Implementation of Control Strategies for Energy Storage Systems and Interlinking Converters in an Interconnected Hybrid Microgrid System for Optimal Power Management Using OPAL-RT

IF 4.2 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Industry Applications Pub Date : 2024-08-30 DOI:10.1109/TIA.2024.3452065

Moshammed Nishat Tasnim;Tofael Ahmed;Shameem Ahmad;Saad Mekhilef

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引用次数: 0

Abstract

The interconnection of multiple microgrids (MGs) is gaining popularity due to its reliability, flexibility, and ability to handle the uncertainty of renewable energy sources. A proper control structure with robust and reliable control strategies is required to improve the interconnected microgrid's (IMG) performance concerning power sharing, power quality, and stability. Therefore, this paper presents a control structure for power flow control among interconnected hybrid microgrids (HMGs), with particular emphasis on the control strategies of three converters: the energy storage system (ESS), the HMG's interlinking converter (ILC), and the IMG's interconnecting converter (IC). Firstly, a V-f droop control-based ILC control strategy is designed to attain power sharing between AC and DC MGs in HMG while regulating both AC and DC voltages. Secondly, the control strategy of ESS combines a virtual inertia concept with a state of charge-based management to manage charging and discharging according to the IMG power flow and operating modes. Finally, the control strategy of a parallel IC structure based on double-loop voltage control is proposed to interconnect and control the power sharing and DC voltages of HMGs. The IMG system is designed in MATLAB/Simulink, and the performance is validated using the OPAL-RT simulator-based real-time software-in-the-loop simulation technique. The results indicate that the control structure, with three control strategies, ensures reliable performance in all modes and also maximizes power supply security.

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利用 OPAL-RT 为互联混合微电网系统中的储能系统和互联变流器实施控制策略，以实现最佳电源管理

多个微电网（MG）的互联因其可靠性、灵活性和处理可再生能源不确定性的能力而越来越受欢迎。为了提高互联微电网（IMG）在功率共享、电能质量和稳定性方面的性能，需要一种具有稳健可靠控制策略的适当控制结构。因此，本文提出了一种用于互联混合微电网（HMG）间功率流控制的控制结构，并特别强调了三个变流器的控制策略：储能系统（ESS）、HMG 的互联变流器（ILC）和 IMG 的互联变流器（IC）。首先，设计了一种基于 V-f 下降控制的 ILC 控制策略，以实现 HMG 中交流和直流 MG 之间的功率共享，同时调节交流和直流电压。其次，ESS 的控制策略结合了虚拟惯性概念和基于充电状态的管理，可根据 IMG 功率流和运行模式管理充电和放电。最后，提出了基于双环电压控制的并行集成电路结构的控制策略，以互连和控制 HMG 的功率共享和直流电压。在 MATLAB/Simulink 中设计了 IMG 系统，并使用基于 OPAL-RT 模拟器的实时软件在环仿真技术验证了其性能。结果表明，采用三种控制策略的控制结构可确保所有模式下的可靠性能，并最大限度地提高供电安全性。

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

IEEE Transactions on Industry Applications 工程技术-工程：电子与电气

CiteScore

9.90

自引率

9.10%

发文量

747

审稿时长

3.3 months

期刊介绍： The scope of the IEEE Transactions on Industry Applications includes all scope items of the IEEE Industry Applications Society, that is, the advancement of the theory and practice of electrical and electronic engineering in the development, design, manufacture, and application of electrical systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; industry leadership in energy conservation and environmental, health, and safety issues; the creation of voluntary engineering standards and recommended practices; and the professional development of its membership.