【摘要】 在分析了三相输入电压平衡条件下矩阵整流器的输入电流空间矢量调制(SVM)算法后,重点提出了一种适用于三相输入电压不平衡条件下的基于扇区可变和瞬时值计算的通用电流SVM算法,并为提高新算法对电压不平衡的适应能力和增加输出电压利用率提出了一种简单的处理方法。为了验证这种算法的有效性,基于SIMULINK6.0建立了接近实际系统设计的矩阵整流器仿真模型,在详细地描述了该模型建立原理后,分别给出输入电压平衡和三种不平衡条件下的仿真结果,该结果与理论分析结果相一致,反映了所提出算法的正确性。更多还原

【Abstract】 After the analysis of the input current space vector modulation(SVM) algorithm of matrix converter(MR) under balanced three-phase input voltages condition,a generalized current SVM algorithm of MR was mainly proposed so as to suit the imbalanced three-phase input voltages conditions based on variable sector and instantaneous value calculation.Thereby in order to improve the adaptability of the new algorithm to the voltage unbalance and increase the voltage utilization,a simple process approach was put forward.To validate the new algorithm,a practical simulation model of MR was built up with SIMULINK6.0.After detailed description of the modeling principle,the simulation results under balanced and imbalanced conditions are provided respectively.They are consistent with analysis results,which prove the proposed algorithm.更多还原