10kv high voltage energy storage equipment

Is a 10 kv/1 mw high-capacity PCs scheme correct?

On this basis, a 10 kV/1 MW high-capacity PCS prototype was designed. Additionally, by simulation and experiment, we proved the correctness of the PCS scheme. The topology and control strategy proposed in this paper can provide cases and technical support for the subsequent promotion and application of new energy and power station energy storage.

Is large-scale energy storage a good idea?

Large-scale energy storage is favorable currently. The capacity expansion needs to be realized by the parallel connection of multiple low-voltage small-capacity PCSs and connected to a medium- or high-voltage power grid through the transformer. The connection would lead to the problems of low efficiency, high cost and unnecessary land occupation.

Can a transformer-less high-voltage PCs be used in China?

In China, Shanghai Jiaotong University and China Southern Power Grid proposed a transformer-less high-voltage PCS in 2014. A set of 10 kV/2 MW/2 MWh device prototypes has been developed and applied in Baoqing energy storage power station of the China Southern Power Grid .

How many kV is a PCs module?

The source drain voltage of the device is V ds = 1.2 kV, and 15 modules are used for each phase in series for 18 kV, meeting the insulation requirements of the 10 kV voltage level. The rated capacity of each module is 23.8 kW, and the rated through current is about 34 A, with a sufficient through current margin. Figure 15. PCS prototype.