Modeling, analysis and control of cascaded-multilevel converter-based STATCOM

S. Sirisukprasert, A. Huang, J. Lai
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引用次数: 136

Abstract

Modeling techniques for cascaded-multilevel converter-based STATCOM in abc and dqo coordinates are proposed. The simplified models for a balanced three-phase three-wire system in dqo are used in feedback controller design for cascaded seven-level converter-based STATCOM system. The development and analysis of the models are presented. Feedback control schemes are proposed to achieve a fast dynamic response as well as DC capacitor voltage balance. Computer simulation is performed to verify the accuracy of the models and performance of the controller. The simulation results show the consistency of the proposed models. In addition, the fast step responses in the order of subline cycle can be achieved.
基于级联多电平变换器的STATCOM建模、分析与控制
提出了基于abc和dqo坐标系的级联多电平变换器的STATCOM建模技术。将三相平衡三线制系统的简化模型应用于基于级联七电平变换器的STATCOM系统的反馈控制器设计。给出了模型的开发和分析。为了实现快速的动态响应和直流电容电压平衡,提出了反馈控制方案。通过计算机仿真验证了模型的准确性和控制器的性能。仿真结果表明了所提模型的一致性。此外,还可以实现子周期级的快速阶跃响应。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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