CAJ | 학술논문

为克服传统 Z 源逆变器的不足，提出了一种改进型开关电感准 Z 源逆变器，用自举电容代替了传统开关电感中的一个二极管。与前人提出的拓扑相比，改进型拓扑不但提高了升压能力，保证了输出波形的质量，而且使电容及开关器件的电压应力得到了降低，同时也减小了电感电流的脉动。对改进型拓扑结构进行了理论分析，仿真及实验结果验证了该拓扑的可行性。
위극복전통 Z 원역변기적불족，제출료일충개진형개관전감준 Z 원역변기，용자거전용대체료전통개관전감중적일개이겁관。여전인제출적탁복상비，개진형탁복불단제고료승압능력，보증료수출파형적질량，이차사전용급개관기건적전압응력득도료강저，동시야감소료전감전류적맥동。대개진형탁복결구진행료이론분석，방진급실험결과험증료해탁복적가행성。
To overcome the defects of traditional Z source inverters, an improved switched-inductor quasi-Z source inverter, in which a diode inside the original switched-inductor cell is substituted by bootstrap capacitor, is proposed. Comparing with the classic topology, the proposed improved topology not only can arise the boost ability to ensure the quality of output waveform, but also can make the voltage stress of both capacitor and switch elements decreased, meanwhile the ripper of inductor current is alleviated. The structure of this improved topology is analyzed theoretically, and results of simulation and experiments validate the feasibility of the proposed topology.