首页>
外国专利>
THREE PHASE BOOST CONVERTER TO ACHIEVE UNITY POWER FACTOR AND LOW INPUT CURRENT HARMONICS FOR USE WITH AC TO DC RECTIFIERS
THREE PHASE BOOST CONVERTER TO ACHIEVE UNITY POWER FACTOR AND LOW INPUT CURRENT HARMONICS FOR USE WITH AC TO DC RECTIFIERS
展开▼
机译：三相升压转换器，可实现单位功率因数和低输入电流谐波，可与交流至直流整流器配合使用
展开▼
页面导航
摘要
著录项
相似文献
摘要
A voltage source inverter comprises a zigzag transformer providing a neutral point. A rectifier unit comprises three single phase boost converters each connected to one of the three phases of AC power and the neutral point and comprising a bridge rectifier converting single phase AC power to DC power and using a boost inductor with a boost switch and blocking diode to develop a DC output. An inverter receives DC power and converts DC power to AC power. A link circuit is connected between each boost converter DC output and the inverter circuit and comprises a DC bus having first and second rails to provide a relatively fixed DC voltage for the inverter and a DC bus capacitance across the first and second rails to smooth voltage ripple. A switch controller controls operation of the boost switches using average current control for each of the boost converters.
展开▼
