链式DSTATCOM的电弧炉补偿控制策略

链式配电静止同步补偿器（Distribution Static Synchronous Compensator-DSTATCOM）因其快速响应特性而成为电弧炉负荷动态补偿的理想选择。提出了三角接线链式DSTATCOM的分相瞬时电流控制策略，并在构建基于现场录波数据的电弧炉补偿系统仿真平台基础上，对控制策略进行了数字仿真和实时数字仿真研究，给出了数字仿真和实时数字仿真结果。仿真结果表明链式DSTATCOM结合所提出的控制策略可以解决电弧炉的不平衡负荷补偿及谐波滤波控制问题，以达到改善系统电能质量的目的。
Abstract: Due to the fast response feature, DSTATCOM is becoming the major choice for electric arc furnace (EAF) compensation. An instantaneous current control strategy for delta-connected chain circuit DSTATCOM is proposed. Based on the EAF simulation platform constructed with recorded field data, the control strategy is studied with digital simulation and real-time digital simulation. The simulation results given in the paper show that the proposed control strategy can effectively compensate the unbalanced and harmonic load current of electric arc furnace.
关键词：电弧炉，电能质量，配电静止同步补偿器，瞬时电流控制
Keywords: Electric arc furnace, power quality, DSTATCOM, instantaneous current control