11. In paragraph 10, The third power control unit, A power supply device implemented with a diode that is continuously turned on.

12. In paragraph 1 or paragraph 7, including the Department of Communications; The above control unit, A power supply device that obtains information about the first power from an external device through the communication unit.

13. In paragraph 1 or paragraph 7, including the Department of Communications; The above control unit, Check the information about the remaining capacity of the above battery, A power supply device that transmits information about the confirmed remaining capacity to an external device through the communication unit.

14. In paragraph 1, The above power supply device, If the demand power is less than the first power, the charging unit further includes a charging unit that stores the electric energy received through the first power control unit in the battery; The above control unit, A power supply device that turns off the first power control unit when it is confirmed that charging of the battery is complete, or controls the charging unit so that charging of the battery does not proceed.

15. In paragraph 14, The above power supply device, It further includes a temperature sensor for checking the external temperature, A power supply device in which the control unit checks the status of the battery based on the result of checking the external temperature confirmed through the temperature sensing unit.

16. In paragraph 14, The above power supply device, including the Department of Communications; The above control unit, A power supply device that communicates with an external device using a designated communication method through the above communication section.

17. In paragraph 14, including the Department of Communications; The above control unit, Check the information about the remaining capacity of the above battery, A power supply device that transmits information about the confirmed remaining capacity to an external device through the communication unit.

18. In paragraph 1, The above power supply device, comprising at least one sub power supply and at least one manager; At least one of the above administrators, A power supply device, which transmits a control command to at least one sub-power supply device in a designated communication manner.

19. In paragraph 18, The above power supply device, Containing multiple sub power supplies and multiple managers, The above multiple administrators, Includes first and second administrators, The above first manager, By the above-mentioned specified communication method, a control command for controlling the plurality of sub-power supply devices is transmitted to the second manager, A power supply device, wherein the second manager controls the plurality of sub-power supply devices based on a control command received from the first manager.

20. In paragraph 1, In power supply devices, Further comprising a fourth power control unit for storing electric energy received through natural energy in the battery; The above control unit, A power supply device, wherein when the demand power is greater than or equal to the first power, the first power control unit is controlled to be turned off, and the fourth power control unit is controlled to be turned on.

21. In paragraph 20, The above power supply device, A power supply device further comprising a second charging unit that stores electric energy received through the fourth power control unit in the battery.

22. In paragraph 1, In power supply devices, Second battery; booster; A second charging unit that stores electric energy received through natural energy in a second battery different from the battery; and It further includes a fifth power control unit that transmits the electric energy stored in the second battery to the booster unit; The above control unit, A power supply device that controls the fifth power control unit to be turned on when the demand power is greater than or equal to the first power.

23. In paragraph 22, A power supply device, wherein among the voltage corresponding to the above battery and the voltage corresponding to the second battery, a battery corresponding to a relatively higher voltage is preferentially consumed.

24. In paragraph 22, The above power supply device, A power supply device further comprising a diode provided on at least one end of the charging unit and the second charging unit.

25. In paragraph 1, The above power supply device, A sixth power control unit for supplying the received electric energy to the output unit; and When natural energy is obtained, it further includes an inverter system that converts it into AC alternating voltage and transmits it to the sixth power control unit; The above control unit, A power supply device that controls the sixth power control unit to be turned on when the demand power is greater than or equal to the first power.

26. In paragraph 1, Further comprising a charging unit connected to a third charging unit corresponding to a solar power generation device; The above power supply device, A power supply device that transmits electric energy supplied from the commercial power source to the charging unit to the third charging unit, and controls the electric energy supplied to the charging unit to be stored in a battery corresponding to the solar power generation device.

27. In paragraph 26, Further comprising a converter connected to the charging unit; The above power supply device, A power supply device that transmits electric energy converted into a direct current voltage through the converter to the third charging unit when the demand power is less than the first power.

28. In paragraph 1, Further comprising a charging unit connected to a battery corresponding to a solar power generation device; The above power supply device, A power supply device that transmits electric energy supplied from the commercial power source to the charging unit to a battery corresponding to the solar power generation device when the demand power is less than the first power.

29. In paragraph 1, The above commercial power supply is, It supplies DC (direct current) power, The above control unit, When the demand power is less than the first power, the third power control unit is controlled so that the DC power received through the commercial power supply is supplied to the output unit. A power supply device that controls the supply of electric energy stored in the battery to the second power control unit when the demand power is greater than or equal to the first power.

30. In paragraph 1, The above commercial power supply is, It supplies DC (direct current) power, The above power supply device, It further includes a booster unit that boosts the electric energy stored in the battery and supplies it to the second power control unit; The above control unit, When the demand power is less than the first power, the third power control unit is controlled so that the DC power received through the commercial power supply is supplied to the output unit. A power supply device that controls the boosting unit so that the boosted electric energy is supplied to the second power control unit when the demand power is greater than or equal to the first power.

31. In paragraph 30, The above control unit, When the demand power is greater than or equal to the first power and the voltage corresponding to the booster is less than the voltage corresponding to the third power control unit, the third power control unit is controlled to be turned off after the second power control unit is turned on. A power supply device that controls the second power control unit to be turned off after the third power control unit is turned on when the demand power is less than the first power and the voltage corresponding to the booster is less than the voltage corresponding to the third power control unit.

32. In paragraph 31, The third power control unit, It is implemented as a diode and is kept in a continuously turned-on state. The above control unit, A power supply device that controls the booster so that the voltage corresponding to the booster exceeds the voltage corresponding to the commercial power supply.

33. In paragraph 31, The above second power control unit, It is implemented as a diode and is kept in a continuously turned-on state. The above control unit, A power supply device that controls the booster so that the voltage corresponding to the booster is lower than the voltage corresponding to the commercial power supply.

34. In paragraph 33, The third power control unit, A power supply device implemented with a diode that is continuously turned on.

35. A method for operating a power supply device including a commercial power source for supplying electric energy, a battery for accumulating electric energy, an output unit, a first power control unit for storing electric energy received through the commercial power source in the battery, a second power control unit for supplying electric energy stored in the battery to the output unit, a third power control unit for supplying electric energy received through the commercial power source to the output unit, and a control unit, When the demand power is less than the first power, a step of controlling the first power control unit and the third power control unit to be turned on, and controlling the second power control unit to be turned off; and An operating method of a power supply device, comprising: a step of controlling the first power control unit and the third power control unit to be turned off, and controlling the second power control unit to be turned on, when the demand power is greater than or equal to the first power.

36. In a storage medium storing computer-readable instructions, the instructions, when executed by a control unit of a power supply device including a commercial power supply supplying electric energy, a battery storing electric energy, an output unit, a first power control unit storing electric energy received through the commercial power supply in the battery, a second power control unit supplying electric energy stored in the battery to the output unit, a third power control unit supplying electric energy received through the commercial power supply to the output unit, and a control unit, cause the power supply device to: When the demand power is less than the first power, the first power control unit and the third power control unit are controlled to be turned on, and the second power control unit is controlled to be turned off. A power supply device that causes the first power control unit and the third power control unit to be turned off and the second power control unit to be turned on when the demand power is greater than or equal to the first power.

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