2023 International Conference on Power Energy Systems and Applications (ICoPESA)最新文献_第10页

Multi-objective Optimization Control Strategy for PV-Storage-Charging Stations for Peak Shaving of Distribution Network 配电网调峰时pv - storage -充电站多目标优化控制策略

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10141075

Zhixin Cong, Ji Zhao, Wei Xiao, Weidong Zhong, Jun Jia

{"title":"Multi-objective Optimization Control Strategy for PV-Storage-Charging Stations for Peak Shaving of Distribution Network","authors":"Zhixin Cong, Ji Zhao, Wei Xiao, Weidong Zhong, Jun Jia","doi":"10.1109/ICoPESA56898.2023.10141075","DOIUrl":"https://doi.org/10.1109/ICoPESA56898.2023.10141075","url":null,"abstract":"PV-storage-charging stations can effectively reduce the power supply load of the distribution network, but is less active in providing services to the distribution network. In view of the multi-objective optimization control problem of PV-storage-charging stations for peak shaving of the distribution network, multiple operation scenarios are considered to set an optimization objective of maximizing the income of PV-storage-charging stations and minimizing the peak-valley difference of the distribution network. On the premise of meeting the charging demand of electric vehicles, appropriate optimization strategies shall be adopted in different scenarios, so as to increase the income of charging stations and reduce the peak-valley difference of the distribution network. Various energy storage operating conditions are converted to the energy storage operating cost by the rain-flow counting algorithm. Finally, the optimization problem is solved using an improved Particle Swarm Optimization (PSO) algorithm, and the results show that the proposed strategy can increase the income of PV-storage-charging stations and reduce the peak shaving load of the grid.","PeriodicalId":127339,"journal":{"name":"2023 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117084407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Decoupled Network Feedforward Control of Weinberg Converter 温伯格变换器的解耦网络前馈控制

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10140766

Debin Zhang, Xinjie Wu, Chenhao Wu, Guangrui Zhou, Leilei Shi, Suliang Wu

引用次数: 0

Robust Optimization for Energy Transactions in Microgrid Cluster (MC) Considering Electric Vehicle (EV) 考虑电动汽车的微电网簇能量交易鲁棒优化

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10141062

Fei Feng, Du Xin

{"title":"Robust Optimization for Energy Transactions in Microgrid Cluster (MC) Considering Electric Vehicle (EV)","authors":"Fei Feng, Du Xin","doi":"10.1109/ICoPESA56898.2023.10141062","DOIUrl":"https://doi.org/10.1109/ICoPESA56898.2023.10141062","url":null,"abstract":"In order to cope with the many challenges brought by the large-scale electric vehicles (EVs) access to the microgrid, in view of the insufficient consideration of the existing EV disptaching strategy for the charging and discharging requirements of EVs, a two-stage microgrid cluster (MC) collaborative optimization was proposed, which uses the parking generation rate to realize the orderly charging of electric vehicles. In this paper, a two-stage adaptive robust optimization cooperative operation method in MC is proposed. The first stage is mainly to use the parking generation rate parameter to achieve orderly charging and discharging of EVs, and the second stage is to describe wind, photovoltaic (PV) and EVs for the improved polyhedral uncertain set. By transforming the KKT optimality conditions, the column constraint generation algorithm (C&CG) is used to solve the optimization model effectively. Case studies verify the effectiveness of the proposed model and evaluate the benefits of energy trading in MC. The simulation results show that the orderly charging strategy of EVs based on the parking generation rate can effectively avoid the problem of load spikes caused by a large number of EVs connected to the microgrid, provide the grid with peak-shaving and valley-filling services, and achieve a win-win situation for users and microgrids. At the same time, the use of multiple-microgrid can effectively reduce the transactions between microgrids and the power grid.","PeriodicalId":127339,"journal":{"name":"2023 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126432587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on Wireless Power Transfer Techniques in Structural Health Monitoring Applications 无线电力传输技术在结构健康监测中的应用研究

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10140328

Zhiming Sun, Kexue Cui, Dashan Wang

引用次数: 0

A Hybrid Energy Storage System Based on Wavelet Packet Decomposition Technology for Photovoltaic Power Smoothing 基于小波包分解技术的光伏电力滤波混合储能系统

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10140320

Li-Guo Weng, Xing-Long Feng, Di Jin, Hao-Han Ying, Shi-Hong Yue

{"title":"A Hybrid Energy Storage System Based on Wavelet Packet Decomposition Technology for Photovoltaic Power Smoothing","authors":"Li-Guo Weng, Xing-Long Feng, Di Jin, Hao-Han Ying, Shi-Hong Yue","doi":"10.1109/ICoPESA56898.2023.10140320","DOIUrl":"https://doi.org/10.1109/ICoPESA56898.2023.10140320","url":null,"abstract":"The strong fluctuation and intermittent of PV power generation have a great impact on the power quality and reliability of the power grid. A hybrid energy storage system (HESS) consisting of batteries and supercapacitors is always used to smooth PV power fluctuation, thereby reducing the impact on the grid. In this paper, based on the different characteristics of batteries and supercapacitors, a two-stage PV power fluctuation smoothing method is proposed. This method aims to meet the PV active power fluctuation standard in two different timescales. In the first stage, according to the short-term prediction of the PV power generation, the wavelet packet decomposition strategy is used to distribute the high-frequency component and obtain the first part power commands of the battery and the supercapacitor. In the second stage, based on the two-timescale PV active power fluctuation standard, the commands of the battery and the supercapacitor can be adjusted in real time. Further, two test days, i.e. sunny day and cloudy day, are used to verify the efficiency of the proposed two-stage PV power fluctuation smoothing method. Numerical results show that the proposed method can smooth the PV power generation fluctuations effectively by taking full advantage of the performance benefits of the HESS.","PeriodicalId":127339,"journal":{"name":"2023 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127349497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Differential Characteristics of Dissolved Acetylene Gas Threshold Value in Transformer Oil 变压器油中溶解乙炔气体阈值的差异特性

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10140815

Rui Liu, Tianhe Yang, Qing He, Yu Zhang, Y. Tu, Yunxiao Zhang, Meng Huang

{"title":"Differential Characteristics of Dissolved Acetylene Gas Threshold Value in Transformer Oil","authors":"Rui Liu, Tianhe Yang, Qing He, Yu Zhang, Y. Tu, Yunxiao Zhang, Meng Huang","doi":"10.1109/ICoPESA56898.2023.10140815","DOIUrl":"https://doi.org/10.1109/ICoPESA56898.2023.10140815","url":null,"abstract":"The content of acetylene is one of the important indicators of transformer fault diagnosis. Due to the differences between individual transformers, the content of acetylene gas varies greatly. The adoption of a single threshold is likely to lead to false alarm or missing report of the diagnosis results. The difference of gas threshold in oil has been paid more and more attention, but the difference characteristics of acetylene gas threshold in oil and its influencing factors are still unclear. This paper uses 10 kV test transformer and fault chamber to build a simulation test platform for gas production and diffusion under pin plate and column plate faults. The acetylene content in different stages of fault development was measured, and the gas distribution model was statistically analyzed. On this basis, based on the P-R curve, the attention value and warning value of acetylene content during the development of two kinds of faults are calculated, and the difference of threshold values of different oilpaper materials is compared. The results show that there are obvious differences in acetylene thresholds under different oil paper materials and faults, and the sensitivity and accuracy of fault diagnosis based on oil chromatography can be improved by using the calculated differential threshold.","PeriodicalId":127339,"journal":{"name":"2023 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127349501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Equivalence of Scarcity Pricing and Reliability Options in Guiding Generation Investment 引导发电投资的稀缺性定价与可靠性选择的等价性

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10141145

Zhen Dong, Aiqiang Pan, Hui Qu

引用次数: 0

Deep Reinforcement Learning-based Energy Management Strategy for a Microgrid with Flexible Loads 基于深度强化学习的柔性微电网能量管理策略

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10141490

Bin Zhang, Zhe Chen, A. Ghias

引用次数: 0

Experimental Study on Vibration Characteristics of GIS Equipment under Typical Mechanical Defects 典型机械缺陷下GIS设备振动特性试验研究

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10140568

Xu Hui, Zhang Jing, Li Mengqi, Liu Mengna, Luo Chuanxian, Huang Licai

{"title":"Experimental Study on Vibration Characteristics of GIS Equipment under Typical Mechanical Defects","authors":"Xu Hui, Zhang Jing, Li Mengqi, Liu Mengna, Luo Chuanxian, Huang Licai","doi":"10.1109/ICoPESA56898.2023.10140568","DOIUrl":"https://doi.org/10.1109/ICoPESA56898.2023.10140568","url":null,"abstract":"Mechanical vibration fault is one of the main causes of GIS equipment accidents. The current research mainly focuses on the vibration characteristics of GIS isolation switch under the defect of inadequate travel or the loose busbar, but there is still a lack of comprehensive comparison of the vibration characteristics of GIS equipment under different types of defects and different severity. Therefore, a 500kV GIS mechanical defect test platform was built in this paper to obtain GIS vibration characteristics of different types and severity of defects such as inadequate travel of isolation switch, loose busbar contact seat and loose shielding cover under different amplitude current injection. The test results show that under normal conditions, the vibration signal of GIS equipment shell is twice the frequency of the injection current, the amplitude is proportional to the square of the injection current, and the amplitude of the busbar gas chamber is higher than that of the isolation switch gas chamber. In the defect state, the vibration signal mainly shows the change of main frequency amplitude and high frequency harmonics. Using vibration signal characteristics, the isolation switch can be identified as normal state, spring loose defects, contact plate wear defects, contact not in place defects. And the busbar can be identified as normal state, loose defects of the contact seat, loose defects of the shielding cover, foreign body defects in the guide bar and loose defects of the support seat.","PeriodicalId":127339,"journal":{"name":"2023 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131230641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Frequency Modulation Strategy of Wind Power Generation in Power System of High Renewable Penetration 高可再生能源渗透率电力系统中风力发电的调频策略

2023 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2023-02-24 DOI: 10.1109/ICoPESA56898.2023.10140875

Cheng Chi, Shanshan Liu, Qi Liu, Fan Li

{"title":"Frequency Modulation Strategy of Wind Power Generation in Power System of High Renewable Penetration","authors":"Cheng Chi, Shanshan Liu, Qi Liu, Fan Li","doi":"10.1109/ICoPESA56898.2023.10140875","DOIUrl":"https://doi.org/10.1109/ICoPESA56898.2023.10140875","url":null,"abstract":"Wind turbines generally adopt the maximum wind energy tracking control strategy, which makes them obtain the best power generation efficiency. However, this makes wind turbines unable to respond to changes in system conditions, provide inertial support for the system, and participate in the primary frequency modulation of the system, which brings challenges to the frequency safety of high-proportion new energy power systems. In order to improve the frequency stability of high-proportion new energy power system and make wind turbines participate in frequency control actively, this paper proposes a primary frequency modulation control strategy based on load reduction for doubly-fed wind turbines. According to the aerodynamic characteristics of variable pitch wind turbine, a coordinated load shedding control strategy combining variable pitch and variable speed operation was proposed to make the wind turbine have active power reserve capacity. A frequency response link is added to the power control, so that the unit can output power to realize inertia and frequency support when the system frequency fluctuates. The simulation results show that the proposed control strategy can improve the system inertia and primary frequency modulation capability in the full wind speed operating domain under the load mutation condition, and improve the frequency stability of the system after the wind turbine is connected to the grid.","PeriodicalId":127339,"journal":{"name":"2023 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115112786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0