CAJ | 학술논문

采用均流负反馈是实现各逆变器并联模块均衡输出的有效方法。针对逆变器模块分布式并联的均流问题，研究了均流误差电流和环流的表达方法，得出了均流误差电流和环流是同一个物理量的结论。最后利用Matlab软件进行了仿真。仿真结果表明，出现了较大相位误差的两个逆变器并联模块采用均流负反馈可以大大减小环流，验证了该方法的有效性。
채용균류부반궤시실현각역변기병련모괴균형수출적유효방법。침대역변기모괴분포식병련적균류문제，연구료균류오차전류화배류적표체방법，득출료균류오차전류화배류시동일개물리량적결론。최후이용Matlab연건진행료방진。방진결과표명，출현료교대상위오차적량개역변기병련모괴채용균류부반궤가이대대감소배류，험증료해방법적유효성。
To employ the average current negative feedback is an effective scheme for realizing the balanced output of each inverter’s parallel module. Aimed at the mean current of the inverter with distributed parallel modules, this paper studies the representations of the error current of mean current and the circular current, comes to a conclusion that the former current and the latter are the same physical quantity, and eventually performs simulation by using Matlab software. The simulation results show that two inverters’parallel module where their phase errors are more can reduce the circular current greatly with negative feedback of mean current, thus proving the effectiveness of the proposed method.