Charging system for standalone power source

Abstract

The present invention relates to a charging system for a standalone power source and, more specifically, to a charging system for a standalone power source, which can implement a standalone power source, without using a phase power source (three-phase or single-phase), by configuring a charger by connecting an energy storage system (ESS) and an electric vehicle charger in series. The charging system for a standalone power source comprises: a new and renewable energy generation unit for electrical energy generation including at least one of solar power generation or wind power generation; an energy storage unit for storing the electrical energy generated by the new and renewable energy generation unit; a charging unit for supplying the electrical energy stored in the energy storage unit to an energy use unit including an electric vehicle and a household load; and a control unit for controlling each component to supply the electrical energy to the energy use unit by controlling the operation of the charging system, wherein the energy storage unit and the charging unit are connected in series.

Description

Charging system for independent power supply

[0001] The present invention relates to a charging system for an independent power source, and more specifically, to an ESS-charger charging system for an independent power source that can configure an independent power source without using a phase power source (three-phase or single-phase) by connecting an Energy Storage System (ESS) and an electric vehicle charger in series to form a charger.

[0002] Recently, as environmental issues have emerged as a global concern, the adoption of electric vehicles is increasing due to their advantage of not producing exhaust gases compared to conventional internal combustion engine vehicles. Consequently, the demand for charging facilities and the demand for electricity to charge these electric vehicles are surging.

[0003] More specifically, recently, in addition to electric vehicles, the use of various electronic devices including smartphones and home appliances has been rapidly increasing, and furthermore, due to the advancement of artificial intelligence technology, the demand for electricity to operate and provide various AI services is increasing explosively.

[0004] However, due to various environmental issues, the construction of additional power plants is not easy, so there is a problem in that the amount of electricity that can be produced and supplied is limited.

[0005] In particular, while electric vehicles themselves operate on electricity rather than gasoline, the issue of carbon neutrality is also being raised because not all of the electricity used for charging is renewable energy.

[0006] Furthermore, while electricity demand for households, as well as for electric vehicle charging, is rapidly increasing, there is a problem where the supply of electricity is not smooth compared to the increase in demand; however, no efficient method has been proposed to resolve the issue of power supply shortages.

[0007] To address these issues, it is desirable to propose a new charging system configured to resolve power supply shortages without concerns about environmental pollution by utilizing renewable electrical energy produced through eco-friendly power generation—such as solar or wind power—instead of the existing power supply network to charge electric vehicles and household electricity; however, the reality is that no device or method has yet been presented that fully satisfies these requirements.

[0008] The present invention was devised to solve the problems described above, and aims to provide an ESS-charger charging system for independent power sources that can supply power to electric vehicles or homes in an eco-friendly manner by linking renewable electric energy produced using solar power generation or wind power generation with an Energy Storage System (ESS).

[0009] In addition, the present invention aims to provide an ESS-charger charging system for independent power sources that can adjust the output capacity of the ESS by configuring a charging system in which a charger for charging electric vehicles and an ESS are connected in series.

[0010] In addition, the present invention aims to provide an ESS-charger charging system for an independent power source that can build a household independent power system that does not use commercial power by connecting a charger for charging electric vehicles and an ESS in series to charge the ESS.

[0011] However, the purpose of the present invention is not limited to the purposes mentioned above, and other unmentioned purposes will be clearly understood by those skilled in the art from the description below.

[0012] To achieve the above objective, a charging system for an independent power source according to one embodiment of the present invention comprises: a renewable energy generation unit that generates electrical energy by including at least one of solar power generation or wind power generation; an energy storage unit that stores electrical energy generated through the renewable energy generation unit; a charging unit that supplies electrical energy stored in the energy storage unit to an energy user unit including an electric vehicle and a household load; and a control unit that controls each component to supply electrical energy to the energy user unit by controlling the operation of the charging system, wherein the energy storage unit and the charging unit are connected in series.

[0013] In addition, a charging system for an independent power source according to one embodiment of the present invention is characterized by comprising an energy storage system (ESS) such that the energy storage unit stores electrical energy generated through the renewable energy generation unit.

[0014] In addition, a charging system for an independent power source according to one embodiment of the present invention is characterized in that the charging unit is configured as a DC / DC converter to enable adjustment of the energy output from the energy storage unit.

[0015] In addition, a charging system for an independent power source according to one embodiment of the present invention is characterized in that the control unit monitors the power used by the energy user unit and controls the charging unit according to the amount of energy required by the energy user unit.

[0016] In addition, a charging system for an independent power source according to one embodiment of the present invention is characterized in that the control unit monitors the amount of energy stored in the energy storage unit in real time, and if it is determined to be below a set value, controls the supply of electrical energy generated by the renewable energy generation unit to the energy usage unit.

[0017] According to the charging system for independent power sources of the present invention, by linking renewable electric energy produced from sources such as solar power generation or wind power generation with an Energy Storage System (ESS), it is possible to provide power to electric vehicles or household electronic devices using an eco-friendly energy source.

[0018] In addition, the present invention has the advantage of being able to adjust the output capacity of the ESS according to the purpose of use and needs by configuring a charging system in which a charger for charging electric vehicles and an ESS are connected in series.

[0019] In addition, the present invention has the advantage of being able to build a household independent power system without using a general commercial power source (power grid) by connecting a charger for electric vehicle charging and an ESS in series to charge the ESS.

[0020] FIG. 1 is a schematic diagram showing the configuration of a charging system for an independent power source according to one embodiment of the present invention.

[0021] FIG. 2 is a conceptual diagram illustrating, in an exemplary manner, the operation of a charging system that can supply power independently without using a commercial power source by utilizing the independent power source charging system shown in FIG. 1.

[0022] Hereinafter, a detailed description of preferred embodiments of the present invention will be given with reference to the accompanying drawings. In describing the present invention below, if it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the essence of the present invention, such detailed description will be omitted.

[0023] Embodiments according to the concept of the present invention may be subject to various modifications and may take various forms; therefore, specific embodiments are illustrated in the drawings and described in detail in this specification or application. However, this is not intended to limit the embodiments according to the concept of the present invention to specific disclosed forms, and it should be understood that they include all modifications, equivalents, and substitutions that fall within the spirit and scope of the present invention.

[0024] When it is stated that one component is "connected" or "joined" to another component, it should be understood that while it may be directly connected or joined to that other component, there may also be other components in between.

[0025] On the other hand, when it is stated that one component is "directly connected" or "directly coupled" to another component, it should be understood that no other component exists in between. Other expressions describing the relationship between components, such as "between" and "exactly between," or "adjacent to" and "directly adjacent to," should be interpreted in the same way.

[0026] The terms used herein are merely for describing specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as “comprising” or “having” are intended to specify the existence of the described features, numbers, steps, actions, components, parts, or combinations thereof, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0027] FIG. 1 is a schematic diagram showing the configuration of a charging system for an independent power source according to one embodiment of the present invention, and FIG. 2 is a conceptual diagram exemplifying the operation of a charging system that can supply power independently without using a commercial power source by using the charging system for an independent power source.

[0028] As shown in the drawing, the charging system (100) for an independent power source of the present invention may be configured to include a new and renewable energy generation unit (110), an energy storage unit (120), a charging unit (130), and a control unit (140).

[0029] The renewable energy generation unit (110), with reference to FIG. 2, can generate electric energy through eco-friendly power generation facilities such as solar power generation and wind power generation. In addition, although not shown, eco-friendly electric energy can be generated through various power generation facilities such as geothermal power generation and piezoelectric elements in addition to solar power generation and wind power generation.

[0030] The electrical energy generated through the renewable energy generation unit (110) can be stored in the energy storage unit (120). The energy storage unit (120) can store the electrical energy generated through the renewable energy generation unit (110) without wasting it, thereby enabling efficient energy consumption and stable power supply.

[0031] This energy storage unit (120) may be configured as an Energy Storage System (ESS). This energy storage system utilizes existing ESS technology, and a detailed description thereof is omitted.

[0032] The charging unit (130) is connected to the energy usage unit (200) and can supply electrical energy stored in the energy storage unit (120) to the energy usage unit (200). As shown in the drawing, the energy usage unit (200) may be configured to include an electric vehicle (210) that can be charged using electrical energy and a household load (210), such as various electronic devices used in the home.

[0033] In particular, the charging unit (130) may be configured as a DC / DC converter to enable voltage adjustment, for example, of the value of the energy output from the energy storage unit (120).

[0034] In addition, as shown in the drawing, by connecting the energy storage unit (120) and the charging unit (130) in series, the output capacity can be reduced according to the various voltage requirements of the energy usage unit (200), thereby enabling efficient energy usage, and an independent charging system can be implemented by not using a general phase power supply (power grid).

[0035] The control unit (140) can monitor or control the configuration of the renewable energy generation unit (110), energy storage unit (120), and charging unit (130) to control the operation of the independent power charging system (100) and supply electric energy to the energy usage unit (200).

[0036] The control unit (140) can monitor the power used in the energy usage unit (200) and control the charging unit (130) according to the energy capacity required by the energy usage unit (200).

[0037] In particular, the control unit (140) can monitor the amount of energy stored in the energy storage unit (120) in real time, and if it is determined to be below a set capacity, it can control the supply of electric energy generated from the renewable energy generation unit (110) to the energy usage unit (200), or if the energy storage unit (120) is fully charged, it can control the supply of electric energy to the energy storage unit (120) to prevent overcharging.

[0038] The content of the present invention has been described with reference to the embodiments illustrated in the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims.

[0039] The independent power charging system of the present invention can be applied as an eco-friendly energy source for electric vehicles or household electronic devices by linking renewable electric energy produced from sources such as solar power generation or wind power generation with an Energy Storage System (ESS).

[0040] In particular, by configuring a charging system in which a charger for electric vehicles and an ESS are connected in series, the output capacity of the ESS can be adjusted according to the intended use, and the ESS can be charged by connecting the charger for electric vehicles and the ESS in series, so it is useful not only for not using a general commercial power supply (power grid) but also for building an independent power system for home use.

Claims

1. In a charging system for an independent power source, A renewable energy generating unit that generates electrical energy, including at least one of solar power generation or wind power generation; An energy storage unit that stores electrical energy generated through the above-mentioned renewable energy generation unit; A charging unit that supplies electrical energy stored in the energy storage unit above to an energy usage unit including an electric vehicle and a household load; and It is configured to include a control unit that controls each component to supply electrical energy to the energy user by controlling the operation of the above-mentioned charging system. An independent power charging system characterized in that the energy storage unit and the charging unit are connected in series.

2. In Paragraph 1, An independent power charging system characterized by the above energy storage unit comprising an Energy Storage System (ESS).

3. In Paragraph 1, The charging unit described above is characterized by being composed of a DC / DC converter capable of adjusting the output voltage, thereby forming a charging system for an independent power source.

4. In Paragraph 3, The above control unit is, An independent power supply charging system characterized by monitoring the power used in the energy-using unit and controlling the charging unit according to the amount of energy required by the energy-using unit.

5. In Paragraph 1, An independent power charging system characterized by the above-described control unit monitoring the amount of energy stored in the energy storage unit in real time, and controlling the supply of electrical energy generated by the renewable energy generation unit to the energy usage unit when it is determined to be below a set value.

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