摘要
The conventional inverters have the shortcomings of straightway conduction in transistors and the difficulty of realizing soft swit ̄ching. A novel inverter based on the DC/DC converter topology is presented. The inverter is comprised of a combined Buck/Boost DC/DC converter and a bridge circuit. The front stage converter is controlled to output variable DC voltage and the bridge circuit is used to convert the DC voltage to AC output. The energy feedback technology and one circle control scheme are used t...
本文针对传统的逆变器存在功率管直通和难以实现软开关的缺点 ,提出了一种新颖的基于DC/DC变换器拓扑的逆变器 .该逆变器由一个组合的Buck/Boost直直变换器和一个桥式电路构成 ,前级变换器输出可变的直流电压 ,后级电路将直流电压转换为交流输出 .该逆变器可以实现逆变桥功率管的软开关 .由于采用了能量反馈和单周期控制技术 ,变换器具有良好的动态性能 .本文对该变换器的电路拓扑和控制原理进行了详细分析 .