缓解配电网电压骤降影响的配电静态补偿器控制策略分析

Q3 Engineering

WSEAS Transactions on Power Systems Pub Date : 2023-12-14 DOI:10.37394/232016.2023.18.31

Aboyede Abayomi, A. Nnachi

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引用次数: 0

摘要

电压骤降、过电压、负载不平衡以及电流和电压谐波畸变是配电网电能质量（PQ）问题的主要特征，对配电网产生了重大的负面影响。本研究探讨了定制电力设备配电静态补偿器（D-STATCOM）在缓解故障电压骤降过程中降低电流总谐波失真（THD）的性能。为了控制负载侧电压，D-STATCOM 利用三相电压源转换器，并在公共耦合点 (PCC) 上耦合。为缓解电压骤降效应，本研究使用动态引力搜索算法 (DGSA) 实现了传统 PI 控制器和基于智能优化的 PI 控制器，并比较了两者的效果。MATLAB/Simulink 仿真结果验证了这些控制器的性能。结果分析表明，采用智能优化 PI 控制策略的 D-STATCOM 运行完美，电流总谐波失真（THD）从 11.68% 降至 3.74%。

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Analysis of Distribution Static Compensator Control Strategies for Mitigating Voltage Dip Impact on Distribution Network

Voltage dip, over-voltage, load unbalanced, and current and voltage harmonics distortions are the key characteristics of poor power quality (PQ) issues on the power distribution network with a significant negative impact. The performance of a custom power device, distribution static compensator (D-STATCOM), in reducing current total harmonic distortion (THD) during the mitigation process of voltage dip with fault is investigated in this study. To control the load side voltage, the D-STATCOM utilizes a three-phase voltage source converter and is coupled at the point of common coupling (PCC). To mitigate voltage dip effects, this study implements and compares the effectiveness of the conventional PI controller with an intelligent optimization-based PI controller using the dynamic gravitational search algorithm (DGSA). The performance of these controllers is validated by the MATLAB/Simulink simulation results obtained. Analysis of the results demonstrates that D-STATCOM operates flawlessly with an intelligently optimized PI control strategy reducing the current THD from 11.68% to 3.74%.

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来源期刊

WSEAS Transactions on Power Systems Engineering-Industrial and Manufacturing Engineering

CiteScore

1.10

自引率

0.00%

发文量

期刊介绍： WSEAS Transactions on Power Systems publishes original research papers relating to electric power and energy. We aim to bring important work to a wide international audience and therefore only publish papers of exceptional scientific value that advance our understanding of these particular areas. The research presented must transcend the limits of case studies, while both experimental and theoretical studies are accepted. It is a multi-disciplinary journal and therefore its content mirrors the diverse interests and approaches of scholars involved with generation, transmission & distribution planning, alternative energy systems, power market, switching and related areas. We also welcome scholarly contributions from officials with government agencies, international agencies, and non-governmental organizations.