模块化可控负荷电流扰动发生装置

Modularization of Controllable Load Current Disturbance Generator

提出一种新颖的模块化可控负荷电流扰动发生装置。在分析装置原理的基础上,对系统中典型的电流质量现象进行了多目标控制研究,以有效模拟谐波电流发生、电流波动和负荷电流不平衡等。基于装置功能要求,设计了装置投运和退出框图以及实验样机硬件控制框图。为进一步验证装置的可行性,建立了400V/100kVA低压样机,对谐波电流、电流波动、负荷不平衡调节等功能进行了原理性验证。

This paper puts forward a novel controllable load current disturbance generator and analyzes the principle of the generator.According to the typical phenomenon of current quality,the multi-objective control strategy is proposed,it can effectively simulate the harmonic currents and the current fluctuations.Basing on functional requirements,a block diagram about putting into operation and withdrawing from operation is established, and a hardware control block diagram of the experimental prototype is designed.Finally, a 400 V/100 kVA prototype and the function tests of harmonic currents, current fluctuation and unbalance current are implemented.