2022 12th International Conference on Power and Energy Systems (ICPES)最新文献_第2页

Design of Dynamic Password Authentication Scheme Based on SM Algorithm 基于SM算法的动态口令认证方案设计

2022 12th International Conference on Power and Energy Systems (ICPES) Pub Date : 2022-12-23 DOI: 10.1109/ICPES56491.2022.10073381

Xiaoqi Liang, Yong Wang, Xichao Yue

引用次数: 0

Pilot Protection for Transmission Line of Offshore Wind Power Based on Directions of Fault Current Variation and Cosine Distance 基于故障电流变化方向和余弦距离的海上风电输电线路导频保护

2022 12th International Conference on Power and Energy Systems (ICPES) Pub Date : 2022-12-23 DOI: 10.1109/ICPES56491.2022.10072940

Naihao Liu, Houlei Gao, Bin Xu, Yunchi Zhang, Haoran Song

{"title":"Pilot Protection for Transmission Line of Offshore Wind Power Based on Directions of Fault Current Variation and Cosine Distance","authors":"Naihao Liu, Houlei Gao, Bin Xu, Yunchi Zhang, Haoran Song","doi":"10.1109/ICPES56491.2022.10072940","DOIUrl":"https://doi.org/10.1109/ICPES56491.2022.10072940","url":null,"abstract":"The grid-connected offshore wind farm via voltage source converter based high voltage direct current transmission (VSC-HVDC) is an important part of new energy power generation. When its AC transmission line fault, it presents a fault characteristic that is obviously different from the traditional power grid. This makes the traditional pilot protection face the risk of decreasing sensitivity or even refusing to operate. Therefore, the fault current on both sides of the line will change in the same direction when an internal fault occurs. When an external fault occurs, the fault current changes in the opposite direction. This paper forms the protection principle according to this characteristic. The cosine distance algorithm is selected as a method to measure the correlation between the direction of fault current changes on both sides. A new pilot protection method for transmission line of offshore wind power based on directions of fault current variation and cosine distance is proposed. The feasibility of the protection method under different fault types and transition resistances is verified by simulation.","PeriodicalId":425438,"journal":{"name":"2022 12th International Conference on Power and Energy Systems (ICPES)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126580724","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 Grid Voltage Sensorless VSG Control Strategy Based on Static Coordinate System 基于静态坐标系的无电网电压传感器VSG控制策略

2022 12th International Conference on Power and Energy Systems (ICPES) Pub Date : 2022-12-23 DOI: 10.1109/ICPES56491.2022.10072850

Chunsong Liu, Ruixun Ma, Bing-chuan Li, Xueguang Zhang

引用次数: 0

Research on Meteorological Modeling Point Selection Method for Distributed PV Power Prediction 分布式光伏发电功率预测气象建模点选择方法研究

2022 12th International Conference on Power and Energy Systems (ICPES) Pub Date : 2022-12-23 DOI: 10.1109/ICPES56491.2022.10073374

Han Wu, Liping Zhang, Zehan Lu, Chao Wu, Ling Zhou, Xincheng Tian

引用次数: 0

Image Processing and Deep Learning Technology Help Power Equipment Intelligent Operation Inspection 图像处理与深度学习技术助力电力设备智能运行巡检

2022 12th International Conference on Power and Energy Systems (ICPES) Pub Date : 2022-12-23 DOI: 10.1109/ICPES56491.2022.10072413

Zhang Shiling, Jiang Xiping

{"title":"Image Processing and Deep Learning Technology Help Power Equipment Intelligent Operation Inspection","authors":"Zhang Shiling, Jiang Xiping","doi":"10.1109/ICPES56491.2022.10072413","DOIUrl":"https://doi.org/10.1109/ICPES56491.2022.10072413","url":null,"abstract":"The new power system has the characteristics of “double height”, which mainly includes the introduction of wind power/photovoltaic and other power electronic devices on the basis of conventional power equipment, and the addition of typical converter valve hall internal converter transformer/valve tower/wall bushing/converter Bushing/super large voltage equalizing ball and other power equipment. For example, a large number of the power equipment need real-time operation and maintenance, it is urgent to develop efficient/practical/convenient intelligent operation and inspection technology for power equipment. Based on this, this paper combines image processing with deep learning technology, in which the image data includes high-definition digital photos/UV imager/infrared imager photos, and the deep learning algorithm mainly includes neural network and wavelet function processing. Through the above artificial intelligence algorithm processing, automatic extraction function of power equipment in image database and the comparative analysis function of historical image database are realized. Based on the above joint algorithm, it can effectively reduce the number of out detection of power equipment inspectors, automatically compare and analyze the massive image data acquisition and the historical image database, effectively discover the gradually strengthening points of UV discharge, the gradually increasing points of infrared imaging temperature or the gradually distorted points of displacement morphology, call high-definition digital photos based on the above information to mine the abnormal position of the state, and enlarge it to obtain the defect type. This paper attempts to provide the technical means for the intelligent operation inspection of the power equipment from the perspective of image processing. This technology has the broad application space and good theoretical research and engineering application value.","PeriodicalId":425438,"journal":{"name":"2022 12th International Conference on Power and Energy Systems (ICPES)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115610234","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

Molecular Dynamics Simulation of the Decomposition Mechanism of Alkylbenzene Insulating Oil 烷基苯绝缘油分解机理的分子动力学模拟

2022 12th International Conference on Power and Energy Systems (ICPES) Pub Date : 2022-12-23 DOI: 10.1109/ICPES56491.2022.10072529

J. Liao, Zhifeng Liu, Mingchun Hou, F. Gao, Yufei Chen, Yongye Xu, Huaqiang Li, Chen Zhang

引用次数: 0

Regional Spot Market Clearing Model for Multi-terminal High Voltage Direct Current Tie- Line with Bidirectional Transmission 双向输电多端高压直流联络线区域现货市场结算模型

2022 12th International Conference on Power and Energy Systems (ICPES) Pub Date : 2022-12-23 DOI: 10.1109/ICPES56491.2022.10073358

Yaping Hu, Huafeng Zhou, Shuhao Sun, Yubin He, Jialei Wang, Cheng Dong, Jie Liu

{"title":"Regional Spot Market Clearing Model for Multi-terminal High Voltage Direct Current Tie- Line with Bidirectional Transmission","authors":"Yaping Hu, Huafeng Zhou, Shuhao Sun, Yubin He, Jialei Wang, Cheng Dong, Jie Liu","doi":"10.1109/ICPES56491.2022.10073358","DOIUrl":"https://doi.org/10.1109/ICPES56491.2022.10073358","url":null,"abstract":"China's resources and load centers are distributed in reverse, and high voltage direct current (HVDC) technology is utilized to optimize the allocation of resources in the maximum range. Multi-terminal HVDC power can be freely controlled, and its characteristics of bidirectional transmission, network losses in the transmission process, power transmission restrictions, and power change restrictions in adjacent periods bring challenges to the spot market clearing model in the new power system environment. So, this paper proposes a HVDC tie-line model considering the characteristics including bidirectional transmission and transmission network loss. On this basis, this paper further proposes a regional spot market clearing model that also considers the transmission price of the tie-line in the spot market. With the goal of minimizing the overall cost of the region, the DC tie-line power, unit on and off state, and unit power are used as decision variables in the proposed model, and integer and nonnegative continuous variables are introduced to optimize and determine the tie-line transmission direction. Then the DC tie-line transmission power schedule, the AC tie-line transmission power schedule, unit start-up and shutdown schedule, and unit power schedule of the regional power grid are obtained on the premise of ensuring the security of the regional power grid. The proposed model finally realizes the synergy of wind, solar, water, and fire resources in the region. The three-region IEEE RTS-96 system is used for calculation, and the results verify the validity of the proposed model.","PeriodicalId":425438,"journal":{"name":"2022 12th International Conference on Power and Energy Systems (ICPES)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122038537","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

Modeling and Application of Dynamic Compensation Devices in Active Distribution Networks with Energy Storage Facilities 带储能的有源配电网动态补偿装置的建模与应用

2022 12th International Conference on Power and Energy Systems (ICPES) Pub Date : 2022-12-23 DOI: 10.1109/ICPES56491.2022.10072932

Zhuoming Deng, Yang Mei, Yinsheng Su, Wenfeng Yao, Zhifei Guo, B. Tian, Q. Ma, Baorong Zhou, Chao Hong

{"title":"Modeling and Application of Dynamic Compensation Devices in Active Distribution Networks with Energy Storage Facilities","authors":"Zhuoming Deng, Yang Mei, Yinsheng Su, Wenfeng Yao, Zhifei Guo, B. Tian, Q. Ma, Baorong Zhou, Chao Hong","doi":"10.1109/ICPES56491.2022.10072932","DOIUrl":"https://doi.org/10.1109/ICPES56491.2022.10072932","url":null,"abstract":"Dynamic compensation devices (DCDs) such as dynamic voltage restorers, static synchronous compensators, and unified power quality conditioners provide significant support to the operation of active distribution networks (ADNs) with energy storage facilities. This paper concerns on the modeling of DCDs and their application incorporated with optimal scheme problem. Firstly, the on-load tap changer is replaced by an ideal transformer without loss and a constant impedance to avoid frequent inversions of Jacobi matrix. Then, the mathematical model which describes the charging/discharging process and energy conversion of energy storage facilities is proposed. This model also limits the charging/discharging power and initial/terminal state of energy storage facilities. Moreover, three types of DCDs are modelled in dynamic and steady states based on their series-connection or parallel-connection accesses to ADNs. The power flow equations are modified accordingly to take their dynamic compensation into account. Their applications are realized by distribution automation system incorporated with optimal schemes. Finally, the case study is conducted on a practical 110-bus ADN of China Southern Power Grid. With the modeling and application of DCDs, the optimal schemes are obtained in multiple aspects such as electric energy and charging/discharging power of energy storage facilities, et al. The charging and discharging processes of energy storage facilities are verified to be independent. DCDs and optimal schemes significantly improve the operating conditions of ADNs in the aspect of network losses.","PeriodicalId":425438,"journal":{"name":"2022 12th International Conference on Power and Energy Systems (ICPES)","volume":"744 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120879843","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

Feasibility Analysis of Full Power Variable Speed Operation of Pumped Storage Power Station Based on M3C Converter 基于M3C变流器的抽水蓄能电站全功率变速运行可行性分析

2022 12th International Conference on Power and Energy Systems (ICPES) Pub Date : 2022-12-23 DOI: 10.1109/ICPES56491.2022.10073170

Youzong Jian, Lei Zhong, Feng Yi, Haishan Guo, Hemin Yang, Wei Xu, Jing Hu, Yanfei Wu

{"title":"Feasibility Analysis of Full Power Variable Speed Operation of Pumped Storage Power Station Based on M3C Converter","authors":"Youzong Jian, Lei Zhong, Feng Yi, Haishan Guo, Hemin Yang, Wei Xu, Jing Hu, Yanfei Wu","doi":"10.1109/ICPES56491.2022.10073170","DOIUrl":"https://doi.org/10.1109/ICPES56491.2022.10073170","url":null,"abstract":"The unit of variable-speed pumped storage can realize the stepless regulation of peak shaving and valley filling in power grid, improve the hydraulic performance of pump turbine, expand the operation range and improve the operating efficiency of the unit. The realization method of high-power variable-speed pumped-storage unit has been one of the key and difficult research works at this stage. In view of the complex excitation system of the AC excitation unit and only suitable for new applications, this paper proposes a full-power variable speed scheme in which multilevel matrix converter (M3C) topology converter are connected in parallel on both sides of the main circuit breaker of the existing pumped-storage unit. From the three dimensions of voltage stress, current stress and thermal stress of power electronics, the feasible scheme of using M3C converter to realize full power variable speed operation of pumped storage unit is analyzed. The feasibility of the proposed full-power variable-speed scheme is shown by comparing the pumping-storage starting strategies at constant speed and full-power variable-speed pumping-storage and the converted starting time of the water pump. The correctness of the proposed scheme is verified by the dynamic model experiment.","PeriodicalId":425438,"journal":{"name":"2022 12th International Conference on Power and Energy Systems (ICPES)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124449706","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

Research on the Scenario Design and Business Model Analysis of Source-Grid-Load-Storage Collaboration for Zero-Carbon Big Data Industrial Park 零碳大数据产业园源-网-负荷-蓄协同场景设计及商业模式分析研究

2022 12th International Conference on Power and Energy Systems (ICPES) Pub Date : 2022-12-23 DOI: 10.1109/ICPES56491.2022.10072622

Yunli Yue, Jianmin Ding, Dan Chen, Ruixue Fan, Yong Fang, Zhonghua Liu

引用次数: 1