Load frequency control scheme for a microgrid system with the application of hTLO-DE algorithm

IF 0.7 Q3 ENGINEERING, MULTIDISCIPLINARY Engineering Review Pub Date : 2022-01-01 DOI:10.30765/er.1925

I. Koley, A. Datta, G. Panda

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Abstract

Load frequency control (LFC) is a crucial feature of electric power systems to maintain a balance between power supply and load demand, thus avoiding a deviation of the grid frequency. The present work aims to implement an effective LFC scheme for a microgrid system consisting of a diesel generator (DEG), a wind turbine generator (WTG) and a battery storage system. Proportional-integral-double-derivative (PIDD) controllers are used to implement the proposed LFC scheme. The controller parameters are computed using an innovative hybrid teaching-learning-optimization differential-evaluation (hTLO-DE) algorithm. The main scope of the work lies in application of hTLO-DE optimized PIDD controllers in DEG-WTG-battery storage based MG system. The results obtained with PIDD controllers are compared with those obtained with the traditional PI and PID controllers. A critical analysis shows that the PIDD controller can provide better dynamic responses in terms of settling time and magnitude of oscillations compared to PI and PID controllers. The frequency responses of the system are studied under different scenarios of generation and load variations, which establishes the robustness of the proposed PIDD-based LFC scheme.

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基于hTLO-DE算法的微电网系统负荷频率控制方案

负荷频率控制(LFC)是电力系统保持电力供应和负荷需求平衡，从而避免电网频率偏差的重要特性。目前的工作旨在实现一个由柴油发电机(DEG)、风力发电机(WTG)和电池存储系统组成的微电网系统的有效LFC方案。采用比例-积分-双导数(PIDD)控制器实现LFC方案。控制器参数的计算采用一种创新的混合式教学-学习-优化微分评估(hTLO-DE)算法。本文的主要工作范围是在基于deg - wtg -电池存储的MG系统中应用hTLO-DE优化pid控制器。将PID控制器与传统PI控制器和PID控制器的控制结果进行了比较。关键分析表明，与PI和PID控制器相比，PID控制器在稳定时间和振荡幅度方面可以提供更好的动态响应。研究了系统在不同发电和负荷变化情况下的频率响应，验证了基于pid的LFC方案的鲁棒性。

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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来源期刊

Engineering Review ENGINEERING, MULTIDISCIPLINARY-

CiteScore

1.00

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0.00%

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期刊介绍： Engineering Review is an international journal designed to foster the exchange of ideas and transfer of knowledge between scientists and engineers involved in various engineering sciences that deal with investigations related to design, materials, technology, maintenance and manufacturing processes. It is not limited to the specific details of science and engineering but is instead devoted to a very wide range of subfields in the engineering sciences. It provides an appropriate resort for publishing the papers covering prior applications – based on the research topics comprising the entire engineering spectrum. Topics of particular interest thus include: mechanical engineering, naval architecture and marine engineering, fundamental engineering sciences, electrical engineering, computer sciences and civil engineering. Manuscripts addressing other issues may also be considered if they relate to engineering oriented subjects. The contributions, which may be analytical, numerical or experimental, should be of significance to the progress of mentioned topics. Papers that are merely illustrations of established principles or procedures generally will not be accepted. Occasionally, the magazine is ready to publish high-quality-selected papers from the conference after being renovated, expanded and written in accordance with the rules of the magazine. The high standard of excellence for any of published papers will be ensured by peer-review procedure. The journal takes into consideration only original scientific papers.