Optimization and control strategy of electric vehicles access to power grid

IF 0.8 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Circuit World Pub Date : 2022-10-05 DOI:10.1108/cw-07-2020-0130

WanJun Yin, X. Qin

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引用次数: 1

Abstract

Purpose This paper aims to reduce the impact of disordered charging of large-scale electric vehicles (EVs) on the grid. EV is great significance for environmental protection, energy conservation and emission reduction to replace fuel vehicles with EVs. However, as a kind of random mobile load, large-scale integration into the power grid may lead to power quality problems such as line overload, line loss increase and voltage reduction. This paper realizes the orderly charging of electric vehicles and the safe operation of the distribution network by optimizing the dispatching scheme. Design/methodology/approach This paper takes the typical IEEE-33 node distribution system as the research object, adopts the improved particle swarm optimization algorithm and takes the minimum operation cost, the minimum environmental pollution, the minimum standard deviation of daily load, the minimum peak valley difference of load, the minimum node voltage offset rate and the minimum system grid loss rate as the optimization objectives. Findings Controlling the disordered charging of large-scale electric vehicles by optimizing the dispatching algorithm can realize the full consumption of renewable energy and the safe operation of the power grid. Originality/value Results show that the proposed scheme can realize the transfer of charging load in time and space, so as to stabilize the load fluctuation of distribution grid, improve the operation quality of power grid, reduce the charging cost of users and achieve the expected research objectives.

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电动汽车并网优化与控制策略

目的减少大型电动汽车无序充电对电网的影响。以电动汽车取代燃油汽车对环保、节能、减排具有重要意义。然而，作为一种随机的移动负荷，大规模并入电网可能会导致线路过载、线损增加、电压降低等电能质量问题。通过优化调度方案，实现了电动汽车的有序充电和配电网的安全运行。本文以典型的IEEE-33节点配电系统为研究对象，采用改进的粒子群优化算法，以最小的运行成本、最小的环境污染、最小的日负荷标准差、最小的负荷峰谷差、最小的节点电压偏移率和最小的系统电网损耗率为优化目标。结果通过优化调度算法控制大型电动汽车的无序充电，可以实现可再生能源的充分利用和电网的安全运行。结果表明，所提方案能够实现充电负荷在时间和空间上的转移，从而稳定配电网负荷波动，提高电网运行质量，降低用户充电成本，达到预期的研究目标。

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

Circuit World 工程技术-材料科学：综合

CiteScore

2.60

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Circuit World is a platform for state of the art, technical papers and editorials in the areas of electronics circuit, component, assembly, and product design, manufacture, test, and use, including quality, reliability and safety. The journal comprises the multidisciplinary study of the various theories, methodologies, technologies, processes and applications relating to todays and future electronics. Circuit World provides a comprehensive and authoritative information source for research, application and current awareness purposes. Circuit World covers a broad range of topics, including: • Circuit theory, design methodology, analysis and simulation • Digital, analog, microwave and optoelectronic integrated circuits • Semiconductors, passives, connectors and sensors • Electronic packaging of components, assemblies and products • PCB design technologies and processes (controlled impedance, high-speed PCBs, laminates and lamination, laser processes and drilling, moulded interconnect devices, multilayer boards, optical PCBs, single- and double-sided boards, soldering and solderable finishes) • Design for X (including manufacturability, quality, reliability, maintainability, sustainment, safety, reuse, disposal) • Internet of Things (IoT).