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2023 IEEE 6th International Electrical and Energy Conference (CIEEC)最新文献

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Voltage Control Strategy of Distribution Networks with Distributed Photovoltaic Based on Multi-agent Deep Reinforcement Learning 基于多智能体深度强化学习的分布式光伏配电网电压控制策略
2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10167339
Hansheng Tang, Xiaoming Wang, Hao Zheng, Bin Xu, Wenguang Zhao, Hongbin Wu
{"title":"Voltage Control Strategy of Distribution Networks with Distributed Photovoltaic Based on Multi-agent Deep Reinforcement Learning","authors":"Hansheng Tang, Xiaoming Wang, Hao Zheng, Bin Xu, Wenguang Zhao, Hongbin Wu","doi":"10.1109/CIEEC58067.2023.10167339","DOIUrl":"https://doi.org/10.1109/CIEEC58067.2023.10167339","url":null,"abstract":"It is of great significance to control the voltage fluctuation and network loss increase caused by the random fluctuation of photovoltaic equipment output for the stable operation of distribution network. In order to solve the distribution network, voltage fluctuation problem. Firstly, a model-free multi-agent reinforcement learning framework based on depth deterministic strategy gradient algorithm is proposed. The method of centralized training and decentralized execution is adopted to solve the voltage fluctuation problem. Then, the reward function of the algorithm is adjusted to reduce reactive power loss under the premise of controlling voltage fluctuation. The adjustment can better meet the voltage control requirements of the distribution network. The deep reinforcement learning algorithm does not require accurate power flow modeling, nor does it depend on the prediction of the data before the day, so it is suitable for some observation distribution networks with weak communication capability. Finally, an example is given to verify that the algorithm has strong voltage control ability.","PeriodicalId":185921,"journal":{"name":"2023 IEEE 6th International Electrical and Energy Conference (CIEEC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114910363","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 armature current assisted suspension force control of EDS maglev 电枢电流辅助EDS磁悬浮悬浮力控制分析
2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166289
Yukang Gao, R. Wei, Zhigang Xue, Jin Wang, Qiongxuan Ge
{"title":"Analysis of armature current assisted suspension force control of EDS maglev","authors":"Yukang Gao, R. Wei, Zhigang Xue, Jin Wang, Qiongxuan Ge","doi":"10.1109/CIEEC58067.2023.10166289","DOIUrl":"https://doi.org/10.1109/CIEEC58067.2023.10166289","url":null,"abstract":"In superconducting electrical Suspension (EDS) maglev., lack of suspension force at low speed is an important problem remaining to be solved. This paper presents a method to increase the suspension force at low speed by armature current control of linear motor. Firstly., the mathematical model of Superconducting linear motor and suspension system of EDS maglev is established by space harmonic method. Based on the model., suspension force control system is built. By controlling the armature d-axis current., linear motor generates electromagnetic force in the suspension direction., which realizes the control of the suspension height. Besides., the control system can provide auxiliary suspension force at low speed., and produce damping force to suppress the suspension force fluctuations during operation. At last., the finite element model of EDS vehicle is established., and the simulation results verify the correctness of mathematical model.","PeriodicalId":185921,"journal":{"name":"2023 IEEE 6th International Electrical and Energy Conference (CIEEC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115089314","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
Dual Four-stage-vector Model Predictive Control for OW-PMSM Drives 低压永磁同步电机驱动器的双四级矢量模型预测控制
2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166925
Xiaoguang Zhang, Han Zhang
{"title":"Dual Four-stage-vector Model Predictive Control for OW-PMSM Drives","authors":"Xiaoguang Zhang, Han Zhang","doi":"10.1109/CIEEC58067.2023.10166925","DOIUrl":"https://doi.org/10.1109/CIEEC58067.2023.10166925","url":null,"abstract":"A novel dual four-stage-vector model predictive control (MPC) strategy for open-winding permanent magnet synchronous motor (OW-PMSM) drives is put forward in this article. In each control period, four vectors, including two non-zero vectors and two zero vectors, are applied to the dual-inverter. According to the principle of minimum number of switches, two non-zero vectors are applied in the middle of the control period, while the two zero vectors are distributed at the beginning and the ending of the control period, significantly reducing the control frequency. In addition, two zero vectors of inverter2 (INV2) are optimally distributed to inhibit the flow of zero-sequence current (ZSC). Therefore, the ZSC of the system is well-suppressed. Finally, compared to the conventional strategy, the control performance of the proposed strategy is proved by an experimental platform with a 1.25kW OW-PMSM.","PeriodicalId":185921,"journal":{"name":"2023 IEEE 6th International Electrical and Energy Conference (CIEEC)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116522769","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
Sensorless Control for Conveyor Collision Servo by PMSM 永磁同步电机输送机碰撞伺服无传感器控制
2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166928
Enci Wang, Longmiao Chen, Le Sun, Hui Gan
{"title":"Sensorless Control for Conveyor Collision Servo by PMSM","authors":"Enci Wang, Longmiao Chen, Le Sun, Hui Gan","doi":"10.1109/CIEEC58067.2023.10166928","DOIUrl":"https://doi.org/10.1109/CIEEC58067.2023.10166928","url":null,"abstract":"With the increasing application of permanent magnet synchronous machines (PMSM), the instability of the sensor becomes an important factor that threatens the reliability of the servo system based on it. The research of the sensorless control has reached such a pitch, and the sharp change of load is one of the difficulties. This paper proposes a scheme based on the conservation of momentum to solve the problem. The rotor position is estimated by a convex optimization method during the whole process. With the help of the mechanical equation model, supplemented by the extended Kalman filter (EKF) for data fusion, the speed estimate is obtained. And the momentum conservation theorem is introduced to correct the estimation when the load changes dramatically. Finally, the technology is simulated and verified by taking conveyor as an example.","PeriodicalId":185921,"journal":{"name":"2023 IEEE 6th International Electrical and Energy Conference (CIEEC)","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116549595","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
Numerical analysis of temperature characteristics and surrounding flow field of power cable along the bridge 电力电缆沿桥温度特性及周围流场数值分析
2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10167136
Yun Cong, Wei Kang, Han-Xiao Li, Zhenpeng Zhang
{"title":"Numerical analysis of temperature characteristics and surrounding flow field of power cable along the bridge","authors":"Yun Cong, Wei Kang, Han-Xiao Li, Zhenpeng Zhang","doi":"10.1109/CIEEC58067.2023.10167136","DOIUrl":"https://doi.org/10.1109/CIEEC58067.2023.10167136","url":null,"abstract":"Power cable simulation is of great significance to the construction of engineering projects. The specific simulation process generally needs to include the surrounding environment to realize the accurate simulation of the power cable itself. In this paper, Fluent is used to simulate the power cable, the surrounding flow field and part of the bridge. The results show that the increase of wind speed can enhance the heat dissipation process of power cables, but the relationship between the wind speed and the maximum load current is not linear. At the same time, the ambient temperature will also have an impact on the final temperature of the power cable. Usually, the rise in ambient temperature will directly affect the temperature of the conductor. Therefore, in order to ensure that the conductor temperature of the power cable is less than or equal to 363K during long-term operation, after considering the influence of environmental factors and load current fluctuations, the maximum load current should be properly adjusted to prolong the life of the power cable.","PeriodicalId":185921,"journal":{"name":"2023 IEEE 6th International Electrical and Energy Conference (CIEEC)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122650752","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
Electricity Theft Detection Based on SMOTE Oversampling and Logistic Regression Classifier 基于SMOTE过采样和逻辑回归分类器的窃电检测
2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10165777
Jin Wang, Xiaoyu Zhang
{"title":"Electricity Theft Detection Based on SMOTE Oversampling and Logistic Regression Classifier","authors":"Jin Wang, Xiaoyu Zhang","doi":"10.1109/CIEEC58067.2023.10165777","DOIUrl":"https://doi.org/10.1109/CIEEC58067.2023.10165777","url":null,"abstract":"Many countries are starting to construct the smart grid (SG) due to it creates a reliable, clean, and efficient power system compared to the traditional power grid. However, electricity theft can be harmful to grid operators, smart meter data from the Advanced Metering Infrastructure (AMI) can be tampered by thieves by using advanced digital instruments or cyber attacks to reduce electricity bills, which can have devastating financial consequences for utilities. The performance of the existing detection algorithm is influenced by the serious imbalance of data categories. In this paper, a Synthetic Minority Oversampling Technique (SMOTE) oversampling is employed to solve the imbalance problem, so the processed data and normal data can achieve a relative balance, and select logistic regression algorithm for power theft detection.","PeriodicalId":185921,"journal":{"name":"2023 IEEE 6th International Electrical and Energy Conference (CIEEC)","volume":"276 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114415012","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
Voltage-time Characteristics of the Different Nano-Oil under Lightning Impulse 雷电脉冲作用下不同纳米油的电压-时间特性
2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10165922
Qiulin Chen, Yayou Guan, Yan Luo, Neng Wang, R. Zhuo, Lin Ke, Zhiming Huang, Hongbin Zhou
{"title":"Voltage-time Characteristics of the Different Nano-Oil under Lightning Impulse","authors":"Qiulin Chen, Yayou Guan, Yan Luo, Neng Wang, R. Zhuo, Lin Ke, Zhiming Huang, Hongbin Zhou","doi":"10.1109/CIEEC58067.2023.10165922","DOIUrl":"https://doi.org/10.1109/CIEEC58067.2023.10165922","url":null,"abstract":"This paper presents experimental results of breakdown voltage-time characteristics of transformer oil and three kinds of nano-oil (Fe304, TiO2, Al2O3) under lightning impulse voltage. The test results show that three kinds of nanoparticles can improve the positive breakdown performance of the transformer oil, but has little effect on the negative breakdown performance. The reason for this phenomenon may be that the three kinds of nanoaprtcles can weaken of the electric field near the positive streamer head and enhance of the electric field of the negative streamer head, but the specific mechanism still needs to be explored. The results of the paper can provide a certain reference for insulation design by using nano-oil as insulation medium.","PeriodicalId":185921,"journal":{"name":"2023 IEEE 6th International Electrical and Energy Conference (CIEEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122069111","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
Multi-Objective Voltage and Reactive Power Coordinated Control Strategy for Distribution Networks Utilizing Gaining-Sharing Knowledge Based Algorithm 基于增益共享知识算法的配电网电压与无功多目标协调控制策略
2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166909
Jinjin Ding, Xunting Wang, Bin Xu, Mingxing Zhu, Wei Liu
{"title":"Multi-Objective Voltage and Reactive Power Coordinated Control Strategy for Distribution Networks Utilizing Gaining-Sharing Knowledge Based Algorithm","authors":"Jinjin Ding, Xunting Wang, Bin Xu, Mingxing Zhu, Wei Liu","doi":"10.1109/CIEEC58067.2023.10166909","DOIUrl":"https://doi.org/10.1109/CIEEC58067.2023.10166909","url":null,"abstract":"Existing heuristic optimization algorithms are prone to obtain a set of non-dominated solutions overconcentrated within an intermediate area in the objective space. It results in a poor diversity performance of the Pareto front when handling the problem on multi-objective voltage and reactive power coordinated control (MOVRPOC). For mitigating the aforementioned disadvantages, a newly developed heuristic algorithm, gaining-sharing knowledge based algorithm (GSK), is implemented to handle the problem of MOVRPOC. Then, the minimum system losses, the minimum average voltage deviation and the minimum curtailment rate are treated as optimization objectives, and then the revised IEEE 33-bus distribution system is utilized as the benchmark networks. Grey wolf optimization (GWO) and equilibrium optimizer (EO) are taken as a comparison to validate the improvement on diversity of GSK. The results reveal that GSK is capable to obtain more diverse non-dominated solutions to MOVRPOC for distributed networks, which can be better applied to the practical scenarios on MOVRPOC distribution networks.","PeriodicalId":185921,"journal":{"name":"2023 IEEE 6th International Electrical and Energy Conference (CIEEC)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122153313","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
Harmonic Modeling of Nonlinear Home Loads Based on Z-transform Parameter Estimation Method 基于z变换参数估计法的非线性家庭负荷谐波建模
2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166889
Jinghui Zhang, Xiangmin Xie, Yuhao Ding, Huazhong Sun
{"title":"Harmonic Modeling of Nonlinear Home Loads Based on Z-transform Parameter Estimation Method","authors":"Jinghui Zhang, Xiangmin Xie, Yuhao Ding, Huazhong Sun","doi":"10.1109/CIEEC58067.2023.10166889","DOIUrl":"https://doi.org/10.1109/CIEEC58067.2023.10166889","url":null,"abstract":"To accurately analyze the harmonic characteristics of nonlinear home loads with single-phase uncontrolled rectifier bridge circuit, a harmonic coupled model in the frequency domain is established based on the Z transform parameter estimation method. Firstly, the detailed frequency domain harmonic coupled model of a single-phase uncontrolled rectifier bridge with the resistance and inductance on AC side is derived and established, which can accurately reflect the coupling relationship between harmonic voltages and harmonic currents. Then a parameter estimation method based on the Z-transform method is proposed to estimate the circuit parameters of the nonlinear home load quickly and effectively, which provides accurate circuit parameters for the harmonic coupled model. Finally, under typical voltage conditions, the effectiveness and accuracy of the harmonic coupled model and parameter estimation method are verified by simulation and experiment.","PeriodicalId":185921,"journal":{"name":"2023 IEEE 6th International Electrical and Energy Conference (CIEEC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116875643","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
Design Optimization of High Frequency Transformer for Resonant DC/DC Converter 谐振式DC/DC变换器高频变压器的优化设计
2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI: 10.1109/CIEEC58067.2023.10166642
Xiangdong Yu, Zheng Zhang, Xiaozhou Wang, Jian-Bing Xu, Shuang Zhao, L. Ding, Min Shen, C. Yin
{"title":"Design Optimization of High Frequency Transformer for Resonant DC/DC Converter","authors":"Xiangdong Yu, Zheng Zhang, Xiaozhou Wang, Jian-Bing Xu, Shuang Zhao, L. Ding, Min Shen, C. Yin","doi":"10.1109/CIEEC58067.2023.10166642","DOIUrl":"https://doi.org/10.1109/CIEEC58067.2023.10166642","url":null,"abstract":"Resonant DC/DC converter is extensively applied in the industry due to their superiorities such as zero voltage switching which enables it to operate under higher frequency. As the core component of resonant DC/DC converter, the high-frequency transformer (HFT) is critical to the performance of the converter in regard of power density, efficiency, and reliability. However, as the frequency and power rating increase, the power loss on the wire and core increase as well. It is desired to propose the optimal design process for integrated HFT which considers the tradeoff between volume and power. This paper comprehensively investigates the impact of air gap length, location and winding structure on the transformer. Based on the analytical model, the design flow of a magnetics integrated transformer which incorporates intrinsic magnetizing inductance and leakage inductance for the resonant tank is presented. Finally, the analytical model and the optimization design of HFT are validated with experimental results.","PeriodicalId":185921,"journal":{"name":"2023 IEEE 6th International Electrical and Energy Conference (CIEEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129619594","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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