用静态同步补偿器缓解电弧炉电压闪变

2006 CES/IEEE 5th International Power Electronics and Motion Control Conference Pub Date : 2006-08-01 DOI:10.1109/IPEMC.2006.4778240

Y.F. Wang, J.G. Jiang, L. Ge, X.J. Yang

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引用次数: 14

摘要

基于改进的非线性时变电弧电阻模型，在Matlab/电力系统块集中建立了电弧炉供电系统模型，用于研究电弧炉电压闪变问题。提出了一种采用静态同步补偿器(STATCOM)的柔性供电策略，以减轻电弧炉产生的电压闪变。利用瞬时无功功率理论提取电炉冲击负荷的瞬时无功电流。然后利用PWM技术进行电流跟踪反馈控制，使STATCOM产生所需的无功电流。仿真结果表明，该策略有效地抑制了电源电压闪变，实现了柔性电源的目标

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Mitigation of Electric Arc Furnace Voltage Flicker Using Static Synchronous Compensator

Based on the improved model of nonlinear time-varying electric arc resistance, the power supply system model of electric arc furnace (EAF) is established in Matlab/power system blockset, which is used to investigate voltage flicker problem. A flexible power supply strategy is presented, in which static synchronous compensator (STATCOM) is applied to mitigate the voltage flicker produced by EAF. The instantaneous reactive current of EAF impact load is extracted using instantaneous reactive power theory. Then PWM technology is used for current tracing feedback control to make STATCOM produce the required reactive current. The results of simulation indicate that the strategy is valid to mitigate power supply voltage flicker, and the objective of flexible power supply is achieved

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2006 CES/IEEE 5th International Power Electronics and Motion Control Conference

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