孤岛状态下微电网并联运行虚阻抗下垂控制性能分析

2021 International Conference on Computing, Electronic and Electrical Engineering (ICE Cube) Pub Date : 2021-10-26 DOI:10.1109/ICECube53880.2021.9628235

Muhammad Muzammil Farooqi, A. Ulasyar, Waleed Ali, Haris Sheh Zad, A. Khattak

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引用次数: 1

摘要

孤岛微电网中分布式发电的集成提出了新的控制挑战。下垂控制是微电网分层框架中应用广泛的一种控制方法。然而，下垂控制有一些限制，导致功率解耦，因此使用虚拟阻抗回路。虚拟阻抗环调节了微电网的电阻特性，改善了微电网系统的整体下垂控制。本文分析了在孤岛模式下，加入虚拟阻抗后的下垂控制的性能。分析了虚拟阻抗对下垂控制的影响，并考虑了有虚拟阻抗和无虚拟阻抗、输电线路故障、负载突然增加和负载突然减少四种不同的微电网情况。在MATLAB/Simulink中对这些场景进行了仿真，并对控制策略的有效性进行了研究。

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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Performance Analysis of Droop Control with Virtual Impedance in Parallel Operation of Microgrid in Islanded Mode

The integration of distributed generation in an islanded microgrid presents new challenges of control. Droop control is a widely used control in the hierarchical framework in a microgrid. However, droop control has some limitations which lead to power decoupling and hence the use of a virtual impedance loop. The virtual impedance loop adjusts the resistive nature of MG and improves overall droop control of the microgrid system. This paper presents a performance analysis of droop control along with the addition of virtual impedance in the island mode operation of MG. The comparison of droop control along with virtual impedance is analyzed and four different microgrid scenarios were considered i.e. with and without virtual impedance, Fault in the transmission line, Sudden increase in load and Sudden decrease in load. All these scenarios were simulated in MATLAB/Simulink and the effectiveness of the control strategies was studied.

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2021 International Conference on Computing, Electronic and Electrical Engineering (ICE Cube)

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