Energy storage system based on series bidirectional converter and its control method
A bidirectional converter and energy storage system technology, which is applied to the energy storage system and its control field based on series bidirectional converters, can solve the problems of unregenerated electric energy utilization, non-compliance with energy saving and consumption reduction, and high cost, and achieve reliable absorption and energy saving. The effect of releasing, reducing voltage stress and ensuring safe operation
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[0023] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0024] Such as figure 1 Shown is the structural block diagram of the energy storage system based on the series bidirectional converter of the present invention, including the grid side interface circuit 2 of the energy storage system, the first bidirectional DC / DC converter 3, the second bidirectional DC / DC converter 4, the first The supercapacitor group module 5 and the second supercapacitor group module 6, the low voltage side of the first bidirectional DC / DC converter 3 is connected to the first supercapacitor group module 5, and the low voltage side of the second bidirectional DC / DC converter 4 is connected The second supercapacitor bank module 6, the high-voltage sides of the first bidirectional DC / DC converter 3 and the second bidirectional DC / DC converter 4 both include a first end and a second end, and the traction network 1 passes ...
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