Energy storage battery cabin for supplying power to auxiliary equipment by utilizing photovoltaic power generation

Abstract

The utility model relates to an energy storage battery cabin for supplying power to auxiliary equipment by utilizing photovoltaic power generation, which is characterized in that a photovoltaic panel is arranged at the top or on the side surface of the energy storage battery cabin, and power generation conversion equipment is arranged in the energy storage battery cabin; the power generation conversion equipment comprises a controller, a charger, a rectifier, a converter, a static switch, a control system, a first switch, a second switch and a bypass switch; the photovoltaic panel is connected with the controller, and the controller is connected with the storage battery through the second switch; the UPS input side is connected with the first switch, the first switch is sequentially connected with the rectifier, the converter and the static switch, and the static switch is connected with the UPS output side; a storage battery of the UPS is connected with the output end of the rectifier through the charger; the bypass switch is connected with the input end of the rectifier and the static switch; the control system is connected with the first switch, the controller, the second switch, the rectifier, the converter, the static switch and the charger. Through photovoltaic power generation at the top of the battery cabin, the use of commercial power is reduced, so that the operation cost of the energy storage power station is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of new energy, and in particular relates to an energy storage battery cabin which utilizes photovoltaic power generation to power auxiliary equipment. Background Art

[0002] With the development of new energy and the construction of new power systems, more and more energy storage systems have been built. When the energy storage system is stationary, the control system, thermal management system and other auxiliary equipment still need to operate normally, which consumes a lot of electricity, resulting in high operating costs.

[0003] The battery compartments in the energy storage system occupy a large amount of land and are not fully utilized; therefore, it becomes very important and necessary to utilize the top space of the energy storage battery compartment at low cost and reduce the operating cost of the energy storage system. Utility Model Content

[0004] The purpose of the utility model is to provide an energy storage battery compartment that uses photovoltaic power generation to power auxiliary equipment. Photovoltaic panels are installed on the top of the energy storage battery compartment, and photovoltaic power generation is controlled by the DC / DC system of the UPS to supply auxiliary power to the battery compartment. When there is no photovoltaic power generation, it is converted to city power to supply auxiliary power to the battery compartment to ensure system reliability. When the city power is off, photovoltaic power generation can also be used to charge the UPS. Photovoltaic power generation on the top of the battery compartment reduces the use of city power, thereby reducing the operating cost of the energy storage power station.

[0005] The utility model provides an energy storage battery compartment that uses photovoltaic power generation to power auxiliary equipment. The energy storage battery compartment is equipped with a UPS, and the UPS includes a battery; a photovoltaic panel is installed on the top or side of the energy storage battery compartment, and a power generation conversion device is installed in the energy storage battery compartment. The power generation conversion device includes a controller, a charger, a rectifier, a converter, a static switch, a control system, a first switch, a second switch, and a bypass switch;

[0006] The photovoltaic panel is connected to the controller, and the controller is connected to the battery through the second switch; the input side of the UPS is connected to the first switch, and the first switch is connected to the rectifier, the converter, and the static switch in sequence, and the static switch is connected to the output side of the UPS; the battery is connected to the output end of the rectifier through the charger; the bypass switch is connected to the rectifier input end and the static switch; the control system is connected to the first switch, the controller, the second switch, the rectifier, the converter, the static switch, and the charger.

[0007] Furthermore, a photovoltaic panel installation interface is reserved on the top of the energy storage battery compartment for installing the photovoltaic panel.

[0008] Furthermore, a photovoltaic panel installation interface is reserved on the side of the energy storage battery compartment for installing the photovoltaic panel.

[0009] Furthermore, the photovoltaic panel adopts multiple panels or a single panel.

[0010] Furthermore, the first switch and the second switch are contactor switches.

[0011] Furthermore, a charge and discharge control switch is provided inside the battery.

[0012] By means of the above scheme, the energy storage battery compartment that uses photovoltaic power generation to power auxiliary equipment has the following technical effects:

[0013] 1) The space on top of the battery compartment can be utilized to install photovoltaic panels, generate electricity using light, and provide economic benefits for energy storage power stations.

[0014] 2) Photovoltaic panels can be installed and fixed on the top of the battery compartment, and photovoltaic power generation can be used to generate electricity. The electricity generated can be directly used for the auxiliary equipment of the control system in this compartment, reducing the cost of photovoltaic construction and saving installation costs.

[0015] 3) When there is no mains electricity, the photovoltaic battery on the top of the battery compartment can be used to charge the auxiliary equipment of the battery compartment or to charge the battery.

[0016] 4) It can replace the traditional UPS to achieve uninterrupted power supply for the DC cabin control system.

[0017] 5) The specifications of photovoltaic panels and batteries can be selected according to actual needs.

[0018] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of an energy storage battery compartment for powering auxiliary equipment using photovoltaic power generation according to the utility model.

[0020] Markings in the figure:

[0021] 1- Photovoltaic panel; 2- Controller; 3- Battery; 4- Charger; 5- Rectifier; 6- Converter; 7- Static switch; 8- Control system; 9- First switch; 10- Second switch; 11- Bypass switch. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] Ginseng Figure 1As shown, this embodiment provides an energy storage battery compartment that uses photovoltaic power generation to power auxiliary equipment. The energy storage battery compartment is equipped with a UPS, and the UPS includes a battery 3; a photovoltaic panel 1 is installed on the top or side of the energy storage battery compartment, and a power generation conversion device is installed in the energy storage battery compartment. The power generation conversion device includes a controller 2, a charger 4, a rectifier 5, a converter 6, a static switch 7, a control system 8, a first switch 9, a second switch 10, and a bypass switch 11; the photovoltaic panel 1 is connected to the controller 2, and the controller 2 is connected to the battery 3 through the second switch 10; the input side of the UPS is connected to the first switch 9 is connected, the first switch 9 is connected to the rectifier 5, the converter 6, and the static switch 7 in sequence, and the static switch 7 is connected to the output side of the UPS; the battery 3 is connected to the output end of the rectifier 5 through the charger 4; there is a charge and discharge control switch inside the battery, when the battery voltage is higher than the charge limit voltage or lower than the discharge limit voltage, the control system 8 automatically controls to disconnect the charge and discharge control switch; the bypass switch 11 is connected to the input end of the rectifier 5 and the static switch 7; the control system 8 is connected to the first switch 9, the controller 2, the second switch 10, the rectifier 5, the converter 6, the static switch 7, and the charger 4.

[0024] When in use, when there is no photovoltaic power generation or the photovoltaic power generation voltage is low: the control system 8 controls the first switch 9 to close, controls the second switch 10 to open, uses the mains power to charge the UPS and outputs it to the auxiliary equipment for power supply; when there is photovoltaic power generation and the voltage meets the requirements but the power is lower than the load: the control system 8 controls the first switch 9 to close, controls the second switch 10 to close, uses photovoltaic power generation and the mains power to power the auxiliary equipment at the same time; when there is photovoltaic power generation, the voltage meets the requirements but the power is higher than the load: the control system 8 controls the first switch 9 to open, controls the second switch 10 to close, uses photovoltaic power generation to charge the UPS and outputs it to the auxiliary equipment for power supply. When the battery voltage is higher than the charging voltage, the control system 8 controls the internal charge and discharge control switch of the battery to open to avoid overcharging of the battery. An uninterruptible power supply (UPS) can be provided to the battery compartment.

[0025] The photovoltaic panel installed on the top of the battery compartment generates electricity, and the photovoltaic voltage and power are collected through the controller 2. When the photovoltaic voltage is higher than the allowable voltage or the power is greater than the load power consumption, the controller automatically controls to cut off part of the photovoltaic panel power generation or disconnects the photovoltaic panel 1 and the battery 3 circuit to protect the system from reverse power transmission.

[0026] In this embodiment, a photovoltaic panel installation interface is reserved on the top of the energy storage battery compartment for installing the photovoltaic panel 1 and generating electricity using the photovoltaic panel.

[0027] In this embodiment, a photovoltaic panel installation interface is reserved on the side of the energy storage battery compartment for installing the photovoltaic panel 1 and generating electricity using the photovoltaic panel.

[0028] In this embodiment, the photovoltaic panel 1 uses multiple panels or a single panel. The photovoltaic panel 1 can adjust the angle as needed. The size and power generation capacity of the photovoltaic panel are determined according to the equipment area and power load.

[0029] In this embodiment, the first switch 9 and the second switch 10 are contactor switches, which are used to control the closing of the switches to provide mains power supply and / or photovoltaic power supply. When there is photovoltaic power generation and the voltage meets the requirements, the photovoltaic power generation can be automatically controlled to power the auxiliary equipment. When there is no photovoltaic power generation or the voltage does not meet the requirements, the mains power can be automatically controlled to power the auxiliary equipment. When the photovoltaic power generation is insufficient, the mains power and photovoltaic power generation can be automatically controlled to power the auxiliary equipment at the same time.

[0030] In other examples, the battery compartment may also be replaced with a PCS all-in-one or other prefabricated compartment.

[0031] The energy storage battery cabin that uses photovoltaic power generation to power auxiliary equipment has the following technical effects:

[0032] 1) The space on top of the battery compartment can be utilized to install photovoltaic panels, generate electricity using light, and provide economic benefits for energy storage power stations.

[0033] 2) Photovoltaic panels can be installed and fixed on the top of the battery compartment, and photovoltaic power generation can be used to generate electricity. The electricity generated can be directly used for the auxiliary equipment of the control system in this compartment, reducing the cost of photovoltaic construction and saving installation costs.

[0034] 3) When there is no mains electricity, the photovoltaic battery on the top of the battery compartment can be used to charge the auxiliary equipment of the battery compartment or to charge the battery.

[0035] 4) It can replace the traditional UPS to achieve uninterrupted power supply for the DC cabin control system.

[0036] 5) The specifications of photovoltaic panels and batteries can be selected according to actual needs.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. An energy storage battery compartment that uses photovoltaic power generation to power auxiliary equipment, characterized in that: The energy storage battery compartment is equipped with a UPS, and the UPS includes a storage battery (3); a photovoltaic panel (1) is installed on the top or side of the energy storage battery compartment, and a power generation conversion device is installed in the energy storage battery compartment, and the power generation conversion device includes a controller (2), a charger (4), a rectifier (5), a converter (6), a static switch (7), a control system (8), a first switch (9), a second switch (10), and a bypass switch (11); The photovoltaic panel (1) is connected to the controller (2), and the controller (2) is connected to the storage battery (3) through the second switch (10); the input side of the UPS is connected to the first switch (9), and the first switch (9) is connected to the rectifier (5), the converter (6), and the static switch (7) in sequence, and the static switch (7) is connected to the output side of the UPS; the storage battery (3) is connected to the output end of the rectifier (5) through the charger (4); the bypass switch (11) is connected to the input end of the rectifier (5) and the static switch (7); the control system (8) is connected to the first switch (9), the controller (2), the second switch (10), the rectifier (5), the converter (6), the static switch (7), and the charger (4).

2. The energy storage battery compartment for powering auxiliary equipment using photovoltaic power generation according to claim 1 is characterized in that: A photovoltaic panel installation interface is reserved on the top of the energy storage battery compartment for installing the photovoltaic panel (1).

3. The energy storage battery compartment for powering auxiliary equipment using photovoltaic power generation according to claim 1 is characterized in that: A photovoltaic panel installation interface is reserved on the side of the energy storage battery compartment for installing the photovoltaic panel (1).

4. The energy storage battery compartment for powering auxiliary equipment using photovoltaic power generation according to claim 1, characterized in that: The photovoltaic panel (1) is a plurality of panels or a single panel.

5. The energy storage battery compartment for powering auxiliary equipment using photovoltaic power generation according to claim 1, characterized in that: The first switch (9) and the second switch (10) are contactor switches.

6. The energy storage battery compartment for powering auxiliary equipment using photovoltaic power generation according to claim 1, characterized in that: A charge and discharge control switch is provided inside the storage battery (3).

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