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

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Convolutional LSTM-based Frequency Nadir Prediction 基于卷积lstm的频率最低点预测
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475832
Qingyue Chen, Xiaoru Wang, Jintian Lin, Long Chen
{"title":"Convolutional LSTM-based Frequency Nadir Prediction","authors":"Qingyue Chen, Xiaoru Wang, Jintian Lin, Long Chen","doi":"10.1109/CEEPE51765.2021.9475832","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475832","url":null,"abstract":"The frequency nadir of post-disturbance power system is crucial to system stability. To predict this value fast and accurately provides a valuable reference for online security and stability control strategies. As methods based on physical models and shallow learning are getting harder and harder to improve prediction performance, this paper proposes a method for predicting frequency nadir of power system based on convolutional long short-term memory (ConvLSTM) network, fully exploiting temporal and spatial dependencies from measurement data. This approach takes four measured electrical quantities related to frequency dynamics as model inputs and improves the prediction model by adjusting input time series. The experiment of the New England system shows that the proposed model performs better than machine learning methods e-SVR and LSTM. Moreover, it is effective even with incomplete measurement data due to data loss or configuration of measuring devices.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"6 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":"132627238","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
An Orderly Charging Strategy of Electric Vehicles Based on TOPSIS 基于TOPSIS的电动汽车有序充电策略
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475663
Weiyan Zheng, Xianghai Xu, Libo Fan, Yanping Jiang, Jing Wu, P. Yang
{"title":"An Orderly Charging Strategy of Electric Vehicles Based on TOPSIS","authors":"Weiyan Zheng, Xianghai Xu, Libo Fan, Yanping Jiang, Jing Wu, P. Yang","doi":"10.1109/CEEPE51765.2021.9475663","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475663","url":null,"abstract":"An orderly charging strategy for electric vehicles based on TOPSIS to solve the problem that distribution transformers in old residential areas cannot meet the collective charging needs of a large number of electric vehicles is proposed. The charging management structure of residential areas is analyzed. The probability distribution of electric vehicles travel characteristics considering the charging needs of users is determined. The TOPSIS algorithm is proposed to control the priority of electric vehicles queuing charging with the goal of maximizing the charging demand satisfaction rate and minimizing the standard deviation of the distribution transformer load. The results of calculation examples show that the method proposed in this paper can reduce the charging load of electric vehicles during peak load periods in residential areas within the safety level of the distribution network, fully improve the charging demand of electric vehicles and achieve a balance between the grid and electric vehicles.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"214 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":"131868577","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 Topology and Control Strategy of Energy Router Based on Multi-station Integration System 基于多站集成系统的能源路由器拓扑与控制策略研究
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475805
Junyao Wang, Shifeng Shi, Qingguang Yu, Zhicheng Jiang, Xu Han, Xiaolan Bai
{"title":"Research on Topology and Control Strategy of Energy Router Based on Multi-station Integration System","authors":"Junyao Wang, Shifeng Shi, Qingguang Yu, Zhicheng Jiang, Xu Han, Xiaolan Bai","doi":"10.1109/CEEPE51765.2021.9475805","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475805","url":null,"abstract":"With the further development of distributed renewable power generation, its randomness and volatility greatly affect the renewable energy consumption and the safe and stable operation of the grid. To address this problem, researchers have proposed the concept of energy Internet to enhance the control and scheduling capability of the power grid through power electronics technology, so as to solve the challenges brought by renewable energy generation to the power grid. Energy routers, as the core equipment of the energy Internet, have received extensive attention in recent years. This paper introduces the typical topology of energy router based on the three-stage structure of input stage, isolation stage and output stage, and briefly describes the control strategy corresponding to the three-stage structure. The coordinated control strategy of the energy router is proposed in this paper and the effect of the control strategy is verified based on the simulation result of multi-station integration system.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"37 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":"124381450","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 Detection of Faulty Insulators Using Optical Sensors 利用光学传感器检测绝缘子故障的研究
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475830
Hongfeng Ma, Youchong Duan, Zhongkai Xu, Z. Liu, Feng Guo
{"title":"Research on Detection of Faulty Insulators Using Optical Sensors","authors":"Hongfeng Ma, Youchong Duan, Zhongkai Xu, Z. Liu, Feng Guo","doi":"10.1109/CEEPE51765.2021.9475830","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475830","url":null,"abstract":"Insulators are important parts of transmission lines. The reliability and stability of their operation determine the safe operation of power systems. Therefore, the regular inspection of faulty insulators is one of the essential tasks in the operation and maintenance of transmission lines. In this paper, an insulator detection method based on fiber-optic electric field sensor is proposed, the test results show that the deterioration of the insulator at the high voltage end, the low voltage end and the middle part can be identified by the results. It shows that the detection method proposed in this paper can be an effective method for detecting faulty insulators on transmission lines","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"34 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":"117164170","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 Trajectory Planning Based VSC Control Strategy for Power System Frequency Regulation 基于频率轨迹规划的电力系统频率调节VSC控制策略
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475734
L. Xiong, Lei Liu, Xiaokang Liu, Yonghui Liu
{"title":"Frequency Trajectory Planning Based VSC Control Strategy for Power System Frequency Regulation","authors":"L. Xiong, Lei Liu, Xiaokang Liu, Yonghui Liu","doi":"10.1109/CEEPE51765.2021.9475734","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475734","url":null,"abstract":"To ensure frequency stability of low inertia power systems, VSC needs to provide frequency response (FR) service. Limited by predicting grid inertia/damping and disturbances that are difficult to measure, the FR performance is greatly restricted. Besides, excessive response under certain conditions results in several consequences, including 1) energy waste, and 2) the VSC power frequently and excessively deviating from steady-state points, thereby reducing the component’s life, lowering system safety/reliability, and increasing the risk of VSC overcurrent faults. To solve these issues, this paper proposes the frequency trajectory planning (FTP) based FR strategy, with the fundamental idea to actively plan the frequency trajectory with necessary safety margin in accordance with the grid code. Specifically, if the system frequency locates within the range of planned one (suggesting frequency indexes satisfying the requirement), VSC remains at the steady-state point to avoid excessive FR service; otherwise, the FR service is required, and the FTP control is enabled to closely track the planned trajectory. By fulfilling the tracking purpose, the requirement on system frequency indexes is met, frequency stability is guaranteed, and the over-response is avoided. Namely, the planned trajectory can characterize whether the system requires FR service and whether the provided FR service is sufficient or excessive. Additionally, the method needs no measurement of inertia/damping and disturbances of the system, and can be directly integrated into the commonly used VSC control systems. Finally, experiments prove the effectiveness and advancement of the FTP strategy.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"142 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":"116326699","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
A Novel Remote Multi-Sensing Energy Management System Based on Power-Over-Fiber Transmission 一种基于光纤供电传输的遥感能源管理系统
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475697
Yuemei Li, Ziyang Xiao, Zhiguo Zhang, L. Li
{"title":"A Novel Remote Multi-Sensing Energy Management System Based on Power-Over-Fiber Transmission","authors":"Yuemei Li, Ziyang Xiao, Zhiguo Zhang, L. Li","doi":"10.1109/CEEPE51765.2021.9475697","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475697","url":null,"abstract":"In this study, we develop a novel multi-sensing functional system based on Power-Over-Fiber (POF) technique. This system is characterized by its versatility, ultra low energy harvesting and management and remote equipment low consumption. An unusual energy management unit is designed, applied, and realized ultra-low energy collection. We use gallium arsenide as the photoelectric (PV) conversion unit in the system and design intelligent ultra-low power management unit utilization and management the energy of laser power into electricity. It provides a clever idea to solving power requirement of high consumption sensing equipment and promotes the practical application of the POF technology. To using energy more efficiently, a simulation model based on finite elements has been developed for the photovoltaic system. It presents a comprehensive numerical investigation on the effect of the performance of the photovoltaic cell using COMSOL 5.5 Multiphysics software. In addition, it has been used in water monitoring and data transmission stably for a long time.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"171 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":"116358619","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
Generalized Impedance Sensitivity Based Sub- /Super-synchronous Mitigation Scheme in D-PMSG Wind Farm 基于广义阻抗灵敏度的D-PMSG风电场亚/超同步缓解方案
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475828
Ruixin Shen, Songhao Yang, Z. Hao, Baohui Zhang
{"title":"Generalized Impedance Sensitivity Based Sub- /Super-synchronous Mitigation Scheme in D-PMSG Wind Farm","authors":"Ruixin Shen, Songhao Yang, Z. Hao, Baohui Zhang","doi":"10.1109/CEEPE51765.2021.9475828","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475828","url":null,"abstract":"Several sub-/super-oscillation (SSO) accidents occurred led by grid integration of D-PMSG wind farm seriously affected the safe and stable operation of the power system. Therefore, it is urgent to find a solution to effectively mitigate SSO. At present, the research on the direct-drive permanent magnet synchronous generators (D-PMSG) wind farm integrated power system is mainly focused on the interaction between a single unit or the overall wind farm and the system. There is a lack of research on the participation degree of units with different control parameters once SSO occurs. To fill this gap, this paper proposes the concept of generalized impedance sensitivity. It finds units that are more capacitive than other units under the condition of unit’s impedance changing: prone-to-oscillate unit and relatively prone-to-oscillate unit. Based on this, a suppression scheme is proposed to add damping only at the prone-to-oscillate units and the relative ones. The time-domain simulation verifies the conclusion that the prone-to-oscillate units and relative ones have a high degree of SSO participation and the effectiveness of the mitigation scheme.","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":"123711175","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 Calculation Method for Levied Peak Electricity Price Dealing with Virtual Power Plant Peak Shaving Subsidy 考虑虚拟电厂调峰补贴的调峰电价计算方法
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475740
Tian Mao, Leping Sun, Pingping Xie, Wanlu Wu, Shuai Han, Xiaoxuan Guo
{"title":"A Calculation Method for Levied Peak Electricity Price Dealing with Virtual Power Plant Peak Shaving Subsidy","authors":"Tian Mao, Leping Sun, Pingping Xie, Wanlu Wu, Shuai Han, Xiaoxuan Guo","doi":"10.1109/CEEPE51765.2021.9475740","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475740","url":null,"abstract":"The power grid is currently challenged by the ever increasing peak load and widening peak-to-valley difference, and the pressure to maintain the balance of power supply and demand is increasing. As a new generation of intelligent load aggregation and control technology, virtual power plant (VPP) can effectively guide users to participate in load demand response, thus promote the optimization of power grid and alleviate its operation burden. However, the success of VPP depends on the active participation of users, which is indispensable from sufficient subsidy funds. At present, an effective way to obtain VPP subsidy is to levy peak electricity price of large industrial loads. For existing levied peak electricity price method, the incremental value of peak electricity price is normally determined by artificial experience, while the actual load characteristics and VPP operation conditions have not been comprehensively considered. Therefore, it is unable to scientifically evaluate the peak electricity price increase required for the implementation of VPP. In this work, a method for assessing the levied peak electricity price to deal with VPP peak shaving subsidy is proposed. It comprehensively considers the actual power grid load, the VPP application demand as well as the condition of large industrial load. A simulation case presents the application of this method. In addition, the method is convenient to be deployed, thus provide an effective means for VPP levied price evaluations.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"30 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":"122071058","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
A Defect Model for Simulating Suspended Potential Discharge in GIS GIS中模拟悬浮电位放电的缺陷模型
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475735
Jiangong Ma, Yang Chen, Xiaojun Zhang, Ziliang Zheng, Meng Li
{"title":"A Defect Model for Simulating Suspended Potential Discharge in GIS","authors":"Jiangong Ma, Yang Chen, Xiaojun Zhang, Ziliang Zheng, Meng Li","doi":"10.1109/CEEPE51765.2021.9475735","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475735","url":null,"abstract":"GIS is an important power equipment in power system, which is the basis of ensuring power supply reliability. Although the reliability of GIS operation is very high, there are inevitable defects in GIS, such as partial discharge, insulation deterioration and equipment failure. A defect model is designed to simulate the suspended potential discharge in GIS, which can be used to simulate the common suspended potential discharge defects in GIS. It can be used to measure the partial discharge by combining the pulse current, UHF and decomposition component analysis methods, so as to promote the development of GIS partial discharge detection technology. The defect model consists of high voltage electrode, suspended potential body, ground electrode, fixture and SF6 gas. The results of partial discharge test show that the defect model can well simulate the suspended potential discharge in GIS equipment.","PeriodicalId":308213,"journal":{"name":"2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"31 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":"123980054","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
An Instantaneous Reactive Current Individual-phase Detection Method and Digital Realization Based on Fourier Transform 基于傅立叶变换的瞬时无功电流单相检测方法及数字化实现
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2021-04-23 DOI: 10.1109/CEEPE51765.2021.9475798
Sheng Xu, Lei Liu, W. Cao
{"title":"An Instantaneous Reactive Current Individual-phase Detection Method and Digital Realization Based on Fourier Transform","authors":"Sheng Xu, Lei Liu, W. Cao","doi":"10.1109/CEEPE51765.2021.9475798","DOIUrl":"https://doi.org/10.1109/CEEPE51765.2021.9475798","url":null,"abstract":"Currently, the frequency-domain detection methods based on Fourier Transform theory are widely used for reactive current detection, but they usually need the voltage phase information by means of phase locked loop (PLL), which will increase the algorithm complexity and may cause the reactive current detection errors. Therefore, this paper introduces an instantaneous reactive current detection method based on Fourier transform, which abandons the PLL to improve the comprehensive performance of the reactive current detection. Moreover, a synchronous tracking method for system frequency and a compensation strategy for the time delays derived from signal sampling, analog-digital conversion and detection algorithms are embedded in the proposed method, for the purpose of further reduce the reactive current detection errors. In addition, a digital realization means for this method based on recursive Discrete Fourier Transform (DFT) is introduced. The simulation and experimental results show that, with this novel method, the reactive currents could be individual-phase detected from the three-phase distorted unbalanced load currents accurately and quickly.","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":"129854375","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
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