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2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)最新文献

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Uncertainty Analysis of Wind Power Based on Operating Data 基于运行数据的风电不确定性分析
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475711
Yuehui Huang, Pai Li, Yanan Sun
{"title":"Uncertainty Analysis of Wind Power Based on Operating Data","authors":"Yuehui Huang, Pai Li, Yanan Sun","doi":"10.1109/CEEPE51765.2021.9475711","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475711","url":null,"abstract":"The uncertainty of wind power prediction has a serious impact on the stable operation of power system. In this paper, the actual operation data of 200 wind farms in a certain area of China are collected, and the wind farm stations are divided into different scale station clusters according to the integration location of the grid. The distribution characteristics of wind power prediction error of station clusters are analyzed. Then, based on the prediction error and power correlation characteristics, a clustering segmentation prediction error analysis method is proposed. Finally, the nonparametric kernel density estimation is used to fit the prediction error of station cluster, and the fitting precision evaluation indexes are compared to verify the applicability and effectiveness of the proposed method for the prediction error distribution of station cluster.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127213778","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
Adaptability Evaluation of Multi-Send HVDC Power Grid Planning Schemes 多发直流电网规划方案的适应性评价
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475804
Weiting Xu, Ronghua Wang, Yu Zhen, Ting Li, Yunling Wang, Y. Wen
{"title":"Adaptability Evaluation of Multi-Send HVDC Power Grid Planning Schemes","authors":"Weiting Xu, Ronghua Wang, Yu Zhen, Ting Li, Yunling Wang, Y. Wen","doi":"10.1109/CEEPE51765.2021.9475804","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475804","url":null,"abstract":"With the intensive outfeed of large-capacity high voltage direct current (HVDC) transmission links, the grid pattern, operational paradigm, and stability characteristics of the sending-end grid have undergone profound changes. In this paper, an evaluation index system is proposed to evaluate the adaptability of expansion planning schemes of the sending-end power grid with multiple HVDC links. The constructed evaluation index system comprehensively takes into account four aspects: economic development, generation mix, system strength, as well as security and stability. According to given grid planning schemes, the realization process of the evaluation index system is proposed to assessment the adaptability of the multi-send HVDC power grid. Sichuan Grid, a large-scale provincial power system in China, is taken as an example to compare the evaluation results under different expansion planning schemes.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123361235","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
Analysis and Design of Single Stage LLC Resonant Converter with High Power Factor 高功率因数单级LLC谐振变换器的分析与设计
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475700
Feiyue Duan, X. Hao, Lang Huang, Tao Liu
{"title":"Analysis and Design of Single Stage LLC Resonant Converter with High Power Factor","authors":"Feiyue Duan, X. Hao, Lang Huang, Tao Liu","doi":"10.1109/CEEPE51765.2021.9475700","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475700","url":null,"abstract":"A novel single stage LLC resonant converter with high power factor is proposed in this paper. The basic principle of single stage LLC resonant converter with high power factor is analyzed. The design consideration of this converter is illustrated for ensuring the voltage gain of the converter always meeting the requirements of high power factor during half line cycle. Finally, a design example of 100W single stage LLC converter prototype is established to verify the theoretical analysis.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122998180","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 a Conformity Assessment Testing Method for Smart Distribution Transformer Terminal Software Application 智能配电变压器终端软件应用的合格评定测试方法研究
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475774
Mingyu Zhang, Peng Wang, W. Sheng, Sijun Qin, Shuaitao Bai, Shen Guo
{"title":"Research on a Conformity Assessment Testing Method for Smart Distribution Transformer Terminal Software Application","authors":"Mingyu Zhang, Peng Wang, W. Sheng, Sijun Qin, Shuaitao Bai, Shen Guo","doi":"10.1109/CEEPE51765.2021.9475774","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475774","url":null,"abstract":"This paper proposes a conformity assessment testing method for software application used in smart distribution transformer terminal. The terminal is a new kind of software-defined terminal which applications could be adjusted flexibly and cheaply. The terminal is applied in urban distribution network from the year 2019. Based on the general situation of smart distribution transformer terminal software application, the testing method is divided into two parts: source code testing and execution program testing. Then, this paper points out the basic technical principles that should be followed in the testing work, defines the software and hardware equipment needed to build the testing environment, and puts forward the specific testing methods and the analysis focus of the testing results. Finally, an example of smart distribution transformer terminal software application (APP) testing is given. The testing method has been used in the State Grid Corporation of China, nearly 30,000 smart transformer terminals in Shandong, Jiangsu, Zhejiang and other provinces have been tested by this method, and the practice proves that the testing method is feasible. In future, the testing method also could be used in other software-defined distribution terminals unit, such as feeder terminal unit, data transfer unit, etc. It is an reliably guarantee for using software-defined technology in urban distribution network.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125245307","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 Health Status of Photovoltaic System Based on Fuzzy C-means Clustering 基于模糊c均值聚类的光伏系统健康状态研究
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475714
Xueying Yu, Chunhua Wu, Zhihua Li, Haoqiang Ma
{"title":"Research on Health Status of Photovoltaic System Based on Fuzzy C-means Clustering","authors":"Xueying Yu, Chunhua Wu, Zhihua Li, Haoqiang Ma","doi":"10.1109/CEEPE51765.2021.9475714","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475714","url":null,"abstract":"With the continuous innovation of technology, it becomes especially important to predict and prevent PV system failure in advance and ensure the reliability of the system operation. By analyzing the aging phenomenon of PV modules and the corresponding changes of PV model parameters, this paper summarizes the three factors that affect the health state of PV system, namely transmittance, series resistance and shunt resistance. A fuzzy algorithm to classify the PV system health status into \"Health\", \"Sub-Health\" and \"Fault\" is proposed. Firstly, the fuzzy C-means (FCM) clustering method is used to obtain the clustering centers of the sample data set of the PV array. Then, the health state is diagnosed by applying the normal distribution membership function. Finally, the feasibility of the proposed method is verified by MATLAB/Simulation.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131591308","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 Miniature Smart Voltage Sensor 微型智能电压传感器
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475656
Zhiming Wang, K. Zhou, Jiaming Zhang, Peng Li, Licheng Li, B. Tian
{"title":"A Miniature Smart Voltage Sensor","authors":"Zhiming Wang, K. Zhou, Jiaming Zhang, Peng Li, Licheng Li, B. Tian","doi":"10.1109/CEEPE51765.2021.9475656","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475656","url":null,"abstract":"Based on the capacitor voltage divider method, a miniature smart voltage sensing method is proposed, which employs a scheme that dynamically measures the coupling capacitor between the voltage sensor and the ground. Then a prototype of miniature smart voltage sensor (MSVS) is developed. The Performance of the proposed method is evaluated through theoretical analysis and experimental tests. The experimental tests show that the MSVS has high precision, good linearity and certain high-frequency signal acquisition capability.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"198 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133243370","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
Analysis of Dynamic Interaction in Wind-Storage Virtual Synchronous Generator Integrated System 风储虚拟同步发电机集成系统动态交互分析
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475795
Shilou Huang, Tong Wang, Mingxin Jin, T. Ji
{"title":"Analysis of Dynamic Interaction in Wind-Storage Virtual Synchronous Generator Integrated System","authors":"Shilou Huang, Tong Wang, Mingxin Jin, T. Ji","doi":"10.1109/CEEPE51765.2021.9475795","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475795","url":null,"abstract":"In order to quantify the dynamic interaction in wind-storage virtual synchronous generator (VSG) integrated system, this paper proposes a dynamic index based on damping torque analysis. Firstly, the dynamic model of wind-storage VSG is built, including the permanent magnet synchronous generator (PMSG), the energy storage unit, converters and the control systems, and the state-space model and transfer function are derived. Then, by combining the state-space model of multi-machine power system, the dynamic interaction model between the wind-storage VSG and multi-machine power system with the power and voltage as the transmission channel is established. Next, theoretical derivation of the dynamic index is presented by utilizing the transfer function between angular frequency and voltage. Finally, the modified 4-machine 2-area system with 2 wind-storage VSGs is used as test system to verify the effectiveness of the index proposed, and the simulation results demonstrate that the index could quantify the dynamic interaction in wind-storage VSGs integrated system and be used for the parameter optimization of wind-storage VSG.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131906816","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
Optimal Solution Discrimination of an Analytic Model for Power Grid Fault Diagnosis Employing Electrical Criterion 基于电准则的电网故障诊断分析模型的最优解判别
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475746
Shoupeng Wang, Sitong Dong, Yang Gao, Ke Lv, Yu Jiang, Libin Zhang
{"title":"Optimal Solution Discrimination of an Analytic Model for Power Grid Fault Diagnosis Employing Electrical Criterion","authors":"Shoupeng Wang, Sitong Dong, Yang Gao, Ke Lv, Yu Jiang, Libin Zhang","doi":"10.1109/CEEPE51765.2021.9475746","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475746","url":null,"abstract":"When a fault occurs in power grid, the analytic model for power grid fault diagnosis could generate multiple solutions under one or more protective relays (PRs) and/or circuit breakers (CBs) malfunctioning, and/or one or more their alarm information failing. Hence, this paper, calling the electrical quantities, presents an optimal solution discrimination method, which determines the optimal solution by constructing the electrical criteria of suspicious faulty components. Furthermore, combining the established electrical criteria with the existing analytic model, a hierarchical fault diagnosis mode is proposed. It uses the analytic model for the first level diagnosis based on the switching quantities. Thereafter, aiming at multiple solutions, it applies the electrical criteria for the second level diagnosis to determine the diagnostic result. Finally, the examples of fault diagnosis demonstrate the feasibility and effectiveness of the developed method.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124484709","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
Probabilistic Feasible Region Equivalent Model for Reliability Evaluation in Interconnected Power System 互联电力系统可靠性评估的概率可行域等效模型
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475843
Jinkun Gao, Juan Yu, Juelin Liu, P. Zhou, Zhong Chen, Junbo Zhao
{"title":"Probabilistic Feasible Region Equivalent Model for Reliability Evaluation in Interconnected Power System","authors":"Jinkun Gao, Juan Yu, Juelin Liu, P. Zhou, Zhong Chen, Junbo Zhao","doi":"10.1109/CEEPE51765.2021.9475843","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475843","url":null,"abstract":"For a large interconnected power system, the connections between subsystems are getting closer. The influence of the external area (EA) must be considered when the reliability of the internal area (IA) is analyzed. The equivalent method is widely used in the reliability analysis of interconnected power systems to improve the efficiency of evaluation. This paper proposes a high-accuracy tie-line probabilistic feasible region equivalent model, which replaces the traditional network flow method with the multi-objective optimal power flow. Based on the “not loss of load sharing agreement”, the feasible region states of the equivalent tie line are combined to further simplify the reliability assessment. Simulation results of IEEE 9-bus and IEEE-118 bus systems demonstrate the efficiency and accuracy of the proposed equivalent model and its effectiveness in reliability assessment.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133495700","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
Study on Parameter Unbalance of 500 kV Double Circuit Cable Line Considering Different Arrangement 考虑不同布置方式的500kv双回电缆线路参数不平衡研究
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475678
Ren Hongtao, Zheng Shanshan
{"title":"Study on Parameter Unbalance of 500 kV Double Circuit Cable Line Considering Different Arrangement","authors":"Ren Hongtao, Zheng Shanshan","doi":"10.1109/CEEPE51765.2021.9475678","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475678","url":null,"abstract":"The balance of line parameters has an important impact on the safe operation of power grid. In this paper, the electromagnetic transient simulation program (EMTP) is used to calculate and analyze the unbalanced degree of the parameters of the double circuit cable lines with different arrangements such as horizontal, vertical and zigzag. The results show that: the cross-linking of cable metal sheath and grounding resistance have a certain influence on cable sequence impedance, the cable arrangement and cross-linking of metal sheath affect the negative sequence imbalance of the line, and the electromagnetic imbalance of the line can reach the lowest when ABC/CBA phase sequence arrangement is adopted in the horizontal arrangement of double circuit cable lines.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115444997","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
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