FAN JIANJUN. Study on Voltage Balance Control Strategy at DC Side of Cascaded STATCOM. [J]. Power capacitor & reactive power compensation, 2018, 39(3): 58-63.
FAN JIANJUN. Study on Voltage Balance Control Strategy at DC Side of Cascaded STATCOM. [J]. Power capacitor & reactive power compensation, 2018, 39(3): 58-63. DOI: 10.14044/j.1674-1757.pcrpc.2018.03.011.
the cascade static synchronous compensator(STATCOM)has found wide and wide application and assurance of voltage balance at DC side in each H bridge sub-model unit in the STATCOM is the basic premise to maintain the stability of the entire system.In this paper
as for the issue of balance control of voltage at DC side of cascaded STATCOM
the basic principle of cascaded STATCOM is firstly and briefly introduced.Then
an improved sorting balancing control strategy is proposed.The status feedback control of H bridge sub-model is introduced on the basis of traditional sorting mechanism
which reduces remarkably the operation times of the switching elements and thereby reduces switching loss and extends its operation life while assuring the capacitive voltage of each H-bridge module unit within reasonable fluctuation range.Finally
the effectiveness of the control strategy is verified by simulation and experiment.
关键词
静止同步补偿器(STATCOM)排序H桥均压控制
Keywords
static synchronous compensator(STATCOM)sortingH-bridgegrading control