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2021 China International Conference on Electricity Distribution (CICED)最新文献

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Failure Analysis of a 110 kV Composite Insulator with High Voltage Sheath Cracking 110kv复合绝缘子高压护套开裂失效分析
2021 China International Conference on Electricity Distribution (CICED) Pub Date : 2021-04-07 DOI: 10.1109/CICED50259.2021.9556813
Jian‐Jun Zheng, Yunpeng Gao, Zhigang Wei
{"title":"Failure Analysis of a 110 kV Composite Insulator with High Voltage Sheath Cracking","authors":"Jian‐Jun Zheng, Yunpeng Gao, Zhigang Wei","doi":"10.1109/CICED50259.2021.9556813","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556813","url":null,"abstract":"In this paper, the crack cause of a 110 kV composite insulator sheath was investigated by means of several different test methods. The results indicated that the crack of the HV sheath was mainly related to the unqualified bonding process and long-term external stress actions. Air void was introduced into the metal fitting-sheath interface due to inferior pasting technology, causing accelerated aging of HV sheath silicone rubber materials. Besides, the corner of composite insulator sheath was always high stress concentrated. Finally, long-term external stress actions and heat inducing accelerated aging of silicone rubber materials resulted in the HV sheath cracking.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116312296","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
Model Predictive Control for Hybrid Energy Storage System in Active Distribution Network 有源配电网混合储能系统的模型预测控制
2021 China International Conference on Electricity Distribution (CICED) Pub Date : 2021-04-07 DOI: 10.1109/CICED50259.2021.9556669
W. Xiuru, L. Gang, Q. Dong, Xu Jing, Wang Kelong
{"title":"Model Predictive Control for Hybrid Energy Storage System in Active Distribution Network","authors":"W. Xiuru, L. Gang, Q. Dong, Xu Jing, Wang Kelong","doi":"10.1109/CICED50259.2021.9556669","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556669","url":null,"abstract":"To improve the performance of hybrid energy storage system in ADN, which combines the advantage of high energy storage units and high power storage units under the aim of traditional coordinate control method, a coordinate control method based on model predictive control theory is proposed. The method optimizes the control procedure, taking predict information into account within prospective time window, to realize autonomous area control. The optimization control reaches multi-objective optimization including the stability of autonomous area’s exchange power and optimized power allocation of hybrid energy storage system. The simulation proves that the method can improve the performance of HESS and realize overcharge/over-discharge protecting besides area autonomy. Compared with other coordinate control strategy, the method proposed is mathematically meaningful and convenient to set control parameters.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117354740","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
Cluster Synchronization of Kuramoto Oscillators Networks Kuramoto振子网络的簇同步
2021 China International Conference on Electricity Distribution (CICED) Pub Date : 2021-04-07 DOI: 10.1109/CICED50259.2021.9556675
Wenrui Fan, Donghua Zhao, Tie Li, Dai Cui
{"title":"Cluster Synchronization of Kuramoto Oscillators Networks","authors":"Wenrui Fan, Donghua Zhao, Tie Li, Dai Cui","doi":"10.1109/CICED50259.2021.9556675","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556675","url":null,"abstract":"The increasing demand for power makes the synchronization or cluster synchronization of power grid become an essential topic. In this paper, from the view of complex network, the following work is accomplished based on Kuramoto oscillators network: (1) Theoretically prove the condition of frequency cluster synchronization of Kuramoto oscillators network. (2) Using the method of Lagrange multiplier, propose an algorithm to modify the adjacency matrix, which makes a large class of Kuramoto oscillator network reach frequency cluster synchronization after modification. The correctness of the algorithm is verified by numerical simulation. (3) Analyze the stability of the algorithm in (2), we find that the reduction of the number of adjustable adjacency weights will reduce the stability of the algorithm. Besides, the initial value of each oscillator also affects.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"226 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114320928","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 Research on Multi-Dimensional Evaluation Index System of Distribution Network Loss 配电网损耗多维评价指标体系研究
2021 China International Conference on Electricity Distribution (CICED) Pub Date : 2021-04-07 DOI: 10.1109/CICED50259.2021.9556681
Zhang Rui, L. Kecheng, L. Xiaoming, Dong Jingyuan, L. Anchang
{"title":"The Research on Multi-Dimensional Evaluation Index System of Distribution Network Loss","authors":"Zhang Rui, L. Kecheng, L. Xiaoming, Dong Jingyuan, L. Anchang","doi":"10.1109/CICED50259.2021.9556681","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556681","url":null,"abstract":"At present, the evaluation of regional distribution network loss usually uses a single line loss rate index as the evaluation standard. Comprehensively considering factors such as the distribution grid structure, equipment status, power consumption structure and other factors, this paper establishes a multi-dimensional evaluation index system of the distribution network line loss from three aspects as line loss rate, power grid operation and planning, line and transformer equipment. Taking the line loss situation of the distribution network in two regions of a province as an example, the evaluation index system and corresponding evaluation method are used for evaluation. The calculation example shows that the constructed index system can comprehensively and effectively evaluate the overall situation and weak links of the regional distribution network line loss, thus guiding the direction of regional distribution network loss reduction.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114461131","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
Static Security Analysis of Source-Side High Uncertainty Power Grid Based on Deep Learning 基于深度学习的源侧高不确定性电网静态安全性分析
2021 China International Conference on Electricity Distribution (CICED) Pub Date : 2021-04-07 DOI: 10.1109/CICED50259.2021.9556780
Tiantian Qian, Shengchun Yang, Shenghe Wang, Dong Pan, Jian Geng, Ke Wang
{"title":"Static Security Analysis of Source-Side High Uncertainty Power Grid Based on Deep Learning","authors":"Tiantian Qian, Shengchun Yang, Shenghe Wang, Dong Pan, Jian Geng, Ke Wang","doi":"10.1109/CICED50259.2021.9556780","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556780","url":null,"abstract":"As a large amount of renewable energy is injected into the power grid, the source side of the power grid becomes extremely uncertain. Traditional static safety analysis methods based on pure physical models can no longer quickly and reliably give analysis results. Therefore, this paper proposes a deep learning-based static security analytical method. First, the static security assessment index of the power grid under the N-1 principle is proposed. Secondly, a neural network model and its input and output data for static safety analysis problems are designed. Finally, the validity of the proposed method was verified by IEEE grid data. Experiments show that the proposed method can quickly and accurately give the static security analysis results of the source-side high uncertainty grid.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115786876","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: 2
Planning Method for Multi-regional Interconnected Energy Stations of Electricity and Hydrogen (CICED 2020) 多区域互联电氢能源站规划方法(CICED 2020)
2021 China International Conference on Electricity Distribution (CICED) Pub Date : 2021-04-07 DOI: 10.1109/CICED50259.2021.9556662
Chen Yun, Liu Dong
{"title":"Planning Method for Multi-regional Interconnected Energy Stations of Electricity and Hydrogen (CICED 2020)","authors":"Chen Yun, Liu Dong","doi":"10.1109/CICED50259.2021.9556662","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556662","url":null,"abstract":"Due to different energy consumption characteristics in different regions, the planning of single regional energy system will lead to limited equipment capacity, low renewable energy penetration and poor regional economy. In response to the above problems, this article proposes a multi-regional joint planning method based on the interconnection of electricity and hydrogen. Firstly, the model of multi-regional electricity-hydrogen interconnected energy system is established. And then the optimal solution of multi-regional energy station collaborative planning is limited in the feasible region through interconnected cable power constraints, hydrogen transportation constraints, interconnected power balance constraints, interconnected power line loss constraints, etc. Finally, taking the functional areas with different energy supply and consumption characteristics as the research object, the effectiveness of the proposed method in improving system economy and promoting renewable energy consumption is verified.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127565963","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
A 110kV transformer breakdown resulting from insufficient short circuit resistance 110kV变压器因短路电阻不足击穿
2021 China International Conference on Electricity Distribution (CICED) Pub Date : 2021-04-07 DOI: 10.1109/CICED50259.2021.9556763
Ma Hao, Zhang Xin, Zhang Chi, Ma Xiaoguang, Wei Jufang, Duan Minghui
{"title":"A 110kV transformer breakdown resulting from insufficient short circuit resistance","authors":"Ma Hao, Zhang Xin, Zhang Chi, Ma Xiaoguang, Wei Jufang, Duan Minghui","doi":"10.1109/CICED50259.2021.9556763","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556763","url":null,"abstract":"The short-circuit resistance is an important performance indicator of operating transformers. It is affected by so many factors like product quality, operating condition, and maintenance. This paper provides a short circuit fault in a 110kV transformer and drowns some conclusion of evaluating and maintaining short-circuit resistance during lifetime of transformers. This is of great importance for preventing transformer short-circuit damage and good help for making suggestions to improve reliability of the power grid.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121025622","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
Cause analysis of abnormal system voltage caused by phase absence of circuit breaker parallel capacitor 断路器并联电容缺相引起系统电压异常的原因分析
2021 China International Conference on Electricity Distribution (CICED) Pub Date : 2021-04-07 DOI: 10.1109/CICED50259.2021.9556834
Tan Shangren, Zha Xianfeng, Xiong Guoxi
{"title":"Cause analysis of abnormal system voltage caused by phase absence of circuit breaker parallel capacitor","authors":"Tan Shangren, Zha Xianfeng, Xiong Guoxi","doi":"10.1109/CICED50259.2021.9556834","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556834","url":null,"abstract":"Based on Kirchhoff's current law, this paper calculated and analyzed a fault that the shunt capacitor of generator circuit breaker phase loss. The reasons causing abnormal condition of generator outlet voltage and low voltage side voltage of main transformer are analyzed. It is concluded that the fault of the shunt capacitor of the circuit breaker may cause the imbalance of the capacitance to earth of each phase of the system, and thus lead to the abnormal voltage of the system. And on this basis, combined with the author's work experience, give preventive measures for such abnormal situations for reference.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122010408","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 Assisted Strategy of Fault Line Selecting Method for Single-phase Ground Fault in Distribution Netword Base on Automation System 基于自动化系统的配电网单相接地故障选线方法辅助策略研究
2021 China International Conference on Electricity Distribution (CICED) Pub Date : 2021-04-07 DOI: 10.1109/CICED50259.2021.9556673
Zhang Beibei, Z. Jiaqi, Wang Yuanyuan, Huang Sujuan, Zhang Yulin, Xu Xi
{"title":"Research on Assisted Strategy of Fault Line Selecting Method for Single-phase Ground Fault in Distribution Netword Base on Automation System","authors":"Zhang Beibei, Z. Jiaqi, Wang Yuanyuan, Huang Sujuan, Zhang Yulin, Xu Xi","doi":"10.1109/CICED50259.2021.9556673","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556673","url":null,"abstract":"In order to effectively improve the working efficiency of dispatchers using the ‘pull test method’ for single-phase ground fault line selection, this paper presents avariety of steady-state electrical quantities such as voltage, current, and reactive power obtained based on the distribution automation system, and combined with the line topology to generate fault line selection auxiliary strategies for different grounding systems that based on the superposition of multi-dimensional elements. Explained the technical principle of identifying the nature and phase of ground faults. Analyzed and introduced the organic fusion technology of fault features in multiple dimensions such as zero-sequence current amplitude, zero-sequence current mutation, reactive power mutation, etc. for different grounding methods and arc suppression coil compensation modes. Than formed \"pull test\"sequence of all lines. The proposed method does not require the addition of special hardware equipment or the transformation of the neutral point of the substation, not only saves investment, but also effectively reduces the number of line test pulls, and realizes rapid identification and accurate line selection of single-phase ground faults. The feasibility and applicability of this method were demonstrated in combination with specific projects.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126031450","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 Real-time Digital Simulation System for Distribution Network 配电网实时数字仿真系统
2021 China International Conference on Electricity Distribution (CICED) Pub Date : 2021-04-07 DOI: 10.1109/CICED50259.2021.9556787
Xu Quan, Lian Yin, Y. Zhiyong, L. Yuehuan, Li Yinliang, He Siming
{"title":"The Real-time Digital Simulation System for Distribution Network","authors":"Xu Quan, Lian Yin, Y. Zhiyong, L. Yuehuan, Li Yinliang, He Siming","doi":"10.1109/CICED50259.2021.9556787","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556787","url":null,"abstract":"With the access of large-scale distributed power and electric vehicles, the operation state of modern distribution network is more complex and changeable. In this paper, kinds of operation scenarios that may occur in the field operation of the system are fully considered. Combined with the wide area measurement and control system function of the distribution network, the test scheme is designed based on the actual distribution network and a typical test case is established. The typical network parameters of the actual distribution network are calculated and a typical 28-nodes distribution network simulation example is established. The artificial short circuit test based on unmanned aerial vehicle is carried out to verify the correctness of the simulation example. The test results verify the correctness of the proposed example. Based on the real-time digital simulation system and dynamic simulation experiment system, the test platform of wide area measurement and control system in distribution network is built. Through the multi scene real-time digital simulation test, the state estimation, fault diagnosis and positioning, coordinated control and other advanced application control effects can be checked. Through the hardware in the loop test and dynamic simulation experiment based on real-time digital simulation, the distribution network Phasor Measurement Unit (DPMU) and master station of distribution network wide area measurement control system can be tested.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124929127","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: 2
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