Photovoltaic power-energy storage integrated off-grid system and multistage optimization control method thereof
An optimized control and photovoltaic system technology, applied in flexible AC transmission systems, photovoltaic power generation, energy storage, etc., can solve the problems of unstable power supply quality of renewable energy, failure to achieve maximum utilization of clean energy, and reduce photovoltaic system methods, etc., to achieve Improve energy conversion efficiency, prevent heat damage, and improve utilization
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[0036] The present invention will be further described below in conjunction with accompanying drawing.
[0037] Such as figure 1 as shown, figure 1 It is the topological structure of the off-grid system with photovoltaic storage integration of the present invention, the system includes a photovoltaic system, a battery energy storage system, an electric load, an anti-backflow device, a DC load switch, an AC load switch, a DC / AC converter, a DC bus and AC bus.
[0038] Electrical loads include DC loads and AC loads. Wherein, the DC load includes the load directly connected to the DC bus and the load connected to the DC bus through a DC load switch. AC loads include loads directly connected to the AC bus and loads connected to the AC bus through an AC load switch
[0039] The national standard "Code for Design of Power Supply and Distribution System" divides the power system load into three levels, and the requirements are relatively broad. In practical application, the load...
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