新型矩阵变换器安全运行策略的研究

由于矩阵式变换器（MC）没有续流回路,因而保证其安全运行也就成为了一个难点.提出了一种新型MC故障容错安全运行策略,当出现故障时,通过控制变换器双向开关的导通状态为负载提供一个可控安全的续流回路,使负载能够在短时间内释放储能,减少对变换器系统电路的损坏.并对故障情况进行分析,通过MATLAB/Simulink仿真验证该策略的正确性和可行性.

Research on a new matrix converter safety operation strategy

Matrix converter （MC） has no free-wheeling path, which becomes a difficult issue to ensure its safe operation. This paper proposes a new fault-tolerant safe operation method for matrix converter. The key of the proposed method is to provide a safe and controlled path for converter switch conduction state when a fault occurs. The load can release the stored energy in a short time and reduce the damage of circuit in the inverter system. It analyses the proposed method under fault condition and verifies the feasibility of the strategy and the correctness of the presented theory by the simulation of MATLAB/ simuhnk.