2021 China International Conference on Electricity Distribution (CICED)最新文献

{"title":"SSPE Prosumer Development in China’s Electricity Grids and Markets","authors":"X. Dai, Yue Zhang","doi":"10.1109/CICED50259.2021.9556768","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556768","url":null,"abstract":"With the development of global energy transition, prosumers with both electricity generation and consumption become increasingly popular, making the electricity market reform and grid operation more and more complex. Design of future electricity market should fully consider the electrical and economic features of various electricity prosumers. This paper focuses on the traditional prosumer--Self-Supply Power Station Enterprise (SSPE) in the background of present China's electricity market. In China, most regional SSPEs were set up for industrial productions with coal-fired power plants. The future development of SSPE with energy transition is discussed. For SSPE’s participation in electricity market, an economical model of SSPE and progressive market are proposed.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115179090","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":"Users-transformer relationship identification based on smart meter data","authors":"Wei Deng, Jiran Zhu, Haiguo Tang, Wei Hu, Yue Liu, Qiuting Guo","doi":"10.1109/CICED50259.2021.9556773","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556773","url":null,"abstract":"In electric power utilities, the record of users and transformers will not update the related information on time after the connection changes due to the load balance requirements or other reasons. Manual information correction not only takes time but also requires special equipment. The paper shows the innovative method and practice in the electric power utilities of the users-transformers relationship detection. In the first step, the method extracts the high-frequency features from the current time series data by wavelet transform. Then, a mathematics model which reveals the relationship between users and transformers is created based on the Kirchhoff’s law of current. At last, the result can be achieved by solving the model with mixed integer linear programming (MILP) with participation of Groubi optimizer. The paper also shows the structure and display panel of the secondary power distribution system smart management platform. The proposed method can identify the relationship between users and transformers with smart meter data and the smart management platform helps the electric power utility staff make secondary power distribution system management better.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122636674","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":"Electric Equipment Panel Detection and Segmentation based on Mask R-CNN","authors":"Meng Zhaona, Wang Zishuo, L. Shang","doi":"10.1109/CICED50259.2021.9556705","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556705","url":null,"abstract":"This paper proposed a method for detecting the panel of equipment in the power room based on deep learning technology. For a real-time image, we can achieve the purpose of equipment panel detection and segmentation, which facilitate the task of equipment monitoring. We use the Mask R-CNN algorithm to detect how many target devices there are in the picture and to find the category corresponding to each device. In each target device, the foreground and background are distinguished at the pixel level. The method is described as follows. First of all, we collected a total of 4,500 pictures in 60 categories of power room equipment for our experiments. Next, we labeled all the pictures using Labelimg, which is an open source software for data annotation, the marked pictures were preprocessed as the data set to train and test the proposed model. The well performance on the test set shows that our proposed method has a certain implementability and effectiveness.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122912367","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":"Detection and location technology of substation personnel based on EfficientDet","authors":"Wei Jie, Yu Hong","doi":"10.1109/CICED50259.2021.9556749","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556749","url":null,"abstract":"Artificial intelligence technology has been widely used in the field of object detection and recognition. Limited by the complex working environment of power grid, the application of artificial intelligence in power grid system is just beginning. This paper focuses on a new neural network structure proposed by Google: EfficientDet. Based on the analysis of its characteristics, we applied the EfficientDet model to detect substation workers. The feasibility of applying EfficientDet model to substation personnel detection is verified. The advantages and disadvantages of EfficientDet model used in substation personnel detection and location are proved by experiments, and the possible improvement direction in the next step is discussed. The research results of this paper can also be applied to the environment of personnel location and detection in other power grid systems with a few changes.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131872261","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":"Design and application of a calibrator suitable for direct current transformer of Zhangbei VSC-HVDC Project","authors":"Zhang Shuo, Gao Shuai, Zhao Lin, Xu Zhanhe, Nie Qi, Huang Junchang","doi":"10.1109/CICED50259.2021.9556743","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556743","url":null,"abstract":"DC transformer is the core equipment to provide control, protection and measurement signal in DC transmission project, its reliable work directly affects the safety and stability of the system. In order to develop a calibrator for DC transformer of Zhangbei VSC-HVDC Project, this paper studies a precise synchronous verification scheme and a high-speed FT3 message reception and analysis scheme through the analysis of non synchronous verification and secondary signal processing, which meets the needs of FT3 message analysis under different sampling rates during field verification of transformer, and is suitable for Zhangbei VSC-HVDC Project equipment In this paper, the hardware and software structure of the calibrator system are also studied, and the error calibration test of the calibrator is carried out. Finally, the calibrator is applied in a converter station of Zhangbei VSC-HVDC Project.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132289358","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":"Quantitative Evaluation of Technical Solutions for Control of Distribution Grid with DERs","authors":"Li Shan, K. Yamane, Zechun Hu, Wen-Chuan Wu","doi":"10.1109/CICED50259.2021.9556831","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556831","url":null,"abstract":"To reduce CO2 emission and support increasing power loads, distributed energy resources (DERs) such as electric vehicle (EV) and photovoltaics (PV), are being deployed into the distribution grid. This causes various issues and also provides controllability of load side to distribution grid. In this paper the penetration ratios of DERs in future are estimated according to their trends in China. Issues including overloading caused by EV in urban area, and overvoltage caused by PV in rural area are extracted based on simulation of typical grid models. Conventional technical solutions for these issues, such as hardware upgrading, tap changing, and local control of VAR devices, and new technical solutions, such as centralized control of VAR devices, and optimal control of DERs, are evaluated quantitatively on typical grid models. Key performance indicators (KPIs) of different technical solutions were compared, the result showed Distributed Energy Resource Management System (DERMS) is the best technical solution.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114169201","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 intelligent settlement cloud platform of electric power materials based on the electronization of blockchain VAT special invoice","authors":"Du Xiaoping, Li Tao, Duan XiaoYuan","doi":"10.1109/ciced50259.2021.9556752","DOIUrl":"https://doi.org/10.1109/ciced50259.2021.9556752","url":null,"abstract":"This paper follows the pilot trend of VAT (Value Added Tax) special e-invoice, and explores a new mode of power material settlement. The intelligent settlement cloud platform of VAT special e-invoice is built based on blockchain and cloud computing, which completely realizes the intelligent connection of the whole business chain of national tax system, supplier, e-commerce platform, material supply system, ERP(Enterprise Resource Planning)system and financial system, real-time sharing of the data, intelligent interaction of the information. This platform will completely cancel the traditional comparison and examination among invoice, order and receiving information, and instead realize the automatic and accurate generation, reliable transmission and digital archiving of electronic invoice, which will promote the whole process of the settlement for materials acceptance to be networked and intelligent, greatly shorten payment cycle to suppliers, continuously optimize the business environment, and boost the digital process of finance and taxation.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114724270","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 and application of electricity retail package in electricity market of Yunnan Province","authors":"N. Zhou","doi":"10.1109/CICED50259.2021.9556801","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556801","url":null,"abstract":"In January 2017, The Government of Yunnan Province issued the implementation plan of electricity market reform for retail side. The electricity retail market has officially entered the stage of power market in Yunnan Province. The construction of power retail market is conducive to improving the activity of power market, cultivating the market awareness of power users, promoting power users to improve demand side management ability, and ensuring the safe, economic and efficient operation of power system. According to the official website of Kunming Power Exchange Center Company Limited, at present, there are 146 registered power sales companies and 33062 registered power users in Yunnan Province. The power market transactions are active, the transacted electricity quantity is increasing year by year, and the power retail market is booming. The retail package of electricity is the basis of mutual benefit and win-win between the electricity selling company and the retail users. The flexible, reasonable and effective electric retail package reflects the healthy and efficient operation of the electric retail market to a certain extent. Therefore, the research and development of electric power retail package is a very meaningful topic, which is worthy of in-depth study and practice.Firstly, based on the operation of Yunnan electric power wholesale market and electric power retail market, combined with the business practice of Yunnan electric power retail settlement payment, this paper points out the constraint boundary of the design of electric power retail package in electricity market of Yunnan province, such as the coupling constraints between electric power wholesale transaction and retail transaction, the coupling constraints between electric power wholesale settlement and retail settlement, etc. Then, combined with the characteristics of electricity load, electricity price bearing capacity, demand response and other characteristics, this paper makes a user portrait of Yunnan users, classifies and summarizes the power transaction demand of retail users, and designs the corresponding electric power retail package, such as free service, conditional service fee, price difference income, energy management and other electric power packages, which are full through the appropriate electric power retail package. It can meet the demand of electricity retail users and form a win-win situation. Secondly, this paper introduces the operation mode of all kinds of retail packages in Electricity Market of Yunnan province in detail. On the one hand, it is the business process of transaction and settlement, including the wholesale, retail transaction and settlement business process of power selling company, the transaction and settlement business process of power users, the transaction and settlement business organization flow of power exchange center et al. On the other hand, it is the cash flow and invoice flow of settlement and payment, including the cash flow ","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116106967","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 and application of smart distributed feeder automation based on 5G wireless communication","authors":"Ji Wenlu, Zhang Ming, Wang Yong, Huang Zhi, Weng Jiaming","doi":"10.1109/CICED50259.2021.9556775","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556775","url":null,"abstract":"In this paper, a smart distributed feeder automation (FA) technology based on 5G wireless communication is proposed, which can achieve fast and accurate fault removal, improve the sensitivity and rapidity of fault handling in distribution network, meet the requirements of fault handling in areas where optical fiber cannot be laid, and further improve the reliability of power supply. It is verified and tested by a practical example.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123268454","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":"The power supply unit division of the medium voltage distribution network considering the complementary of the load characteristics","authors":"Saiyi Wang, Jingsheng Sun, Haojia Wang","doi":"10.1109/CICED50259.2021.9556665","DOIUrl":"https://doi.org/10.1109/CICED50259.2021.9556665","url":null,"abstract":"The method of dividing the power supply unit considering the complementary of the load characteristic is presented to solve the problems of the large size of the network and low equipment utilization ratio caused by the lack of consideration of complementation of load characteristic in distribution network planning. First, based on the existing research results on load clustering and grid planning, the concepts of the feeder block and the power supply unit are redefined and the technical framework of MV distribution network planning considering the division of the power supply is designed. Then, the evaluation indexes of feeder block division considering the complementary of the load characteristic are set up, and rotation center line distance weighting alternate location algorithm is proposed to divide the feeder block. Further, the evaluation indexes of feeder block division considering complementary of the load characteristic are set up, and the method of dividing the power supply unit is proposed. Finally, the scientificalness and practicability of the model and method in this paper was verified through the case study.","PeriodicalId":221387,"journal":{"name":"2021 China International Conference on Electricity Distribution (CICED)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122653537","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}