基于高频交流链接的新型充电技术研究

A novel AC-Link charging technology

分析研究了基于高频交流链接技术的新型充电结构,给出了该种充电结构的工作原理,并利用Matlab中的Simulink仿真模块对该结构进行了仿真研究,仿真结果表明通过高频交流链接技术构建的充电电源网侧电流波形近似为正弦波、与网侧电压相位差为零,具有高的功率因数和低的谐波含量,能够维持三相平衡运行。同时基于高频交流链接技术的充电电源能够实现恒流充电和恒功率充电两种充电模式。

A new charging structure based on AC-Link technology was analyzed in the paper,and the working principle was introduced.The Simulink in Matlab was used to simulate the structure.The results show that the grid side current waveforms of power supply,structured through the AC-Link technology,is approximate a sine waveform,and shows no phase difference with the voltage waveform.Thus,the high power factor and low total harmonic distortion is obtained and the three-phases balanced operating is maintained.This kind of structure can also operate in constant current or constant power charging mode.