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Frequency Regulation in Isolated Microgrids Through Optimal Droop Gain and Voltage Control

机译:通过最佳下垂增益和电压控制频率调节孤立的微电网中的频率调节

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摘要

This article presents an adaptive active power droop controller and voltage setpoint control in isolated microgrids for optimal frequency response and stability after disturbances. The control scheme involves an optimal and model predictive control approach that continuously adjusts the active power droop gains and the voltage setpoints of Distributed Energy Resources (DERs) to maintain the frequency of the system within acceptable limits and enhance the primary frequency response of the system, while taking into account the active power sensitivity of the microgrid loads to the system's operating voltage. The proposed control scheme is tested, validated, and compared with previously proposed techniques using time-domain simulations for a test system based on a CIGRE medium voltage benchmark microgrid under different realistic conditions, demonstrating the advantages of the proposed approach.
机译:本文介绍了一个自适应有源电力下垂控制器和隔离的微电网中的电压设定点控制,以获得干扰后的最佳频率响应和稳定性。控制方案涉及最佳和模型预测控制方法,其连续调整有源功率下垂增益和分布式能源(DER)的电压设定点,以将系统的频率保持在可接受的限制内,并提高系统的主要频率响应,同时考虑到MicroGrid负载的有效功率敏感性,对系统的工作电压。通过基于CIGRE中电压基准微电网在不同的现实条件下,测试了所提出的控制方案,并与先前所提出的技术,并将其与先前所提出的技术相比,使用时间域模拟基于CIGRE中电压基准微电网,展示了所提出的方法的优点。

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