基于三電平直接瞬時電流分相控制的DSTATCOM裝置及其應用

基于三電平直接瞬時電流分相控制的DSTATCOM 裝置及其應用:一般的δ 角控制方式響應速度慢且易發(fā)生過流，不能滿足配電靜止同步補償器(DSTATCOM)的運行要求。
本文提出了直接瞬時電流分相控制的策略，使得三電平DSTATCOM 的響應速度顯著提高，并具有很強的抗擾能力。DSTATCOM 工業(yè)樣機應用于電弧爐補償，抑制電壓閃變的效果非常明顯，同時提高了冶煉效率。
Abstract: General δ-control method responses slowly and suffers overcurrent. Therefore, it does not satisfy the operating requirements of distribution static synchronous compensator (DSTATCOM). In this paper, a novel control strategy
is proposed, named direct instant current control for individual phase, which improves the response of three-level
DSTATCOM significantly and has strong capability of withstanding perturbations. A DSTATCOM has been commissioned
for electric arc furnace compensation. It eliminates majority of voltage flickers and meanwhile increases the steel-producing efficiency.
關鍵詞：配電靜止同步補償器，直接瞬時電流分相控制，δ 角控制
Keywords: DSTATCOM, direct instant current control, δ-control