Reduction of common-mode voltage in an indirect matrix converter with imposed sinusoidal input/output waveforms
Reduction of common-mode voltage in an indirect matrix converter with imposed sinusoidal input/output waveforms
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DOI：
10.1109/iecon.2012.6389083
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发表时间：
2012-12
期刊：
影响因子：
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通讯作者：
M. Rivera;José Rodríguez;J. Espinoza;Bin Wu
中科院分区：
文献类型：
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作者：
M. Rivera;José Rodríguez;J. Espinoza;Bin Wu
本文提出了一种新的策略，间接矩阵变换器，有效地减轻共模电压，并允许电源和负载电流的最佳控制。该方法利用换流器在后续采样时间内的换流状态，根据一个简单的代价函数和离散系统模型给出的优化算法进行优化。控制目标是根据任意参考调节输出电流，以及将源电流良好地跟踪到其参考，这是为了获得具有低失真的正弦波形而施加的。该技术通过在成本函数中增加一个额外的项来降低共模电压，从而避免早期电机绕组故障和轴承劣化。仿真结果支持理论发展。
Presented in this paper is a new strategy for indirect matrix converters that effectively mitigates common-mode voltages and allows an optimal control of source and load currents. This method uses the commutation state of the converter in the subsequent sampling time according to an optimization algorithm given by a simple cost function and the discrete system model. The control goals are regulation of output current according to an arbitrary reference and also a good tracking of the source current to its reference, which is imposed in order to obtain a sinusoidal waveform with low distortion. The technique is enhanced by a reduction of the common-mode voltage with an extra term in the cost function so as to avoid early motor winding failure and bearing deterioration. Simulation results support the theoretical development.