摘要
本文提出了基于占空比扩展有源箝位正激式高频脉冲直流环节逆变器的组合式三相逆变器的电路结构,并对其电路拓扑、稳态原理、三态DPM电流滞环控制技术、负载特性、三相输出电压对称度进行了深入分析研究。设计并研制成功的3kV·A27Vlx/ 200V 400Hz AC组合式三相高频脉冲直流环节逆变器,这种逆变器具有体积重量小、变换效率高、静态精度高、动态响应快、输入电压变化范围宽、输出波形质量高、过载与短路能力强、带三相不平衡负载的能力强等优良性能。
A combined three-phase inverter based on the inverter with duty cycle extended active clamp forward style high frequency pulse de link is proposed. The circuit topology, steady principle, control strategy of three-state discrete pulse modulation （DPM） hysteresis current, load characteristic, criterions of the key circuit parameters of the combined three-phase inverter are investigated. The threephase inverter is combined of three same single inverter modules. A designed and developed prototype for 3kVA 27VDC/ 200V400HzAC combined three-phase inverter with high frequency pulse DC link has excellent comprehensive performances such as small bulk, lower weight, high conversion efficiency, high steady precision, fast dynamic response, wide input voltage range, good output waveforms, strong over-load and short-circuit ability,and strong ability with different nature load and three-phase unbalanced load.
出处
《电源世界》
2006年第2期41-44,共4页
The World of Power Supply
关键词
三相
逆变器
高频脉冲直流环节
三态离散脉冲调制
负载特性
three-phase inverter high frequency pulse de link three-state discrete pulse modulation（DPM） load characteristic
