In this paper, the structure, modeling, parameter design, and control method are proposed for a new hybrid structure of a static var compensator in parallel with a hybrid active power filter (SVC//HAPF). The SVC part of the SVC//HAPF is used to dynamically compensate the reactive power. And, the HAPF part is used to provide harmonic power and small amount of reactive power compensation. Due to the large fundamental voltage drop on coupling the LC part, the active inverter part of the SVC//HAPF has low voltage rating. Meanwhile, the parallel-connected SVC acts as a current divider to reduce the active inverter current. Therefore, the proposed SVC//HAPF shows the great promise in compensating harmonic current and wide-range reactive power with a low (both) voltage and current rating active inverter part. To show the advantages of the proposed SVC//HAPF, simulation comparisons among the active power filter (APF), HAPF, SVC in series with HAPF (SVC-HAPF), and the proposed SVC//HAPF are provided. Finally, experimental results based on the laboratory-scaled hardware prototype are given to show the validity of the SVC//HAPF.

中文翻译：

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中压重载补偿静态无功补偿器与混合有源电力滤波器（SVC//HAPF）的混合结构


本文提出了静态无功补偿器与混合有源电力滤波器（SVC//HAPF）并联的新型混合结构的结构、建模、参数设计和控制方法。 SVC//HAPF的SVC部分用于动态补偿无功功率。并且，HAPF部分用于提供谐波功率和少量无功功率补偿。由于耦合 LC 部分的基波压降较大，SVC//HAPF 的有源逆变器部分的额定电压较低。同时，并联的SVC作为分流器，降低逆变器有功电流。因此，所提出的 SVC//HAPF 在利用低（双）电压和电流额定值的有源逆变器部分补偿谐波电流和宽范围无功功率方面显示出巨大的前景。为了展示所提出的 SVC//HAPF 的优点，提供了有源电力滤波器 (APF)、HAPF、SVC 与 HAPF 串联 (SVC-HAPF) 以及所提出的 SVC//HAPF 之间的仿真比较。最后，给出了基于实验室规模硬件原型的实验结果，证明了SVC//HAPF的有效性。