The complex simulation model designed four step commutation strategy and thought of effects of actual switch devices on matrix converter, which is almost the same as the actual system and can simulate the actual operation of matrix converter. 复杂仿真模型设计了四步换流策略,考虑了实际开关器件的特性,基本上和实际系统一致,可模拟实际的矩阵变换器工作。
Opening characteristics of the parallel switch and current commutation characteristics from parallel switch to thyristors is analyzed in detail by means of mathematical model. 该文建立了机械开关和晶闸管换流过程的数学模型,分析了影响换流时间的因素。
The inverter features single phase commutation, main switch IGBT working under zero voltage condition and auxiliary switch working under zero current condition. 该逆变器具有单相换相、逆变器主开关管工作在ZVS零电压开关以及辅开关管工作在ZCS零电流开关环境下的特点。
The proposed auxiliary commutation circuit consists of one resonant inductor and two bidirectional switch, which provides the ZVS condition to the main switch without increasing voltage or current stresses. 提出的辅助变换电路由一个谐振电感和两个双向开关组成,此电路没有增加主开关的电压和电流应力,却给主开关提供了ZVS的条件。
Researched four-step commutation algorithm based on detection of load current to complete the exchange of electronic switch for flow control, and has confirmed the correctness and fast of the algorithm on the basis of simulation and experiment. 研究了基于检测负载电流方向的四步换流算法来完成交流电子开关的换流控制,在仿真与实验的基础上验证了该算法的正确性与快速性。