CAJ | 학술논문

为进一步提高高压电能变换领域输出波形的质量,基于多电平技术的相关原理,提出了无中间直流环节的改进型Zeta式三电平AC/AC变换器,进一步介绍了该变换器的电路结构、电路拓扑和高频控制策略.利用仿真软件Pspice建立了改进型Zeta式三电平AC/AC变换器的电路仿真模型,给出了该变换器闲环控制的主电路图,对其进行了闭环控制仿真验证,得出了闭环控制电路各部分的输出波形,并在输入端交流信号波动的情况下测试了输出端的稳压性能.结果表明:该改进型Zeta式三电平AC/AC变换器的拓扑结构简单,设计原理正确,控制方法简单可行,有较好的稳压功能.
위진일보제고고압전능변환영역수출파형적질량,기우다전평기술적상관원리,제출료무중간직류배절적개진형Zeta식삼전평AC/AC변환기,진일보개소료해변환기적전로결구、전로탁복화고빈공제책략.이용방진연건Pspice건립료개진형Zeta식삼전평AC/AC변환기적전로방진모형,급출료해변환기한배공제적주전로도,대기진행료폐배공제방진험증,득출료폐배공제전로각부분적수출파형,병재수입단교류신호파동적정황하측시료수출단적은압성능.결과표명:해개진형Zeta식삼전평AC/AC변환기적탁복결구간단,설계원리정학,공제방법간단가행,유교호적은압공능.
To further improve the quality of output waveform in the field of high-voltage energy transformation,the improved Zeta-type three-level AC/AC converter without intermediate DC link is studied and proposed according to the relevant theory of multi-level technology.Its circuit structure,circuit topology and high-frequency control strategy are introduced.The circuit simulation model of improved Zeta-type three-level AC/AC converter is built with Pspice simulation software,and its main circuit of closed-loop control is presented.The output waveforms of various parts of closed-loop control circuit are simulated and verified,and the voltage regulator performance of the output is tested by exerting fluctuation on input AC voltage.Results show that the proposed converter has simple topology,correct design principle,good voltage stability,and simple and feasible control method.