摘要
分析了三相四桥臂开关功率放大器的原理及其在继电保护测试中的应用。该拓扑利用第四桥臂来调节中线电流,实现了三相之间的独立实验结果表明该电路结构简单、容易实现调频、调幅、调相功能。
The principle of three-phase four-leg switching power amplifier and its application in relay protection test are introduced. This topology realizes the decoupling of each phase by the fourth leg to handle the neutral current. Experiment results show the structure of the circuit is simple, the amplitude, frequency and phase of each output can he regulated casily.
出处
《电源技术应用》
2003年第3期20-22,共3页
Power Supply Technologles and Applications
基金
浙江省院士基金
