Fuzzy-Based Multi-Objective Optimal Allocation of Capacitors and DSTATCOMs to Minimize Installation Cost and Power Loss and Improve Voltage Profile by Optimal Control of Fuzzy Parameters

IF 2.6 4区 工程技术 Q3 ENERGY & FUELS IET Renewable Power Generation Pub Date : 2025-03-14 DOI:10.1049/rpg2.70018
Ali Solati, Ali Asghar Shojaei, Sepehr Soltani, Seyed Ali Hosseini
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Abstract

Reducing power losses and improving voltage profile are among the most important concerns of the distribution network operators. Since the cause of the mentioned challenges is the lack of reactive power, these problems can be solved by installing reactive power compensators such as capacitors and DSTATCOMs. On the other hand, considering that the installation of reactive power resources based on just a few peak hours causes overdesigned and uneconomical project, a solution should be provided for the optimal allocation of these resources based on all hours of the study period. In this paper, a method based on fuzzy logic is developed to optimally allocate the reactive power compensators by considering the amount of network load in all hours of the study period. Another unique feature of the developed method is that the simulation time is very short due to the lack of need to run multiple load flows to calculate network variables. Therefore, as the first innovative contribution, the optimal allocation of capacitors and DSTATCOMs is done using a developed method based on standard fuzzy logic. Then, as the second contribution, fuzzy membership function parameters have been optimized and the developed method has been improved. The results showed the efficiency of the developed method to optimally allocate capacitors and DSTATCOMs in distribution network. Optimizing the fuzzy membership functions parameters reduced the total costs (improved the voltage profile) by 2.4%, 4.4% and 6% (by 1.3%, 3% and 3.7%), respectively, by installing one, two and three capacitors and DSTATCOMs.

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减少功率损耗和改善电压曲线是配电网络运营商最关心的问题之一。由于上述挑战的起因是无功功率不足,因此可以通过安装无功补偿器(如电容器和 DSTATCOM)来解决这些问题。另一方面,考虑到仅在几个高峰时段安装无功功率资源会导致项目设计过度且不经济,因此应提供一种解决方案,在研究期间的所有时段对这些资源进行优化分配。本文开发了一种基于模糊逻辑的方法,通过考虑研究期间所有时段的网络负荷量来优化无功补偿器的分配。所开发方法的另一个独特之处在于,由于无需运行多个负荷流来计算网络变量,因此仿真时间非常短。因此,作为第一个创新贡献,电容器和 DSTATCOM 的优化分配是通过基于标准模糊逻辑的开发方法完成的。然后,作为第二项贡献,对模糊成员函数参数进行了优化,并改进了所开发的方法。结果表明,所开发的方法能有效优化配电网络中电容器和 DSTATCOM 的分配。通过安装一个、两个和三个电容器和 DSTATCOM,优化模糊成员函数参数分别降低了 2.4%、4.4% 和 6% 的总成本(改善了电压曲线)(降低了 1.3%、3% 和 3.7%)。
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来源期刊
IET Renewable Power Generation
IET Renewable Power Generation 工程技术-工程:电子与电气
CiteScore
6.80
自引率
11.50%
发文量
268
审稿时长
6.6 months
期刊介绍: IET Renewable Power Generation (RPG) brings together the topics of renewable energy technology, power generation and systems integration, with techno-economic issues. All renewable energy generation technologies are within the scope of the journal. Specific technology areas covered by the journal include: Wind power technology and systems Photovoltaics Solar thermal power generation Geothermal energy Fuel cells Wave power Marine current energy Biomass conversion and power generation What differentiates RPG from technology specific journals is a concern with power generation and how the characteristics of the different renewable sources affect electrical power conversion, including power electronic design, integration in to power systems, and techno-economic issues. Other technologies that have a direct role in sustainable power generation such as fuel cells and energy storage are also covered, as are system control approaches such as demand side management, which facilitate the integration of renewable sources into power systems, both large and small. The journal provides a forum for the presentation of new research, development and applications of renewable power generation. Demonstrations and experimentally based research are particularly valued, and modelling studies should as far as possible be validated so as to give confidence that the models are representative of real-world behavior. Research that explores issues where the characteristics of the renewable energy source and their control impact on the power conversion is welcome. Papers covering the wider areas of power system control and operation, including scheduling and protection that are central to the challenge of renewable power integration are particularly encouraged. The journal is technology focused covering design, demonstration, modelling and analysis, but papers covering techno-economic issues are also of interest. Papers presenting new modelling and theory are welcome but this must be relevant to real power systems and power generation. Most papers are expected to include significant novelty of approach or application that has general applicability, and where appropriate include experimental results. Critical reviews of relevant topics are also invited and these would be expected to be comprehensive and fully referenced. Current Special Issue. Call for papers: Power Quality and Protection in Renewable Energy Systems and Microgrids - https://digital-library.theiet.org/files/IET_RPG_CFP_PQPRESM.pdf Energy and Rail/Road Transportation Integrated Development - https://digital-library.theiet.org/files/IET_RPG_CFP_ERTID.pdf
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