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首页> 外文期刊>IEEE Transactions on Industrial Electronics >A Combination of Shunt Hybrid Power Filter and Thyristor-Controlled Reactor for Power Quality
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A Combination of Shunt Hybrid Power Filter and Thyristor-Controlled Reactor for Power Quality

机译:并联混合功率滤波器和晶闸管控制电抗器的组合,可提高电能质量

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摘要

This paper proposes a combined system of a thyristor-controlled reactor (TCR) and a shunt hybrid power filter (SHPF) for harmonic and reactive power compensation. The SHPF is the combination of a small-rating active power filter (APF) and a fifth-harmonic-tuned $LC$ passive filter. The tuned passive filter and the TCR form a shunt passive filter (SPF) to compensate reactive power. The small-rating APF is used to improve the filtering characteristics of SPF and to suppress the possibility of resonance between the SPF and line inductances. A proportional–integral controller was used, and a triggering alpha was extracted using a lookup table to control the TCR. A nonlinear control of APF was developed for current tracking and voltage regulation. The latter is based on a decoupled control strategy, which considers that the controlled system may be divided into an inner fast loop and an outer slow one. Thus, an exact linearization control was applied to the inner loop, and a nonlinear feedback control law was used for the outer voltage loop. Integral compensators were added in both current and voltage loops in order to eliminate the steady-state errors due to system parameter uncertainty. The simulation and experimental results are found to be quite satisfactory to mitigate harmonic distortions and reactive power compensation.
机译:本文提出了晶闸管控制电抗器(TCR)和并联混合功率滤波器(SHPF)的组合系统,用于谐波和无功功率补偿。 SHPF是小功率有源功率滤波器(APF)和第五谐波调谐的$ LC $无源滤波器的组合。调谐的无源滤波器和TCR形成并联无源滤波器(SPF)以补偿无功功率。小功率APF用于改善SPF的滤波特性,并抑制SPF与线路电感之间发生谐振的可能性。使用比例积分控制器,并使用查找表提取触发阿尔法来控制TCR。开发了用于电流跟踪和电压调节的APF非线性控制。后者基于解耦控制策略,该策略考虑了将受控系统分为内部快速回路和外部慢速回路。因此,将精确的线性化控制应用于内部环路,并将非线性反馈控制律用于外部电压环路。在电流和电压环路中均添加了积分补偿器,以消除由于系统参数不确定性引起的稳态误差。仿真和实验结果被发现在减轻谐波失真和无功补偿方面非常令人满意。

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