Day-ahead and real-time optimal dispatching of islanded microgrid based on improved symbiotic organisms search and real-time dynamic adjustment strategy

IF 7.1 2区工程技术 Q1 ENERGY & FUELS

Sustainable Energy Technologies and Assessments Pub Date : 2025-02-01 DOI:10.1016/j.seta.2025.104185

Kang Yang , Chunhua Li , Xu Jing , Zhiyu Zhu , Yuting Wang , Haodong Ma , Yu Zhang

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引用次数: 0

Abstract

To improve the economy benefit of energy optimal dispatching of islanded microgrid (MG) and the ability to deal with the uncertainty of load, the day-ahead optimal dispatching based on improved symbiotic organisms search (ISOS) and the real-time optimal dispatching based on real-time dynamic adjustment strategy (RTDAS) is proposed. The structure of islanded MG based on multi-agent system introduces consumption resistors (CR) to consume excess energy in real-time dispatching. The introduction of recombination and mutation phase in ISOS is to improve the global search ability to obtain better day-ahead optimal dispatching results. Then the RTDAS in real-time optimal dispatching adjusts the power output of batter energy storage system (BESS), micro-turbine (MT) and CR to deal with the fluctuation of actual load. To improve the solving speed of real-time optimal dispatching, the models of BESS and MT are linearized. Simulation shows that the day-ahead optimal dispatching results based on ISOS are better than that based on SOS and the real-time optimal dispatching based on RTDAS can quickly complete the real-time power output adjustment of BESS, MT and CR in about 1 s time. Moreover, the results of real-time optimal dispatching with linearization model of BESS and MT are better than those without linearization.

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来源期刊

Sustainable Energy Technologies and Assessments Energy-Renewable Energy, Sustainability and the Environment

CiteScore

12.70

自引率

12.50%

发文量

1091

期刊介绍： Encouraging a transition to a sustainable energy future is imperative for our world. Technologies that enable this shift in various sectors like transportation, heating, and power systems are of utmost importance. Sustainable Energy Technologies and Assessments welcomes papers focusing on a range of aspects and levels of technological advancements in energy generation and utilization. The aim is to reduce the negative environmental impact associated with energy production and consumption, spanning from laboratory experiments to real-world applications in the commercial sector.