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

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Modeling and Prediction of Radiated Electromagnetic Interference for DC-DC Power Converter DC-DC功率变换器辐射电磁干扰建模与预测
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475657
Chuang Bi, Liang-Bing Zhao, Rong Hu, Qiang Li, Lin Cheng
{"title":"Modeling and Prediction of Radiated Electromagnetic Interference for DC-DC Power Converter","authors":"Chuang Bi, Liang-Bing Zhao, Rong Hu, Qiang Li, Lin Cheng","doi":"10.1109/CEEPE51765.2021.9475657","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475657","url":null,"abstract":"This paper develops modeling technique of the radiated electromagnetic interference (EMI) in DC-DC power converters with power cables. Firstly, an equivalent two terminal model based on Thevenin’s and Norton’s theorem is proposed to reveal the generation of the common mode (CM) current. Then, the antenna models are also developed, where the interaction between the noise source and the undesired antenna in the power converter’s CM path is explored in detail. The spectrum of CM currents is extracted for power converter and the developed models are used to predict the radiated EMI from power converter with attached power cable. Experiments are conducted to validate the spectrum of CM current, and the predicted radiated emissions for power converter agree well with the experimental results.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"23 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":"125323655","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
Operational Environment Analysis of HVDC Converter Station for Development of Energy Harvester: Electromagnetic Field and Ambient Power Source 用于能量采集器开发的高压直流换流站运行环境分析:电磁场与环境电源
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475646
Tian Lan, Qinwei He, Yuanliang Lan, Tao Guo, Yi Sun
{"title":"Operational Environment Analysis of HVDC Converter Station for Development of Energy Harvester: Electromagnetic Field and Ambient Power Source","authors":"Tian Lan, Qinwei He, Yuanliang Lan, Tao Guo, Yi Sun","doi":"10.1109/CEEPE51765.2021.9475646","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475646","url":null,"abstract":"Online condition monitoring for High Voltage Direct Current (HVDC) converters are getting more important. This could be achieved by embedding sensor nodes for monitoring the critical Multiphysics phenomena that indicate the healthy conditions of the components as well as the system. To facilitate the sensor node development, it would be beneficial to investigate the environmental condition, to which the development of sensor nodes as well as the energy harvester is subjected. Analysis of the electromagnetic field as well as the ambient power source are the focus of this paper. Moreover, it is shown how the electromagnetic field and ambient power source would affect the development of the sensor nodes","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"26 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":"126104669","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: 3
Risk Assessment of Minimum Design Environmental Temperature for Gas Insulation Combined Electrical Equipment 气体绝缘组合电气设备最低设计环境温度的风险评估
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475819
W. Lu, Yongming Li, Sheng Su, Nannan Zhang, Li Mu
{"title":"Risk Assessment of Minimum Design Environmental Temperature for Gas Insulation Combined Electrical Equipment","authors":"W. Lu, Yongming Li, Sheng Su, Nannan Zhang, Li Mu","doi":"10.1109/CEEPE51765.2021.9475819","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475819","url":null,"abstract":"Electrical conductors and electrical equipment were selected according to the mean of annual lowest temperature, and it was of high likelihood to suffer abnormal lower temperature than its designed criterion. Sealing component of Gas Insulated switchgear (GIS) should be designed based on the criterion of minimum temperature, which could avoid the risk of large-area SF6 leakage accidents causing by ultra-design low temperature. Nine stations in Shandong Province were selected as the research objects, and the temperature observation data from 1973 to 2016 were investigated in the manuscript. The risk level of extreme temperature lower than the design criterion was calculated with Generalized Extreme Value (GEV) distribution according to the annual minimum temperatures determined by the current regulations. Furthermore, the risk of encountering ultra-design low temperature were also evaluated based on the local historical observation minimum temperature and the minimum design temperature in typical areas, which could provide theoretical support and application reference for optimizing the design temperature of power transmission and transformation equipment.","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":"127099145","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
Influence of Reactive Power Optimization on Renewable Energy Accommodation and Its Evaluation Method 无功优化对可再生能源调节的影响及其评价方法
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475761
Qifeng Li, Changhong Deng, Taiyuan Qi, Xiaokan Gou, Dagui Liu, Weiwei Hu
{"title":"Influence of Reactive Power Optimization on Renewable Energy Accommodation and Its Evaluation Method","authors":"Qifeng Li, Changhong Deng, Taiyuan Qi, Xiaokan Gou, Dagui Liu, Weiwei Hu","doi":"10.1109/CEEPE51765.2021.9475761","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475761","url":null,"abstract":"With the large-scale renewable energy integrated into the power grid, the reverse power flow of the line has increased, causing the voltage to exceed the limit, and then adversely affecting the accommodation level of the power grid. Reactive power optimization can alleviate the voltage problems, and thereby improve the level of renewable energy accommodation. This paper firstly adopts the Monte Carlo-based probabilistic power flow algorithm to propose two accommodation evaluation indicators to reasonably evaluate the accommodation capacity of an actual large power grid; then without reducing the active power of renewable energy sources, using its own reactive power control capability to optimize the power grid’s voltage, and the effect of reactive power optimization on the level of accommodation is studied.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"35 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":"121279175","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 Unified Power Flow Model for Three-phase Transformers in Medium and Low Voltage Distribution Networks 中低压配电网三相变压器统一潮流模型
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475846
Zhengmei Lu, Wei Yan, Dezhi Huang, Weiyan Qian
{"title":"A Unified Power Flow Model for Three-phase Transformers in Medium and Low Voltage Distribution Networks","authors":"Zhengmei Lu, Wei Yan, Dezhi Huang, Weiyan Qian","doi":"10.1109/CEEPE51765.2021.9475846","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475846","url":null,"abstract":"The transformer model is a particularly important part of the power system. Currently, some researchers are committed to building a more accurate transformer model. Based on the existing transformer $pi$ type equivalent circuit, this paper proposes a concise unified power flow model for three-phase transformers in the medium and low voltage distribution network. The model built in this paper considers the influence of the zero-sequence current path on leakage admittance and excitation admittance. Simultaneously, the symmetrical component method is used to express the influence of interphase coupling, and the phase shift matrix is introduced to realize the different phase shift relations. Based on the IEEE 4 bus system, the effectiveness of the unified power flow model is verified.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"15 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":"125860728","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
Economic Dispatch of Wind-hydro-thermal Power Systems Considering Reservoir Flexibility 考虑储层灵活性的风水热发电系统经济调度
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475728
W. Dai, Ceheng Luo, Yiming Li, H. Goh, Dongdong Zhang, Thomas Wu
{"title":"Economic Dispatch of Wind-hydro-thermal Power Systems Considering Reservoir Flexibility","authors":"W. Dai, Ceheng Luo, Yiming Li, H. Goh, Dongdong Zhang, Thomas Wu","doi":"10.1109/CEEPE51765.2021.9475728","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475728","url":null,"abstract":"Confronted with considerable intermittence and variability of wind power, the flexibility of the power system that balances the uncertainties is gradually inadequate. Power systems are confronted with a huge challenge of renewable energy integration under insufficient flexibility. Therefore, this paper proposes an economic dispatch model for wind-hydro-thermal power system considering the reservoir flexibility. Through establishing a dynamic control model of flood limit water level (FLWL), the flexibility of reservoir shrunken by the static FLWL in flood season is exploited. This dynamic model is based on the pre-released capacity constraint method and real-time forecast information, which can improve the flexibility of the reservoir without increasing the flood control risk. Simulation results on the IEEE 30-bus system verify the effectiveness of the proposed model.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"7 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":"123303490","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 Determination of the Calculation Area of Ion Flow Field under HVDC Transmission Lines with Different Crossing Angles 不同交叉角高压直流输电线路下离子流场计算面积的确定
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475765
Jing Cai, Li Xie, T. Lu
{"title":"The Determination of the Calculation Area of Ion Flow Field under HVDC Transmission Lines with Different Crossing Angles","authors":"Jing Cai, Li Xie, T. Lu","doi":"10.1109/CEEPE51765.2021.9475765","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475765","url":null,"abstract":"In this paper, the charge simulation method (CSM) and the 3D upstream finite element method (FEM) are used to calculate the ion flow field in the crossing region of HVDC transmission lines. First, in order to model the high-voltage direct current (HVDC) overhead lines with arbitrary crossing angles, the cylindrical calculation area is adopted. Then, combined with the position of the intersection point, a method for determining the artificial boundary with any crossing angle is proposed. Under the premise of ensuring the calculation accuracy, the modeling region is given to reduce the amount of 3D calculation. Finally, the method is used to analyze the ground-level electric field in the crossing area of $pm 500kV$ lines, and the influence of the crossing angle on the ion flow field is studied. In addition, the relationship between the position of the peak of ground-level electric field and the crossing point is given, which provides a theoretical reference for the crossing of HVDC transmission lines in engineering practice.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"11 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":"126858838","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
Electric Power Material Demand Forecasting Based on LSTM and GM-BP methods 基于LSTM和GM-BP方法的电力材料需求预测
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475831
Haifeng Yu, Liangyun Song, Weiming Zhu, Xinya Wang, Guozhong Ding, S. Xia
{"title":"Electric Power Material Demand Forecasting Based on LSTM and GM-BP methods","authors":"Haifeng Yu, Liangyun Song, Weiming Zhu, Xinya Wang, Guozhong Ding, S. Xia","doi":"10.1109/CEEPE51765.2021.9475831","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475831","url":null,"abstract":"Electric power material demand forecasting is an important part of power grid planning management, which helps to save power industrial costs and improve capital utilization of power companies. Due to the irregularity of historical data for electric power materials, the characteristic of electric power material demand is complicated and power grid companies lack accurate forecasting methods. By identifying the continuous and intermittent characteristics of electric power material demand, this paper separately designs the Long Short-Term Memory (LSTM) method, and the Grey prediction Model based BP neural network (GM-BP) method to individually forecast the electric power material demand with different demand characteristics. Finally, the proposed methods are tested by the practical data of an electric power enterprise, and simulation results validate that the proposed methods can effectively adapt to different features of electric power material demand as well as predict electric power material demand with good accuracy.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"50 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":"127470457","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 the Secondary System Test Scheme for the Expansion Project of 500kV Hydropower Station 500kV水电站扩建工程二次系统试验方案研究
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475793
Yonglong Li
{"title":"Study on the Secondary System Test Scheme for the Expansion Project of 500kV Hydropower Station","authors":"Yonglong Li","doi":"10.1109/CEEPE51765.2021.9475793","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475793","url":null,"abstract":"During the trough period after the grid-connected power generation of an Hydropower Station, due to the high bus voltage, the generator is in under - excitation operation for a long time, and the guide vane opening of the water turbine unit is small, and operation in the vibration zone will cause some damage to the water turbine unit, which can be solved by installing a high-voltage parallel reactor. The expansion under the full shutdown mode will seriously affect the economic benefits of hydropower stations and the grid structure. Therefore, this research studies the secondary system test scheme for the expansion project of 500kV hydropower station under the partial shutdown mode, and analysis in detail the changes of the protection configuration in the past during the expansion process. According to the analysis results, debugging methods such as the circuit wiring that needs to be removed after the protection configuration changes and the arrangement of secondary safety measures in this mode are put forward to eliminate potential safety hazards during the test. Through the expansion project of an Hydropower Station, the scheme demonstrates a highly secure and reliable solution that could also be referred to the future expansion of the hydropower station.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"1 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":"129206243","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
Wide-load Economy Calculation and Analysis of 660MW Power Plant with No.0 High Pressure Heater 660MW电厂0号高压加热器大负荷经济性计算与分析
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475681
H. Xu, Zhe Wang
{"title":"Wide-load Economy Calculation and Analysis of 660MW Power Plant with No.0 High Pressure Heater","authors":"H. Xu, Zhe Wang","doi":"10.1109/CEEPE51765.2021.9475681","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475681","url":null,"abstract":"The economic operation of No.0 high pressure heater system has been researched in the 660MW power plant unit. And the heat consumption, feed-water temperature and inlet flue gas temperature of the unit has been analysised under the 100%,85%,75%,70%,65%,60%,55% and 50% THA load. According to the unit’s performance, the boiler’s feed-water requirements, the changes of properties, the equipment manufacturing feasibility and many comprehensive factors analysis, the economy calculation and analysis has completed in 660MW ultra supercritical power unit.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"184 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":"131640883","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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