CAJ | 학술논문

矩阵变换器由于输出电压、电流中存在的谐波成分对所带的负载有很大影响,引入电压、电流双闭环控制策略,提出一种带LCL滤波器的新型矩阵变换器.该变换器包含交-直(整流)和直-交(逆变)2级电路,其直流侧不需要储能元件,整流级和逆变级采用双向开关,在一定的约束条件下可降低开关的数量.分析了矩阵变换器的拓扑结构、双空间矢量调控算法、LCL滤波器设计及其在矩阵变换器逆变级的应用等.通过Matlab/Simulink软件进行了仿真实验,结果表明,带LCL滤波器的新型矩阵变换器能有效地降低输出电压、电流谐波,并能抑制输入侧谐波对输出电压、电流的影响.
구진변환기유우수출전압、전류중존재적해파성분대소대적부재유흔대영향,인입전압、전류쌍폐배공제책략,제출일충대LCL려파기적신형구진변환기.해변환기포함교-직(정류)화직-교(역변)2급전로,기직류측불수요저능원건,정류급화역변급채용쌍향개관,재일정적약속조건하가강저개관적수량.분석료구진변환기적탁복결구、쌍공간시량조공산법、LCL려파기설계급기재구진변환기역변급적응용등.통과Matlab/Simulink연건진행료방진실험,결과표명,대LCL려파기적신형구진변환기능유효지강저수출전압、전류해파,병능억제수입측해파대수출전압、전류적영향.
As the harmonic components in the output voltage and current of matrix converter have great impact on loads, a novel matrix converter with LCL filter is proposed, in which the dual-loop control strategy of voltage and current is introduced. Without energy storage components at DC side, the converter includes an AC / DC rectifier and a DC / AC inverter, applying the bi-directional switches to reduce the number of switch under certain constraints. The topology of matrix converter,the algorithm of Double Space Vector PWM and the design of LCL filter applied in the inverter are presented. The results of simulation with Matlab / Simulation show that,the harmonic components in the output voltage and current of matrix converter are effectively reduced and the influence of grid input harmonics is suppressed.