摘要
从理论上分析了单相电压源PWM变流器输入电流的谐波特性。在此基础上进一步探讨了变流器功率因数、输入电流总谐波畸变率以及等效干扰电流等与谐波分布之间的关系。最后分析了多重化变流器的输入电流谐波特性,证实多重化的确是改善变流器输入电流品质的有效手段。
The harmonic characteristic of input current in single-phase voltage source PWM converter is analyzed theoretically, The relationship among input current harmonic distribution and power factor, total harmonic distortion, psophometric interference current, are discussed. The harmonic characteristic of multi-converters is analyzed, and it is proved that multi-converters is an effective way to improve the input current harmonic characteristic of PWM converter.
出处
《变流技术与电力牵引》
2006年第5期17-22,45,共7页
Converter Technology & Electric Traction
关键词
PWM变流器
谐波分析
总谐波畸变率
等效干扰电流
多重化
PWM converter
harmonic analysis
total harmonic distortion
psophometric interference current
multi-converters
