多单相逆变器线与工作的Multisim仿真

Multisim Simulation on Wire-AND Operation of Single Phase Inverters

线与的概念来源于数字逻辑电路系统,本文将其应用在逆变驱动系统中,即不借助于任何接口控制电路,将多个单相逆变器的输出端直接并联在一起,共同驱动同一个负载。该技术的关键在于:系统中每一个单相逆变器根据其自身的承载力按比例分担负载的相应分量,本文利用频率、基波电压以及谐波电压的衰减校正算法来完成的,最后用Multisim的仿真结果证明了该算法的正确性。

The concept of Wire-AND is derived from Digital Circuit,and now it is applied in the system of two or more Single Phase Inverter Modules in parallel with no auxiliary interconnections.The key point is how to ensure each independent inverter to share the load in proportion to its own capacity.Here the system involved makes use of frequency,fundamental voltage,and harmonic voltage droop to meet the needs.Multisim Simulation results have proved the validity of this technique.