2021 IEEE 4th International Electrical and Energy Conference (CIEEC)最新文献

Study on the Oscillation Center of DFIG-based Wind Farm Power System 基于dfig的风电场系统振荡中心研究

2021 IEEE 4th International Electrical and Energy Conference (CIEEC) Pub Date : 2021-05-28 DOI: 10.1109/CIEEC50170.2021.9510498

Xiaoqing Wei, Fei Tang, Yu Li, Fanghua Qin, Tongyan Zhang

{"title":"Study on the Oscillation Center of DFIG-based Wind Farm Power System","authors":"Xiaoqing Wei, Fei Tang, Yu Li, Fanghua Qin, Tongyan Zhang","doi":"10.1109/CIEEC50170.2021.9510498","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510498","url":null,"abstract":"Due to the characteristics of randomness, volatility and low inertia, the large-scale integration of new energy units has changed the original power flow distribution and deteriorated the transient stability of the system, resulting in the migration of the system oscillation center, which can even affect the accurate action of the splitting control. Aiming at the problem that the integration of doubly-fed induction generator (DFIG) affects the migration law of the oscillation center, firstly the Thevenin equivalent model of DFIG is constructed and the operating characteristics are analyzed. And then the equivalent admittance model of DFIG is constructed. Finally, based on the equivalent admittance model, the migration law of the oscillation center in the DFIG-based wind power system is analyzed. The results show that the out-of-step center (OOSC) moves away from the DFIG-based wind farm integration point when DFIG generates reactive power and moves close to the integration point when DFIG absorbs reactive power. While the migration range of the oscillation center extends to the entire line.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116892406","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

Interturn Short-Circuit Fault Diagnosis of PMSM for Small Hydropower 小水电永磁同步电机匝间短路故障诊断

2021 IEEE 4th International Electrical and Energy Conference (CIEEC) Pub Date : 2021-05-28 DOI: 10.1109/CIEEC50170.2021.9510832

Ling Fang, Xiaofei Zhang, Shoudao Huang, Jinping Xie, Zhuo Long, Fengqin Huang

引用次数: 0

Simulation and Design of Pulse Gas Injection in HFRC Device HFRC装置脉冲注气仿真与设计

2021 IEEE 4th International Electrical and Energy Conference (CIEEC) Pub Date : 2021-05-28 DOI: 10.1109/cieec50170.2021.9510455

Shenglu Li, B. Rao, Yong Yang, Ming Zhang

{"title":"Simulation and Design of Pulse Gas Injection in HFRC Device","authors":"Shenglu Li, B. Rao, Yong Yang, Ming Zhang","doi":"10.1109/cieec50170.2021.9510455","DOIUrl":"https://doi.org/10.1109/cieec50170.2021.9510455","url":null,"abstract":"In FRC experimental studies, it is found that the parameters of the plasma formed after the collision merging greatly depend on the plasma parameters of the formation zone. The design and optimization of the pulsed gas injection device will help the ionization of neutral gas and thereby improving the plasma parameters of the formation zone. In this paper, studies are focused mainly on the change process of gas distribution of pulse gas injection stage, and design of the pulse gas injection device. The research takes the control of gas distribution as the goal and ANSYS FLUENT as a simulation platform to carry out the study. First, in this paper, we introduce several gas injection schemes that can be used in the pulse gas injection device, and ANSYS Fluent is used for simulation comparison. Through the analysis of simulation results, we have determined the most suitable scheme for gas injection. Then, we analyze in detail the axial and radial distribution of neutral gas at different time under the optimal scheme. And the results show the advantages of multi-valve gas injection. Finally, we predict the appropriate time duration of gas injection and ionization time when the pressure source is 2 × 10^5 Pa.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117201769","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

Improved High-Precision Extraction Algorithm for Resistive Current of Three Phase Arresters 改进的三相避雷器阻性电流高精度提取算法

2021 IEEE 4th International Electrical and Energy Conference (CIEEC) Pub Date : 2021-05-28 DOI: 10.1109/CIEEC50170.2021.9510210

Zhenhua Long, Yongzhi Min, Z. Du

{"title":"Improved High-Precision Extraction Algorithm for Resistive Current of Three Phase Arresters","authors":"Zhenhua Long, Yongzhi Min, Z. Du","doi":"10.1109/CIEEC50170.2021.9510210","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510210","url":null,"abstract":"The on-line monitoring of arrester resistive leakage current can effectively judge the operation of arresters. The fundamental current and the third harmonic current are the key indicators to judge the aging and damp of arrester, which are particularly important for the on-line monitoring of Metal oxide surge arrester (MOA). However, due to the influence of interphase interference and harmonic voltage of power grid, the accuracy of on-line monitoring results is not high and there are large errors. In this paper, the self capacitance and stray capacitance of three-phase arrester are calculated to separate the capacitive current from the total leakage current, so as to effectively reduce the influence of interphase interference. At the same time, the influence of grid harmonics on resistive third harmonic current is compensated to improve the accuracy of resistive leakage current. The algorithm builds a simulation model on the MATLAB / Simulink platform, obtains the capacitance values by using the algorithm, and verifies the correctness of the algorithm by evaluating the error between the extracted resistive current value and the ideal resistive current value. In addition, by analyzing the influence of interphase interference under different voltage fluctuations and different total harmonic distortion rate of power grid, it is proved that the algorithm can effectively reduce the influence of interphase interference.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121047315","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 New Topology and Coordinated Control Strategy of Multi-Station Integrated System 一种新的多站集成系统拓扑与协调控制策略研究

2021 IEEE 4th International Electrical and Energy Conference (CIEEC) Pub Date : 2021-05-28 DOI: 10.1109/CIEEC50170.2021.9510649

Qunhai Huo, Wenyong Wang, Ningyu Zhang, Jingyuan Yin, Jin Zhu, Tongzhen Wei

{"title":"Research on a New Topology and Coordinated Control Strategy of Multi-Station Integrated System","authors":"Qunhai Huo, Wenyong Wang, Ningyu Zhang, Jingyuan Yin, Jin Zhu, Tongzhen Wei","doi":"10.1109/CIEEC50170.2021.9510649","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510649","url":null,"abstract":"With the rapid development of distributed power and new energy vehicles, the traditional distribution network is facing enormous challenges. The development of multi-station integration technology is an effective way to solve the above problems. In this paper, a new multi-station integration topology is proposed. The new multi-station integration topology uses soft open point (SOP) as the key equipment of the system, and adopts the hierarchical power supply mode for data center, electric vehicle charging pile and other function stations. Then, based on the new topology of multi-station integration and smooth switching of converter control mode, a coordinated control strategy is proposed. Through the coordinated control strategy to control the working mode of each function station, and then further optimize the system operation conditions. Based on Matlab/Simulink, the simulation model of multi-station integration is established, and two different application scenarios are analyzed. The simulation results verify that the new topology of multi-station integration and its coordinated control strategy effectively improve the voltage level of the distribution network, improves the reliability of sensitive load power supply, and ensure the safe and reliable operation of multi-station integration system.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121248872","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

Moisture Induced Weight Gain Relation to Capacitance Loss Characteristic of Film Capacitors under Harsh Enviroment 恶劣环境下薄膜电容器水分增重与电容损耗特性的关系

2021 IEEE 4th International Electrical and Energy Conference (CIEEC) Pub Date : 2021-05-28 DOI: 10.1109/cieec50170.2021.9510996

Zheng Li, Hua Li, Tian Qiu, Fuchang Lin, Yan Wang

引用次数: 1

Research on UHV GIS Bus Fault Location Method Based on Protection Action Behavior and Ultra-high Frequency Monitoring 基于保护动作行为和超高频监测的特高压GIS总线故障定位方法研究

2021 IEEE 4th International Electrical and Energy Conference (CIEEC) Pub Date : 2021-05-28 DOI: 10.1109/CIEEC50170.2021.9510747

Xiang Liu, Zhenyu Guo, Kun Hu, Mingyang Chen, Yuqi Zhou

引用次数: 0

Multiband PD location method based on the Granndo propagation model 基于Granndo传播模型的多波段PD定位方法

2021 IEEE 4th International Electrical and Energy Conference (CIEEC) Pub Date : 2021-05-28 DOI: 10.1109/CIEEC50170.2021.9510853

Tong Wang, Jian Li

引用次数: 0

Optimal Siting and Sizing of Distributed Generation Considering Voltage Stability Fluctuation 考虑电压稳定波动的分布式发电最优选址与规模

2021 IEEE 4th International Electrical and Energy Conference (CIEEC) Pub Date : 2021-05-28 DOI: 10.1109/CIEEC50170.2021.9510610

Yifan Xu, Shufeng Dong, Liheng Lin, Shupeng Zhang, Hangyin Mao

引用次数: 0

A Redundancy Design of Wireless Power Transfer System for Satellite Slip Ring with High Reliability 高可靠性卫星滑环无线电力传输系统的冗余设计

2021 IEEE 4th International Electrical and Energy Conference (CIEEC) Pub Date : 2021-05-28 DOI: 10.1109/CIEEC50170.2021.9511063

De'an Wang, S. Cui, Zhi Bie, Jiantao Zhang, Kai Song, Chunbo Zhu

引用次数: 0