用于不对称补偿的STATCOM的解耦控制策略

摘要

The Large capacity surge load caused by on the power grid power quality hazards,So Grid voltage and current produce harmonics and asymmetric,Endanger the safety of users,Negative sequence voltage in grid will to make conventional STATVOM overcurrent.In this paper,a decoupling control strategy of STATCOM Applies to symmetric or asymmetric compensation.Gives the a commutation links in each of the DC capacitor voltage balance control method And through the STATCOM bulk engineering applications to verify the effectiveness and practicality of the proposed control strategy.And through the STATCOM bulk engineering applications to verify the effectiveness and practicality of the proposed control strategy.%大容量冲击性负荷对电网造成电能质量危害,使电网电压和电流产生谐波和不对称,危及用户安全,电网中的负序电压还会使常规STATVOM产生过流.论文提出了一种适用于对称或非对称补偿时STATCOM的解耦控制策略,给出了一种对变流链中各直流电容电压实施平衡控制的方法,并通过STATCOM的批量工程应用验证了所提出的控制策略的有效性和实用性.