Pengfei Bian, Yuanxin Liu, Wen Wang, Ye Yang, Shu Su, Shanshan Shang, Mingguang Liu
{"title":"Optimal Regulation Strategy for Electric Vehicle Load Clusters based on Demand Response","authors":"Pengfei Bian, Yuanxin Liu, Wen Wang, Ye Yang, Shu Su, Shanshan Shang, Mingguang Liu","doi":"10.1109/ICPST56889.2023.10165166","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165166","url":null,"abstract":"With the rapid increase of electric vehicle ownership, the disorderly grid-connected charging of electric vehicles will bring great uncertainty to the smooth load of the distribution network, so it is important to optimize the regulation of electric vehicle clusters. To this end, an optimal regulation strategy for electric vehicle load clusters based on Demand Response is proposed. Through the analysis of the source load characteristics of electric vehicles, the elastic service rate and electricity incentive are innovatively proposed. Finally, the data of electric vehicles in the northern Hebei region is used for example simulation. The results show that the demand response-based EV cluster optimization and regulation strategy can reduce the charging cost of users and get a better dispatching effect while reducing the system load fluctuation.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116481683","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}
{"title":"Complex Network Based Virtual Power Plant CPS Reliability Analysis","authors":"Zhenglong Leng, Zhaozheng Zhou, Yuanchun Tang, Cui Li, Zhanghuang Zhang, Yincheng Qi","doi":"10.1109/ICPST56889.2023.10165055","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165055","url":null,"abstract":"In view of the problem that the scale of cascading failures may expand due to the failure of key nodes in cyber network of virtual power plant (VPP) cyber-physical system (CPS), this paper establishes a VPP CPS architecture network model. Small world network and scale-free network are used to simulate the cyber network as well as power network in CPS respectively. In view of the fact that VPP CPS can't resist deliberate attacks well, a protection strategy for key nodes of VPP cyber network is proposed to enhance the protection of key nodes and reduce the impact of cascading failures. The number of surviving nodes and clusters are adopted as indicators to evaluate the reliability of VPP-CPS network. Through the analysis of the complex network characteristic parameters and cascading failure process in VPP CPS network, protecting key nodes can improve the reliability of VPP network effectively.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134011291","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}
{"title":"Missing Completion Method for Load Data Based on Generative Adversarial Imputation Net","authors":"Zhijian Liu, Yunxu Tao, Han Liu, Linglin Luo, Dechun Zhang, Xinyu Meng","doi":"10.1109/ICPST56889.2023.10165229","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165229","url":null,"abstract":"Missing load data is a common phenomenon, which prevents these measurements from being used properly in subsequent data analysis. In order to solve the problem of missing data, this paper proposes a load data missing completion method based on the generative adversarial imputation net. Firstly, according to the characteristics of load data and the spatio-temporal relationship, a data matrix was constructed considering the influence of meteorological factors on the variation of load data. Secondly, the mask matrix is used to represent the missing data, the missing data value under the mask matrix is predicted by the generator, and the performance of the generator is evaluated by the discriminator. Finally, in order to verify the effectiveness of the proposed method, load data are used to carry out experiments. Through a series of experiments, it is verified that the completion effect of this paper has obtained good indicators on both RMSE and MAE, and can effectively complete load data with missing rate less than 50%","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133954942","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}
Zehao He, P. Zhou, Zenan Xu, Lingyang Sun, Zhuolin Ye
{"title":"Research on the Stability of Biaxial Excitation of Synchronous Generators","authors":"Zehao He, P. Zhou, Zenan Xu, Lingyang Sun, Zhuolin Ye","doi":"10.1109/ICPST56889.2023.10165080","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165080","url":null,"abstract":"The biaxially excited synchronous generator overcomes the shortcomings of conventional synchronous generators in fault regulation and is able to regulate the output power of reactive power while transmitting active power, with deep phase in, significantly improving power system stability. In this paper, a vector model of the biaxially excited synchronous generator on the dq0 coordinate system is constructed, the power angle characteristics and basic equations are derived, and the dual-channel excitation method and the active and reactive power regulation process of the biaxially excited synchronous generator are further elaborated. By building a simulation model in Flux simulation software, the effects of the magnitude, action time and input moment of the generator's q-axis excitation current on the power angle and motor stability when a short-circuit fault occurs in the line are investigated in depth. The results indicate the conclusion that the motor with the q-axis excitation current incorporated is more helpful for power system stability than the conventional single-axis motor.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125855997","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}
Wanqing Chen, Jinyu Chen, Qiyuan Cai, Zimeng Li, Pengfei Hu
{"title":"Optimized Scheduling of Biogas-photovoltaic-wind Rural Integrated Energy System Based on Energy Hub","authors":"Wanqing Chen, Jinyu Chen, Qiyuan Cai, Zimeng Li, Pengfei Hu","doi":"10.1109/ICPST56889.2023.10165410","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165410","url":null,"abstract":"The complex coupling between biogas and other renewable energy sources in the conversion and storage of multiple energy sources poses certain challenges to the development of rural integrated energy systems(RIES). Considering the uncertainty of load and renewable energy, as well as the grid structure of the power system, an optimal scheduling model for the biogas-photovoltaic-wind RIES base on the energy hub was established in this paper that considers both economy and environmental protection. The effectiveness and feasibility of the proposed optimal scheduling model can be verified through simulation analysis of a proposed RIES of Fujian Province. The simulation results show that increasing the feedback mechanism of energy hubs can promote multi-energy complementation, further promote the generation and consumption of renewable energy, and reduce the investment and operation costs of the biogas-photovoltaic-wind RIES; The optimized operation scheme obtained by considering multiple objectives of the economy and environmental protection can ensure low carbon emissions while reducing operation costs, providing a reference for the construction of RIES.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125992552","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}
{"title":"Analysis of Primary Frequency Response Based on Overspeed and Pitch Control Reserve and Coordinated Control Strategy","authors":"Wenhao Lou, Zhaoyang Jin, Chenhui Zhang, Anxiang Hou, Wen Wang, L. Ding","doi":"10.1109/ICPST56889.2023.10164944","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10164944","url":null,"abstract":"The large-scale integration of wind turbines into the power system will result in insufficient primary frequency response capability. Deloading control including overspeed and pitch control reserve is proposed for wind turbines to enhance the primary frequency response capability of the system. However, there is a lack of a quantitative characteristic of these deloading, which hinders the establishment of a correspondence between wind power reserve and its ability to provide primary frequency response. To tackle this problem, this paper analyzes the characteristic of overspeed and pitch angle reserves, calculates the reserve power and rotor kinetic energy (KE) and analyzes the primary frequency response capability boundary. Based on the boundary, a wind turbine primary frequency response strategy based on fast frequency response (FFR) is proposed. Simulation demonstrates that the coordination of overspeed and pitch angle reserves can stabilize wind turbines and continuously release power to reduce the steady-state frequency deviation of the system, thereby effectively supporting the system frequency.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123877373","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}
{"title":"Research on Transmission Characteristics of MCR-WPT Systems Based on Chaotic Sparrow Search Algorithm","authors":"Haoze Zhuo, Jing Xiao, Wenlan Gong, Xiaoke Zhang, Yufang Chang","doi":"10.1109/ICPST56889.2023.10165116","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165116","url":null,"abstract":"To solve the problem of low transmission efficiency in the magnetic coupled resonant wireless power transfer (MCR-WPT) system, a parameter design method based on chaotic sparrow search algorithm is proposed to optimize the transmission efficiency of the system. The circuit model of the two-coil MCR-WPT system is established, and the relationships among output power, transmission efficiency, frequency, coupling coefficient and load resistance are derived. The influence of frequency, coupling coefficient and load resistance on the output power and transmission efficiency of the system is studied and analyzed by the control variable method. The sparrow search algorithm is improved by using chaotic reverse learning strategy, and the three parameters were optimized by the improved algorithm, and the system parameter values corresponding to the optimal solution are obtained. Simulation results show that the transmission efficiency of the optimized MCR-WPT system can reach up to 91%.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125215787","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}
{"title":"Research on the Effectiveness of Power Technologies for Achieving Carbon Neutrality in China","authors":"Yuanji Cai, Xiaoyan Qiu, Hanxing Zhang","doi":"10.1109/ICPST56889.2023.10165123","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165123","url":null,"abstract":"China has announced its target to achieve carbon neutrality by 2060, and this achievement ought to start with transforming the current power system to a new low-carbon system dominated by renewable energy. To facilitate the transformation, low-carbon power technologies play an important role. To explore the emission reduction effect of low-carbon power technologies, this paper first proposes an analysis model that examines the emission reduction effect of different low-carbon technologies in numeric terms. Based on the proposed calculation method and relevant predicted values, the reduction effects of five low-carbon technologies, including solar-thermal power generation, virtual synchronous, grid-side energy storage, demand response, and carbon capture and storage, are discussed. The results show that these technologies can effectively promote decarbonization in the power sector. This study is helpful for the power industry to choose suitable technology development paths and assist in the decomposition and optimization of emission tasks.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125240786","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}
Chun Li, Haifeng Shi, Keding Wang, Jun Shen, Di Zheng
{"title":"Parameter Identification Algorithm for Grid-Connected Photovoltaic Power Generation System Based on Extended Kalman Filter","authors":"Chun Li, Haifeng Shi, Keding Wang, Jun Shen, Di Zheng","doi":"10.1109/ICPST56889.2023.10165311","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165311","url":null,"abstract":"Due to the rapid advancement of renewable energy sources, photovoltaic power generation systems (PVPGSs) have become increasingly prevalent in modern power systems. To mitigate potential degradation of system characteristics resulting from the proliferation of PVPGSs, power systems are imposing stricter regulation requirements on PVPGSs. However, the existing control methods for PVPGSs typically rely on prior knowledge of inverter control parameters, which are often not readily available or accessible. Inaccurate control parameters may constrain the efficacy of these control methods. Therefore, this paper presents an extended Kalman filter (EKF) based parameter identification algorithm for grid-connected PVPGSs to efficiently and accurately identify system parameters under disturbances. The mathematical model of the PVPGS is initially analyzed, followed by an analysis of the EKF algorithm and the proposal of an EKF-based PVPGS parameter identification method. Case studies indicate that the maximum errors of parameter identification results such as DC-side capacitance, proportion coefficient, and integration coefficient of PI regulator are less than 1.16% in different scenarios.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129595690","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}
{"title":"Research on Sensorless Control Technology of Brushless DC Motor with Delta Winding for Cooling Fan in Electric Reactor","authors":"Jiabao Dong, Z. Hao, W. Hu","doi":"10.1109/ICPST56889.2023.10165413","DOIUrl":"https://doi.org/10.1109/ICPST56889.2023.10165413","url":null,"abstract":"The cooling fan of the electric reactor is based on the brushless DC motor with delta winding and the commutation point of sensorless drive is 60° after the back electromotive force (EMF) passes through zero point. In this paper, the mechanism of back EMF zero-crossing detection method for delta winding is deduced and the starting problem at low speed and the commutation error caused by diode freewheeling at high speed and large current are analyzed. On this basis, combining I/f constant current up-frequency starting and the back EMF zero-crossing detection method and performing the commutation angle compensation, a full-speed range sensorless control strategy is proposed. Based on this strategy, an electric reactor cooling fan with rated speed of 4750(r/min) and rated power of 800W under low voltage and large current conditions is verified by simulations and experiments. The results show that the sensorless control strategy proposed can ensure the stable operation of the cooling fan of the electric reactor in the full-speed range, which has good feasibility and robustness.","PeriodicalId":231392,"journal":{"name":"2023 IEEE International Conference on Power Science and Technology (ICPST)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121458203","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}