Zhendong Ji1, Shuzheng Wang2, Yichao Sun3, Jianhua Wang4, Jianfeng
Zhao4
Intelligent Automation & Soft Computing, Vol.25, No.4, pp. 715-723, 2019, DOI:10.31209/2019.100000075
Abstract The disadvantages in power system with traditional industrial frequency
transformer can be resolved by Solid State Transformer (SST). Cascaded SST
can be transformerless connected to the high voltage grid. However, the output
performance and reliability of cascaded SST are seriously influenced by DC
voltage balancing problem which exists in cascaded configuration. In this paper,
a DC voltage balancing strategy based on active vector correction is proposed.
This strategy is characterized by on-demand active power and equal reactive
power among modulars. Then, a quantitative analysis method is presented to
validate active power adjusting ability of the traditional and the proposed
strategies.… More >
Login
Register
