摘要
提出了一种基于三相电压型PWM整流器结构的功率电压电流三闭环无功补偿发生器,可以实现对负载和系统中无功功率进行实时补偿,提高系统运行的功率因数,改善电能质量。分析了该无功补偿发生器SVG的电路结构和数学模型、电流检测方法,以及三闭环控制的构成。通过仿真验证了该SVG系统的可行性。
A reactive power compensation generator with a three-closedloop including power-voltage-current three factors is proposedbased on three phase voltage source PWM rectifier structure,which can achieve real-time compensation for reactive power in the load and system so that it improves the power factor of the system and the power quality.The circuit structure and the mathematical model of the reactive power compensation generator SVG,the current detection method,and the structure of the three closed-loop control are analyzed. The feasibility of the SVG system is verified by simulation.
出处
《仪表技术》
2016年第5期11-14,共4页
Instrumentation Technology
关键词
三相电压型PWM整流器
无功补偿
三闭环控制
three phase voltage source PWM rectifier
reactive power compensation
three closed-loop control
