DC/AC并联高频软开关逆变电源  

DC/AC Parallel Inverter with High Frequency and Soft Switch

作　　者：张蓉[1] 陈道炼[1] 王建华[1] 李旭[1] 

机构地区：[1]南京航空航天大学,江苏南京210016

出　　处：《电力电子技术》2006年第3期65-66,79,共3页Power Electronics

摘　　要：分析研究了主从模块法并联高频软开关逆变电源的电路拓扑、稳态原理、三态离散脉冲调制(DiscretePulseModulation,DPM)电流滞环控制技术、均流原理和关键电路参数设计。设计并研制成功的3kVA27VDC/115V400HzAC样机,具有体积重量小、变换效率高、静态精度高、动态响应快、输入电压范围宽、输出波形质量高、并联均流效果好、负载适应能力强、过载与短路能力强等优良性能,在大功率逆变场合具有重要应用价值。This paper discusses the circuit topology,steady principle,the three-state Discrete. Pulse Modulation （DPM） hysteresis current control strategy,principle of current sharing and criteria for the key cireuit parameters of parallel inverter with high frequency and soft switch constituted in master-slave mode.The developed 3kVA 27VDC / 115V400Hz AC prototype 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 （THD〈1.0%）,good effect on current-sharing （the bias of output current under normalized load is lower than 0.4A）, strong over-load and short-cireuit ability （the operation time 120min at 110% normalized load,Smin at 150% normalized load and 5 seconds at short load）, and strong function with different nature load and non-linear load.It is suit for large power field.

关 键 词：逆变电源 并联/高频脉冲直流环节 三态离散脉冲调制 均流 

分 类 号：TM464[电气工程—电器]