论文部分内容阅读
提出一种平衡不对称负荷、功率因数校正及谐波抑制的补偿装置(SVC)。由于SVC装置的运行会导致系统谐波电流的产生,因此考虑在不增加滤波器的前提下,以THD作为补偿效果的反馈,根据SVC运行特性及反馈结果对其参数进行优化调整,在补偿不对称负荷的同时减少系统谐波电流注入,产生合理的运行方式。仿真结果表明该装置可有效减少电网谐波的注入量,提高功率因数并达到平衡不对称负荷的效果。
A compensating device (SVC) is proposed to balance unbalanced load, power factor correction and harmonic suppression. Because the operation of SVC device will lead to the generation of harmonic current in the system, it is considered to take THD as the compensation effect feedback without increasing the filter, and its parameters are optimized and adjusted according to the operating characteristics of SVC and the feedback result. Symmetrical load while reducing system harmonic current injection, resulting in a reasonable mode of operation. The simulation results show that the device can effectively reduce the amount of harmonic injection, improve the power factor and achieve the balance of asymmetric load effect.