鏈式DSTATCOM的電弧爐補償控制策略

鏈式配電靜止同步補償器（Distribution Static Synchronous Compensator-DSTATCOM）因其快速響應特性而成為電弧爐負荷動態(tài)補償?shù)睦硐脒x擇。提出了三角接線鏈式DSTATCOM的分相瞬時電流控制策略，并在構(gòu)建基于現(xiàn)場錄波數(shù)據(jù)的電弧爐補償系統(tǒng)仿真平臺基礎上，對控制策略進行了數(shù)字仿真和實時數(shù)字仿真研究，給出了數(shù)字仿真和實時數(shù)字仿真結(jié)果。仿真結(jié)果表明鏈式DSTATCOM結(jié)合所提出的控制策略可以解決電弧爐的不平衡負荷補償及諧波濾波控制問題，以達到改善系統(tǒng)電能質(zhì)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.
關鍵詞：電弧爐，電能質(zhì)量，配電靜止同步補償器，瞬時電流控制
Keywords: Electric arc furnace, power quality, DSTATCOM, instantaneous current control