Active damping of filter based line side harmonics for matrix converter as drive converter with direct and space vector modulated control strategies

在连续应用中，基于LC滤波器的网侧系统扰动占据了中心位置，滤波电容电压和网侧电流表现出与控制策略无关的不可接受的谐波含量。这些谐波是由网侧LC滤波器的谐振行为以及由矩阵转换器调制产生的网侧电压和电流谐波共同产生的。通过在不同的控制策略中加入有源阻尼法，提高网侧电流的质量，使之符合国家标准。由于减少了无源滤波元件，提高了矩阵转换器的效率。由于额外的损耗，电机的效率会降低。此外，矩阵转换器的工作将更加稳定，并且可以减少滤波器所需的空间。

In the continuance application the LC-filter based line side system perturbation takes centre stage.The filter capacitor voltage and the line side current show unacceptable harmonic content independent of the control strategy. These harmonics result out of the of resonance behaviour of the line side LC-filter in combination with line side voltage harmonics and current harmonics produced by the matrix converter modulation. By adding active damping methods to different control strategies the quality of the line side current should be improved with respect to national standards. Because of the reduction of passive filter components the efficiency of the matrix converter will be increased. The efficiency of the electrical machine will decrease because of additional losses. Furthermore the matrixconverter will work more stable and a reduction of the space needed by the filter will be possible.