{"title":"Research on Power Factor Correcting Algorithm Based on Average Detection","authors":"Ming Yan, Q. Song, Lukai Zhao","doi":"10.1109/SPIES52282.2021.9633916","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633916","url":null,"abstract":"a new power factor correction(PFC) algorithm is put forward based on average detection, which suppress the influence to the PFC caused by the twice power frequency ripple in the outputside. And for the proposed algorithm in this article, simulation analysis is done in Matlab/Simulink. Then the algorithm proposed is verfied through experiment in the low voltage. The results show the algorithm proposed have superiority to others algorithms in APFC control.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129406306","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}
L. Chen, Li Peizhe, Xiao Zhenfeng, Wu Yefan, Liu Haotian, Di Xin, Zheng Jiayun
{"title":"Research on Power Allocation Algorithm for Maximizing Energy Efficiency in Uplink NOMA System of 5G Smart Grid","authors":"L. Chen, Li Peizhe, Xiao Zhenfeng, Wu Yefan, Liu Haotian, Di Xin, Zheng Jiayun","doi":"10.1109/SPIES52282.2021.9633963","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633963","url":null,"abstract":"The maximum energy efficiency of 5G uplink non-orthogonal multiple access (NOMA) systems is crucial to the development of smart grids. Under the conditions of the system’s minimum signal to interference and noise ratio (SINR), maximum frequency band utilization, minimum rate requirement of users and maximum transmission power of a single user, Based on two user groups, the power allocation optimization problem for maximizing energy efficiency in NOMA system is proposed. The minimum power required by the user is calculated under the requirement of satisfying the minimum rate of the user, and then the power allocation target is obtained under the constraint condition, and then the maximum energy efficiency and power allocation of the system are solved based on the algorithm.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127336759","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}
Li Peizhe, Xiao Zhenfeng, Wu Yefan, Liu Haotian, Zheng Jiayun, Di Xin
{"title":"Research of Power Allocation Algorithm in the Distribution Side of Smart Grid Based on 5G Non Othogonal Multiple Access System","authors":"Li Peizhe, Xiao Zhenfeng, Wu Yefan, Liu Haotian, Zheng Jiayun, Di Xin","doi":"10.1109/SPIES52282.2021.9633910","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633910","url":null,"abstract":"5G communication technology has the advantages of large bandwidth, low delay, high reliability and service-oriented network architecture, which is a new wireless technology to solve the communication needs of smart grid. In order to solve the power allocation problem among smart grid services, this paper proposes a user grouping and power allocation algorithm based on non-orthogonal multiple access (NOMA) system. Firstly, the users of the base station are grouped, and we think of several users as a cluster, the channel gain between the base station and the users is input, and several users corresponding to the maximum channel gain are divided into a cluster. Then allocates the power of the users in the cluster, and power distribution is carried out among the clusters. The power distribution within the cluster follows the criterion of maximum fairness, and the power distribution between the clusters adopts the idea of iteration. By constantly adjusting the maximum power value of the cluster and the minimum power value of the cluster, the optimal power distribution of the smart grid system can be obtained. MATLAB simulation results show that: under different conditions, the algorithm proposed in this paper makes the distribution result fairer, the user’s minimum rate is also improved compared with the algorithm proposed in other literatures.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115166583","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 Electromagnetic Characteristics of Oil - based Fe₃O₄ Nanometer Two - phase Magnetic Fluid Transformer","authors":"Yongteng Jing, R. Sun, Yan Li","doi":"10.1109/SPIES52282.2021.9633929","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633929","url":null,"abstract":"Because of the high thermal conductivity of the nanometer two-phase magnetic fluid, it will be used as a new cooling medium for transformers to solve the problem of limited capacity of the transformer due to the temperature limit. However, the electromagnetic characteristics of the nanometer two-phase magnetic fluid transformer are rarely studied. Therefore, based on the electromagnetic field theory and the magnetic fluid characteristics (oil-based Fe3O4 nanometer two-phase magnetic fluid), the electromagnetic characteristics of the new transformer are analyzed and studied. Taking a 50MVA and 110kV transformer product as an example, calculated and analyzed the changes of internal magnetic field before and after using the nanometer two-phase magnetic fluid cooling material in this paper. By compared and analyzed the metal structures such as iron core, clip and tank and the magnetic field and eddy current field of magnetic fluid, the influence of magnetic fluid on electromagnetic characteristics of transformer is further demonstrated. The calculation and analysis show that the electromagnetic properties of the transformer are obviously changed by using the nanometer two-phase magnetic fluid as the cooling medium. The research can be applied to design of this kind of transformer.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126825405","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}
Lahiru Aththanayake, Apel Mahmud, N. Hosseinzadeh, A. Gargoom
{"title":"Performance Analysis of Regression and Artificial Neural Network Schemes for Dynamic Model Reduction of Power Systems","authors":"Lahiru Aththanayake, Apel Mahmud, N. Hosseinzadeh, A. Gargoom","doi":"10.1109/SPIES52282.2021.9633912","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633912","url":null,"abstract":"The performance of regression and artificial neural network schemes is evaluated for dynamic model reduction of power systems. The evaluation criterion is based on the goodness of fit in each reduced model with respect to the original model. Multiple linear regression, polynomial regression, and support vector are used as regression models while a Feedforward Artificial Neural Network with different activation functions is used for comparison with regression models. All simulations are based on a simplified Australian 14 Generator model. Datasets for training and test sets are obtained by measuring boundary bus properties and power flowing through tie lines. The simulation results show that the artificial neural network outperforms the regression models in making a reduced model of the power system, but only related to the system responses corresponding to the contingencies that were used for training. However, they perform poorly for unknown contingencies. Research work is being continued by the authors to create better models by combining classical models with machine learning techniques.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":" 46","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113952197","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}
Shu Liu, Xutong Hou, Chenxu Zhao, Liang Ji, Shuxin Tian, Xiangjing Su
{"title":"A Novel Fault Recovery Strategy for Future Distribution Network based on Multi-objective Particle Swarm Optimization Algorithm","authors":"Shu Liu, Xutong Hou, Chenxu Zhao, Liang Ji, Shuxin Tian, Xiangjing Su","doi":"10.1109/SPIES52282.2021.9633812","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633812","url":null,"abstract":"Fault recovery strategy plays a vital role in increasing the power system reliability and stability. The classic multi-objective evolutionary algorithm based on Pareto dominance criteria and crowding distance sorting method does not consider the preference of decision maker in the iterative process, which leads to the decline of convergence performance. For the problem, this paper proposes a novel fault recovery strategy based on the preference multi-objective particle swarm algorithm considering the reference vector. This method uses the reference vector to determine the preference area so as to effectively integrate the decision maker’s preference knowledge into the fault recovery plan design. As the multi-objective intelligence algorithm based on Pareto dominance does not consider the problem of decision-makers’ preference knowledge, the multi-objective discrete binary particle swarm algorithm is then introduced. Secondly, the individual solutions are selected through the v-dominance relationship according to the preferences of decision makers, and external files are maintained. Finally, the feasibility of the proposed method is verified through the 69-node distribution network.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130844504","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":"Strategy of Power Retailer Considering the Deviation Penalty","authors":"T. Hang, B. Zou","doi":"10.1109/SPIES52282.2021.9633956","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633956","url":null,"abstract":"At present, almost all papers assumes that the market includes medium and long-term power contract transactions and spot markets (including day-ahead and real-time markets), and then discusses various possible strategies of retail companies on this basis. However, the actual situation in China only includes the medium and long-term electricity market, and the electricity sales company’s electricity deviation assessment has also been carried out. Facing the actual market conditions in China, how to conduct effective management is a problem that must be taken seriously. Based on the actual situation in China, this paper constructs a decision-making model, and conducts an in-depth study on the risk decision making of retail electricity companies through the calculation results of the model.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"248 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133932511","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":"SPIES 2021 TOC","authors":"","doi":"10.1109/spies52282.2021.9633809","DOIUrl":"https://doi.org/10.1109/spies52282.2021.9633809","url":null,"abstract":"","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114696273","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}
Yang Yu, Guanqun Dong, K. Huang, Yan-long Zhao, Zhaoxuan Wang, Kai Wang
{"title":"Diagnostic Analysis and Disintegrate Verified on the Defect of 220kV Transformer Winding Deformation","authors":"Yang Yu, Guanqun Dong, K. Huang, Yan-long Zhao, Zhaoxuan Wang, Kai Wang","doi":"10.1109/SPIES52282.2021.9633802","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633802","url":null,"abstract":"This article describes the deformation defect on the low voltage winding of 220kV transformer found by diagnostic routine tests, which provide the field data for the study of transformer cumulative effects and faulty detection. Combination of the test results of the oil Chromatography after impact by short circuits over the years, analyzed deformation reasons, that mainly due to the low pressure side of the short-circuit current impact and cumulative effect of winding deformation. Though the disintegration by depot, the low-voltage winding exists different degrees of deformation and overheating. This article describes the diagnostic through the transformer winding deformation; effectively prevents latent failures of devices happening, and given the recommendations of routine maintenance and overhaul on transformer.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116204570","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}
Lingling Ju, Guangchao Geng, Q. Jiang, Yuzhong Gong, C. Qin
{"title":"An Adaptive OCV-SOC Curve Selection Classifier for Battery State-of-Charge Estimation","authors":"Lingling Ju, Guangchao Geng, Q. Jiang, Yuzhong Gong, C. Qin","doi":"10.1109/SPIES52282.2021.9633968","DOIUrl":"https://doi.org/10.1109/SPIES52282.2021.9633968","url":null,"abstract":"The State-of-Charge (SOC) estimation of lithium-ion batteries is crucial in battery management systems (BMS) for energy storage power stations. The open-circuit voltage (OCV)-SOC curve and the SOC estimation algorithm are important in SOC estimation. There exist two common OCV tests, including the low current OCV test and the incremental OCV test, for OCV-SOC curve acquirement, whose performances vary with different working conditions under $25^{circ}{C}$. To make SOC estimation more effective, the least squares support vector machines (LS-SVM) method is presented as an adaptive classifier to decide which OCV test should be applied. Besides, an adaptive square-root unscented Kalman filter (ASRUKF) algorithm is proposed to improve square-root unscented Kalman filter (SRUKF) algorithm by updating the noise covariance matrixes in real-time. Based on the Center for Advanced Life Cycle Engineering (CALCE) public data set of University of Maryland of the 18650 LFP battery under $0^{circ}{C}, 25^{circ}{C}$ and $45^{circ}{C}$, the SOC estimation algorithm based on adaptive OCV-SOC curve selection classifier is demonstrated to be precise, quick, robust and adaptive.","PeriodicalId":411512,"journal":{"name":"2021 3rd International Conference on Smart Power & Internet Energy Systems (SPIES)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116509721","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}