Photovoltaic electric energy storage system and method
A technology for electrical energy storage system and photovoltaic power generation equipment, which is applied in the fields of photovoltaic power generation, energy storage, electrical components, etc., can solve the problems of low utilization efficiency of photovoltaic power generation and difficult disassembly, etc., to improve flexibility and operability, and improve matching. The effect of improving the efficiency of electric energy utilization
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Embodiment 1
[0037] Such as Figure 1-Figure 3 As shown, the first aspect of this embodiment provides a photovoltaic electric energy storage system, which is used to convert solar energy in nature into electric energy for storage and utilization, thereby improving the protection of the environment. The photovoltaic energy storage system mainly includes: photovoltaic power generation equipment, energy storage modules and controllers. Photovoltaic power generation equipment is composed of multiple solar panels for converting light energy into electrical energy; the energy storage module is composed of multiple energy storage structural units connected in series and / or in parallel, and the energy storage structural unit is composed of multiple battery cells in series and / or The energy storage module is connected in parallel, and the energy storage module is easily detachably connected to the box; the controller is used to monitor the voltage value of the energy storage module, specifically to...
Embodiment 2
[0057] Such as Figure 1-Figure 3 As shown, the first aspect of this embodiment provides a photovoltaic electric energy storage system, which differs from the first embodiment in that the photovoltaic electric energy storage system further includes a DC load device connected to the energy storage module.
[0058] Preferably, for small photovoltaic projects or for electronic products such as mobile phones and tablets; battery cars, electric vehicles and other mobile power supplies, since these mobile power supplies are all DC load devices, because the inverter does not need to convert the current, it can be directly Connect the DC load device with the energy storage module, and monitor the voltage value of the DC load device through the controller to prevent the DC load device from being overcharged. It is worth noting that the controller in this embodiment is a one-way controller, that is to say, in this embodiment, the current can only flow into the energy storage module alon...
Embodiment 3
[0066] This embodiment provides a photovoltaic electric energy storage system, which differs from the first embodiment in that the photovoltaic electric energy storage system further includes a DC load device connected to a controller.
[0067] Preferably, the DC load device can be directly connected to the controller, the energy storage module is connected to the photovoltaic power generation equipment, and the voltage value of the energy storage module is monitored by the controller. In this embodiment, the controller is a two-way controller, that is, That is to say, the current generated by the photovoltaic power generation equipment can flow into the controller, and then flow into the energy storage module from the controller; when the weather is bad (such as cloudy, rainy) or there is no light at night, the photovoltaic power generation equipment does not generate electricity. The current in the energy storage module can also flow into the controller, and then flow into th...
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