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2022 IEEE 5th International Electrical and Energy Conference (CIEEC)最新文献

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Impact of Fault Ride-through Characteristics of Large-scale Distributed Photovoltaic Integration on Voltage in Receiving-end Grid 大规模分布式光伏系统故障穿越特性对接收端电网电压的影响
2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9846716
Hong Dai, C. Ruan, C. Yan, Wenting Huang, Yi Chao Wu, Li Xia Sun
{"title":"Impact of Fault Ride-through Characteristics of Large-scale Distributed Photovoltaic Integration on Voltage in Receiving-end Grid","authors":"Hong Dai, C. Ruan, C. Yan, Wenting Huang, Yi Chao Wu, Li Xia Sun","doi":"10.1109/CIEEC54735.2022.9846716","DOIUrl":"https://doi.org/10.1109/CIEEC54735.2022.9846716","url":null,"abstract":"With the rapid development photovoltaic industry in China, the installed capacity of distributed photovoltaics has been expanding. When the distributed network fails, due to the different fault ride-through strategies and parameters adopted by different companies and series of inverters, the photovoltaic power supplies show different output characteristics during the fault. This paper establishes a fault ride-through mathematical model of photovoltaic (PV) power generation system. Based on the model, the output adaptability of the PV generation is analyzed under different voltage operation conditions. Furthermore, the influence of the voltage of the photovoltaic access point is studied when the fault occurs in the distributed network. The simulation is carried on the IEEE 39-bus system. The results show that the fault ride-through model of PV can achieve secure ride through when the distributed network fails, the effectiveness of the model is verified by simulation. In addition, the voltage variation of the receiving network is within the allowable range during the fault.","PeriodicalId":416229,"journal":{"name":"2022 IEEE 5th International Electrical and Energy Conference (CIEEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127472675","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 Identification Method for Dominant Mode of Low Frequency Oscillation in Power System 电力系统低频振荡主导模态的识别方法
2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9846183
Xiangming Dong, Feng Luo, C. Wu, Song-hua He
{"title":"An Identification Method for Dominant Mode of Low Frequency Oscillation in Power System","authors":"Xiangming Dong, Feng Luo, C. Wu, Song-hua He","doi":"10.1109/CIEEC54735.2022.9846183","DOIUrl":"https://doi.org/10.1109/CIEEC54735.2022.9846183","url":null,"abstract":"It is helpful for dispatchers to master the dynamic security and stability characteristics of the system after fault according to the analysis results of low frequency oscillation. Firstly, the principle of low frequency oscillation mode identification using Prony algorithm is introduced in the paper. Then the reasons for a big difference in the identification results of dominant mode after small fluctuation of curve are analyzed. According to analysis results, a dominant mode identification method of low frequency oscillation in power system based on Prony algorithm and correlation analysis is proposed. Finally, the effectiveness of the proposed method is verified by the example of ideal signal and actual system simulation curve.","PeriodicalId":416229,"journal":{"name":"2022 IEEE 5th International Electrical and Energy Conference (CIEEC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124881803","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 Pre-Synchronization Strategy for Grid-Forming Loop-Closing Device in Distribution Network 配电网成网闭环装置的预同步策略
2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9846021
Wenjie Gao, F. Ding, Mingming Shi, X. Ge, Jiaxing Lei, Renzhi Huang
{"title":"A Pre-Synchronization Strategy for Grid-Forming Loop-Closing Device in Distribution Network","authors":"Wenjie Gao, F. Ding, Mingming Shi, X. Ge, Jiaxing Lei, Renzhi Huang","doi":"10.1109/CIEEC54735.2022.9846021","DOIUrl":"https://doi.org/10.1109/CIEEC54735.2022.9846021","url":null,"abstract":"With the development of economy and society and the advancement of smart grid construction, loop-closing operation can improve power supply reliability, ensure power supply continuity, reduce power supply losses, and improve user satisfaction, laying the foundation for the intelligent development of distribution networks. This paper proposes an pre-synchronization strategy for grid-forming loop-closing device in distribution network. The loop closing strategy proposed in this paper includes three parts. The first part controls the DC bus voltage through VSCI, the second part controls the capacitor voltage through VSC2, and the third part realizes the loop closing operation through pre-synchronization control. Finally, the simulation analysis of distribution network system in MATLAB/Simulink environment verifies the effectiveness of the proposed pre-synchronization strategy for grid-forming loop-closing device.","PeriodicalId":416229,"journal":{"name":"2022 IEEE 5th International Electrical and Energy Conference (CIEEC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125188229","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 Parameter Identification Method of Asynchronous Motor Considering Load Characteristics 考虑负载特性的异步电动机参数辨识方法研究
2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9846473
Yisen Sun, Zhongjian Kang, Jiaxuan Liu
{"title":"Research on Parameter Identification Method of Asynchronous Motor Considering Load Characteristics","authors":"Yisen Sun, Zhongjian Kang, Jiaxuan Liu","doi":"10.1109/CIEEC54735.2022.9846473","DOIUrl":"https://doi.org/10.1109/CIEEC54735.2022.9846473","url":null,"abstract":"Aiming at the problem that the existing asynchronous motor parameter identification method only identifies the parameters of the motor itself, ignoring the parameters of the asynchronous motor load, this paper proposes a particle swarm optimization algorithm combined with spatial disturbance to realize the integrated parameter identification of the asynchronous motor, machine and pump. On the premise of identifying the parameters of the asynchronous motor itself, the load parameters of the pump are identified, and the improved particle swarm optimization algorithm is used to realize the integrated identification of the asynchronous motor and the load. By combining the particle swarm optimization algorithm (PSO) and the spatial disturbance (SD), the six equivalent parameters of the asynchronous motor and the pump load factor can be accurately and effectively identified. Compared with the traditional PSO algorithm, the global search method is increased. Excellent ability. An example proves the effectiveness of the algorithm.","PeriodicalId":416229,"journal":{"name":"2022 IEEE 5th International Electrical and Energy Conference (CIEEC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126120411","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
Cloud and Electricity Portfolio Optimization for Internet Data Centers under Uncertainties 不确定条件下互联网数据中心的云和电力组合优化
2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9846747
Yanxu Zhang, Caishan Guo, Chunchao Hu, Yu Cai
{"title":"Cloud and Electricity Portfolio Optimization for Internet Data Centers under Uncertainties","authors":"Yanxu Zhang, Caishan Guo, Chunchao Hu, Yu Cai","doi":"10.1109/CIEEC54735.2022.9846747","DOIUrl":"https://doi.org/10.1109/CIEEC54735.2022.9846747","url":null,"abstract":"The introduction of cloud and electricity markets brings in promising economic potentials for cloud service providers (CSP) to increase profits. However, it is a challenging task to optimize the CSP’s portfolio decisions in both markets in the face of market dynamics and uncertainties. The goal of this paper is to investigate the strategic behaviors of a CSP in the context of cloud and electricity markets under uncertainties. A two-stage portfolio optimization framework is proposed. The first stage optimizes the CSP’s dynamic cloud pricing scheme, biddings in day-ahead wholesale electricity markets, and resource management. While the second stage considers the CSP’s real-time resource management and trading decisions in a cloud spot market and real-time wholesale electricity markets after capturing the actual values of cloud demands, market prices and renewable output fluctuations. An opportunity profit due to server redundant provisioning in the first stage is proposed, which can reflect the potential economic benefits in the second stage. Numerical studies are conducted to show the effectiveness of the proposed model.","PeriodicalId":416229,"journal":{"name":"2022 IEEE 5th International Electrical and Energy Conference (CIEEC)","volume":"513 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123566571","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
Effect of Silicone Grease Coating on Space Charge Characteristics of XLPE / SIR Interface 硅脂涂层对XLPE / SIR界面空间电荷特性的影响
2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9846830
Quanxu Jiang, Bonan Cui, Xia Wang, Kai Wu
{"title":"Effect of Silicone Grease Coating on Space Charge Characteristics of XLPE / SIR Interface","authors":"Quanxu Jiang, Bonan Cui, Xia Wang, Kai Wu","doi":"10.1109/CIEEC54735.2022.9846830","DOIUrl":"https://doi.org/10.1109/CIEEC54735.2022.9846830","url":null,"abstract":"Silicone rubber (SIR) for cable accessories insulation is easy to absorb the silicone grease coated on the interface between accessories and cable insulation to swell, thus affecting the interface charge characteristics. In order to study the effect of silicone grease coating on the spatial charge distribution of the cross-linked polyethylene (XLPE) / SIR interface under different aging methods, two silicone greases with large polarity difference were selected, one was ordinary silicone grease, and the other was silicon fluoride grease with large polarity. The silicone rubber coated with silicone grease was subjected to normal temperature aging, corona aging and wet aging, respectively. The spatial charge distribution of the XLPE / SIR sample coated with silicone grease was measured by electroacoustic pulse method (PEA). The results show that under different aging conditions, the charge polarity accumulated at the interface of the samples coated with two kinds of silicone greases is mainly positive polarity, that is, the polarity is the same as the polarity of the electrode on the side of the silicone rubber, and the silicone grease with larger polarity makes the interface of the samples easier to accumulate charge. Under different aging modes, both silicone resins have swelling effects on silicone rubber, resulting in the migration of positive charges at the XLPE / SIR interlayer interface to silicone rubber. The interface charge accumulation caused by wet aging is the largest, followed by room temperature aging, and finally corona aging.","PeriodicalId":416229,"journal":{"name":"2022 IEEE 5th International Electrical and Energy Conference (CIEEC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125522752","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 Voltage Level Shifter with Fast Level Translation Speed 具有快速电平转换速度的电压电平移位器
2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9846289
Dongyan Zhao, Yubo Wang, Yanning Chen, Z. Fu, Luo Wang, Yali Shao, Kelu Hua, Hanling Li, Jing Zhou, Yifeng Peng
{"title":"A Voltage Level Shifter with Fast Level Translation Speed","authors":"Dongyan Zhao, Yubo Wang, Yanning Chen, Z. Fu, Luo Wang, Yali Shao, Kelu Hua, Hanling Li, Jing Zhou, Yifeng Peng","doi":"10.1109/CIEEC54735.2022.9846289","DOIUrl":"https://doi.org/10.1109/CIEEC54735.2022.9846289","url":null,"abstract":"In modern integrated circuit design, in order to pursue low power consumption, different circuits could be set to work in different operating voltages. In order to achieve correct signal transmission between different operating voltages, voltage level shifter circuit is needed. This paper proposes a new structure of voltage level shifter, by using edge fast response and current transient enhancement mechanism, which can achieve stable voltage conversion with fast conversion speed. The circuit is designed based on the SMIC 180 nm standard CMOS process. Based on simulation results, the voltage conversion from 1.8 V to 5 V with delay time of 1.51 ns can be achieved.","PeriodicalId":416229,"journal":{"name":"2022 IEEE 5th International Electrical and Energy Conference (CIEEC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126821442","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
Influence of Phase Angle for Low-order Harmonics on Vibration of an Induction Traction Motor 低次谐波相位角对感应牵引电动机振动的影响
2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9846544
Yangbo Kou, Fei Xiong
{"title":"Influence of Phase Angle for Low-order Harmonics on Vibration of an Induction Traction Motor","authors":"Yangbo Kou, Fei Xiong","doi":"10.1109/CIEEC54735.2022.9846544","DOIUrl":"https://doi.org/10.1109/CIEEC54735.2022.9846544","url":null,"abstract":"The vibration and noise problem of induction traction motor has been widely concerned and studied in recent years. This paper focuses on the influence of low-order harmonics phase on electromagnetic force of induction motor. Firstly, the relationship between stator and rotor current phase with harmonics is analyzed qualitatively by equivalent circuit. Then, the electromagnetic force of an induction traction motor is studied. Using two-dimensional Fourier analysis, the main spatial order and frequency of electromagnetic force wave can be calculated. The variation of three main electromagnetic force waves with harmonic phases are analyzed. Finally, the vibration under different harmonic phases is obtained by finite element simulation. The results show that the relationship between electromagnetic force and motor vibration with harmonic phase is basically consistent under low spatial order.","PeriodicalId":416229,"journal":{"name":"2022 IEEE 5th International Electrical and Energy Conference (CIEEC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116210429","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
Comparison of EMF Exposure Limits and Assessment for Electric Vehicle Wireless Power Transfer* 电动汽车无线电力传输的电磁场暴露限值比较及评估*
2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/cieec54735.2022.9846400
Ni Li, Yanzhao Wang, Jiangong Zhang, Zheyuan Gan
{"title":"Comparison of EMF Exposure Limits and Assessment for Electric Vehicle Wireless Power Transfer*","authors":"Ni Li, Yanzhao Wang, Jiangong Zhang, Zheyuan Gan","doi":"10.1109/cieec54735.2022.9846400","DOIUrl":"https://doi.org/10.1109/cieec54735.2022.9846400","url":null,"abstract":"The electric and magnetic fields (EMF) generated by electric vehicle wireless power transfer might have health effects on the human inside and around the electric vehicle, including persons with active implantable medical devices. The comparative analysis on the EMF limits, measurement methods and assessment methods in the relevant EMF exposure standards were conducted, and the similarities and differences between domestic and foreign EMF standards and the international mainstream view were obtained. These provide the reference for the measurement and environmental impact assessment of electric vehicle wireless power transfer, as well as for revising Chinese national standard. The simulation and test research will be required with respect to the issues in the future, including assessment method of basic restrictions.","PeriodicalId":416229,"journal":{"name":"2022 IEEE 5th International Electrical and Energy Conference (CIEEC)","volume":"191 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116390543","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
Asymmetric Feedforward Compensation For 3-Phase Coupled Buck-Boost Converter 三相耦合Buck-Boost变换器的非对称前馈补偿
2022 IEEE 5th International Electrical and Energy Conference (CIEEC) Pub Date : 2022-05-27 DOI: 10.1109/CIEEC54735.2022.9846761
Fu Han, Duan Shanxu, Cai Tao, Bao Junyang
{"title":"Asymmetric Feedforward Compensation For 3-Phase Coupled Buck-Boost Converter","authors":"Fu Han, Duan Shanxu, Cai Tao, Bao Junyang","doi":"10.1109/CIEEC54735.2022.9846761","DOIUrl":"https://doi.org/10.1109/CIEEC54735.2022.9846761","url":null,"abstract":"In this paper, asymmetric operation of the 3-phase coupled buck-boost converter is analyzed. The form and solution process of the asymmetric operation are complicate, but the solution can be expressed and calculated in a simple form. By using parallel feedforward control, the dynamic performance of 3-phase coupled buck-boost converter can be improved obviously. Accuracy and effectiveness of the analysis and calculation are verified with the results of simulation and experiments.","PeriodicalId":416229,"journal":{"name":"2022 IEEE 5th International Electrical and Energy Conference (CIEEC)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116546294","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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