Abstract

This paper is devoted to the study of a regulator based on a power electronic dc/ac converter that can carry out different functions on the improvement of electric power quality in the three-phase low-voltage grid. The algorithm of the control system is based on the Park–Gorev transform and the use of pulse-width modulation of converter voltage has been suggested. The effect of structure of an output passive converter filter on the operation of the grid regulator has been analyzed. A technique to calculate L- and LCL-filters of a regulator have been considered, as well as mathematical models of a regulator for analysis of its dynamic characteristics and determining the parameters of a control unit in the current feedback circuit, has been presented. Computer simulations that demonstrate the effect of the characteristics of an output filter and parameters of a control system on the dynamic characteristics of a device and level of current modulation distortion of the regulator have been carried out.

中文翻译：

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具有输出滤波器不同结构的三相电网稳压器

摘要

本文致力于基于电力电子dc / ac转换器的稳压器的研究，该稳压器可以在改善三相低压电网的电能质量方面执行不同的功能。控制系统的算法基于Park-Gorev变换，建议使用转换器电压的脉宽调制。分析了输出无源转换器滤波器的结构对电网调节器运行的影响。一种计算L-和LCL的技术已经考虑了调节器的滤波器，并且已经提出了用于分析调节器的动态特性并确定电流反馈电路中的控制单元的参数的调节器的数学模型。已经进行了计算机仿真，该仿真演示了输出滤波器的特性和控制系统的参数对设备的动态特性以及调节器的电流调制失真水平的影响。