Demand response based microgrid's economic dispatch

M. Saeed, MD Sohel Rana, MD Kausaraahmed, C. El‐Bayeh, Fang-zong Wang
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Abstract

The development of energy management tools for next-generation Distributed Energy Resources (DER) based power plants, such as photovoltaic, energy storage units, and wind, helps power systems be more flexible. Microgrids are entities that coordinate DERs in a persistently more decentralized fashion, hence decreasing the operational burden on the main grid and permitting them to give their full benefits. A new power framework has emerged due to the integration of DERs-based microgrids into the conventional power system. With the rapid advancement of microgrid technology, more emphasis has been placed on maintaining the microgrids' long-term economic feasibility while ensuring security and stability. The objective of this research is to provide a multi-objective economic operation technique for microgrids containing air-conditioning clusters (ACC) taking demand response into account. A dynamic price mechanism is proposed, accurately reflecting the system's actual operational status. For economic dispatch, flexible loads and air conditioners are considered demand response resources. Then, a consumer-profit model and an AC operating cost model are developed, with a set of pragmatic constraints of consumer comfort. The generation model is then designed to reduce the generation cost. Finally, a microgrid simulation platform is developed in MATLAB/Simulink, and a case is designed to evaluate the proposed method's performance. The findings show that consumer profit increases by 69.2% while ACC operational costs decrease by 18.2%. Moreover, generation costs are reduced without sacrificing customer satisfaction.
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基于需求响应的微电网经济调度
为基于下一代分布式能源(DER)的发电厂开发能源管理工具,如光伏、储能装置和风能,有助于电力系统更加灵活。微电网是以持续更分散的方式协调DER的实体,因此减少了主电网的运营负担,并使其能够充分发挥其优势。由于将基于DER的微电网集成到传统电力系统中,出现了一种新的电力框架。随着微电网技术的快速发展,人们越来越重视在确保安全稳定的同时保持微电网的长期经济可行性。本研究的目的是为包含空调集群(ACC)的微电网提供一种考虑需求响应的多目标经济运行技术。提出了一种动态价格机制,准确地反映了系统的实际运行状态。对于经济调度,灵活负载和空调被视为需求响应资源。然后,在消费者舒适度的一组实用约束下,建立了消费者利润模型和空调运营成本模型。然后设计发电模型以降低发电成本。最后,在MATLAB/Simulink中开发了一个微电网仿真平台,并设计了一个实例来评估该方法的性能。研究结果表明,消费者利润增长了69.2%,ACC运营成本下降了18.2%。此外,在不牺牲客户满意度的情况下,发电成本降低了。
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来源期刊
CiteScore
4.50
自引率
16.00%
发文量
83
审稿时长
8 weeks
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