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
Ali Solati, Ali Asghar Shojaei, Sepehr Soltani, Seyed Ali Hosseini
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引用次数: 0
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.
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