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2022 5th International Conference on Renewable Energy and Power Engineering (REPE)最新文献

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An Efficient Sparse Matrix Technique for Closed Loop Current Analysis in Distribution Network 一种用于配电网闭环电流分析的高效稀疏矩阵技术
2022 5th International Conference on Renewable Energy and Power Engineering (REPE) Pub Date : 2022-09-28 DOI: 10.1109/REPE55559.2022.9948978
Z. Qiu, Long Wu, Tao Zeng, Weideng Yuan, Xin Zhang, Tao Cheng
{"title":"An Efficient Sparse Matrix Technique for Closed Loop Current Analysis in Distribution Network","authors":"Z. Qiu, Long Wu, Tao Zeng, Weideng Yuan, Xin Zhang, Tao Cheng","doi":"10.1109/REPE55559.2022.9948978","DOIUrl":"https://doi.org/10.1109/REPE55559.2022.9948978","url":null,"abstract":"In order to improve the power supply reliability in distribution network, the closed loop operation is used to achieve the purpose of transferring power loads without outage. In this paper, the closed loop current is calculated by power flow method. Firstly, the three electrical islands which are affected most by closed loop operation are spliced together. At the same time, this paper expands the voltage constraints and the power change constraints of boundary nodes. Then, the sparse matrix technique is used to process the Jacobian matrix to quickly calculate the power flow. Finally, the rapidity and accuracy of the proposed method are verified by the calculation result of closed loop current of a regional power system.","PeriodicalId":115453,"journal":{"name":"2022 5th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122806536","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
Weak Feature Fault Identification and Location of Distribution Network Based on Multi-Task Learning 基于多任务学习的配电网弱特征故障识别与定位
2022 5th International Conference on Renewable Energy and Power Engineering (REPE) Pub Date : 2022-09-28 DOI: 10.1109/REPE55559.2022.9949495
Wei Wang, Bin Yu, Hui Sun, Wenzhang Guo, Yanwen Zheng, Boyang Shang, Guomin Luo
{"title":"Weak Feature Fault Identification and Location of Distribution Network Based on Multi-Task Learning","authors":"Wei Wang, Bin Yu, Hui Sun, Wenzhang Guo, Yanwen Zheng, Boyang Shang, Guomin Luo","doi":"10.1109/REPE55559.2022.9949495","DOIUrl":"https://doi.org/10.1109/REPE55559.2022.9949495","url":null,"abstract":"The field of distribution network has entered the era of “big data”, and deep learning with strong adaptive feature extraction, classification and prediction ability has also achieved fruitful results in the distribution network data processing. However, most of these studies were all performed under a single label system to achieve a single task objective. In the context of big data, single label system not only cuts off the connection between multi-tasks in fault identification of distribution network, but also can't completely describe various state information such as fault type and segment location of distribution network from fault data. Aiming at the above problems, a method of weak feature fault identification of distribution network based on multi-task learning is proposed. Its advantage lies in that it adaptively extracted the features of different target tasks from the same distribution network fault data and discriminated the types through the shared network with global feature pooling. The experimental results show that the proposed method can't only realize the classification of weak feature faults in distribution network and locate the faults in and out of sections, but also has high accuracy and calculation efficiency.","PeriodicalId":115453,"journal":{"name":"2022 5th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126246876","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
Fault Diagnosis Analysis of Distribution Network Based on Compound Statistics of Residual and Score 基于残差与分值复合统计的配电网故障诊断分析
2022 5th International Conference on Renewable Energy and Power Engineering (REPE) Pub Date : 2022-09-28 DOI: 10.1109/REPE55559.2022.9948771
Wenwei Zeng, Rui Huang, Yu Xiao, Zhiyong Wu, Xuan Liu, Hao Chen, Junwen He
{"title":"Fault Diagnosis Analysis of Distribution Network Based on Compound Statistics of Residual and Score","authors":"Wenwei Zeng, Rui Huang, Yu Xiao, Zhiyong Wu, Xuan Liu, Hao Chen, Junwen He","doi":"10.1109/REPE55559.2022.9948771","DOIUrl":"https://doi.org/10.1109/REPE55559.2022.9948771","url":null,"abstract":"It is a key tool for reducing distribution network failure loss by identifying the fault cause promptly and correctly and eliminating the fault quickly. By examining whether the Q and T2 statistics exceed the control limit, the fault diagnostic method based on Principal Component Analysis (PCA) may determine whether a fault occurs and the source of the fault by using the contribution value of Q and $mathbf{T}^{2}$. However, the outcome of this procedure is ambiguous, resulting in low diagnostic accuracy. To simplify diagnosis chores and enhance diagnosis accuracy, this research suggested a PCA fault diagnosis approach based on Compound Statistics of Residual and Score (CRS), which uses Q and T2 Statistics to produce CRS Statistics and CRS contribution value. Finally, an IEEE33 node distribution network model is created for simulation verification, and the results validate the PCA approach for defect identification based on CRS data.","PeriodicalId":115453,"journal":{"name":"2022 5th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132490773","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
Fault Location Method of Distribution Network Based on Phasor Feature 基于相量特征的配电网故障定位方法
2022 5th International Conference on Renewable Energy and Power Engineering (REPE) Pub Date : 2022-09-28 DOI: 10.1109/REPE55559.2022.9949264
Yang Yu, Tongwen Wang, Qingzhu Shao, Jun Ma, Yongzan Li, Boyang Shang, Guomin Luo
{"title":"Fault Location Method of Distribution Network Based on Phasor Feature","authors":"Yang Yu, Tongwen Wang, Qingzhu Shao, Jun Ma, Yongzan Li, Boyang Shang, Guomin Luo","doi":"10.1109/REPE55559.2022.9949264","DOIUrl":"https://doi.org/10.1109/REPE55559.2022.9949264","url":null,"abstract":"A fault location method of distribution network based on stacked denoised auto-encoder (SDAE) is proposed. The method integrates the practicability of single-end ranging and the nonlinear fitting characteristics of artificial intelligence to achieve an accurate range of distribution network lines when faults occur. The improved topology based on actual distribution lines verifies the validity of the SDAE model. The hardware closed-loop verification is carried out at the end of the study. Simulation results show that SDAE is superior to other machine learning methods in fault diagnosis and has high fault location accuracy. In addition, this method is robust to measurement noise and data loss error, which can provide an auxiliary decision for existing fault location methods.","PeriodicalId":115453,"journal":{"name":"2022 5th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130322725","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 and Implementation of the Substation Intelligent Auxiliary Control System Based on OPC UA 基于OPC UA的变电站智能辅助控制系统的设计与实现
2022 5th International Conference on Renewable Energy and Power Engineering (REPE) Pub Date : 2022-09-28 DOI: 10.1109/REPE55559.2022.9949983
Chun Zhu, Binai Li, Zhengyu Lv, Xiaoyu Zhao
{"title":"Design and Implementation of the Substation Intelligent Auxiliary Control System Based on OPC UA","authors":"Chun Zhu, Binai Li, Zhengyu Lv, Xiaoyu Zhao","doi":"10.1109/REPE55559.2022.9949983","DOIUrl":"https://doi.org/10.1109/REPE55559.2022.9949983","url":null,"abstract":"At present, the traditional substation auxiliary control system is faced with the following four problems: poor real-time capability to abnormal response, high dependence on people when solving malfunctions, the communication, deployment and expansion of different underlying devices, and the lack of security mechanism. To solve these problems or optimize the functions, an intelligent substation auxiliary control system is proposed. The system innovatively applies OPC UA to the construction of the auxiliary control system. First, through the use of OPC UA's unique object-oriented modeling method as well as the joint specification modeling of OPC UA and IEC61850, to solve the data communication problems caused by heterogeneous devices. Second, applying the Client/Server mode to realize the remote access from authorized mobile clients and give instructions, to cope with abnormal conditions, which reduces the dependency on people. Clients of other authorized enterprises are allowed to access the working data of the devices they are interested in, makes full use of massive data and ensures the information security of the system. Third, Pub/Sub mode is applied to enable the underlying devices to communicate directly with each other through the middleware, which reduces the response time of equipment joint debugging and improve the real-time performance. In addition, through OPC UA, the industrial data of the system can be transmitted over the Internet, realizing the combination of the Internet of Things and the Internet, which is an idea of the combination of the two in the future.","PeriodicalId":115453,"journal":{"name":"2022 5th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"865 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131540363","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 Coordinated Control Strategy for Flywheel Energy Storage Matrix System Based on Consensus Algorithm 基于一致性算法的飞轮储能矩阵系统协调控制策略
2022 5th International Conference on Renewable Energy and Power Engineering (REPE) Pub Date : 2022-09-28 DOI: 10.1109/REPE55559.2022.9949291
Jingjing Wang, L. Yao, S. Liao, Jian Xu, B. Mao, Jun Wang, Boyu Xie
{"title":"A Coordinated Control Strategy for Flywheel Energy Storage Matrix System Based on Consensus Algorithm","authors":"Jingjing Wang, L. Yao, S. Liao, Jian Xu, B. Mao, Jun Wang, Boyu Xie","doi":"10.1109/REPE55559.2022.9949291","DOIUrl":"https://doi.org/10.1109/REPE55559.2022.9949291","url":null,"abstract":"The randomness and fluctuation of renewable energy bring significant difficulties for operation and control of power grids. The flywheel energy storage system (FESS) provides a new solution in dealing with high frequency power fluctuation of renewable energy generation, due to its unique characteristics of fast dynamic response, long service life, unlimited charge/discharge times, and high power density. To consider the capacity requirement for power grid control in practical application scenarios, multiple flywheel energy storage units are usually integrated in parallel into the power grid, and the flywheel energy storage matrix system (FESMS) is therefore formed. In order increase the controllability of the FESMS integrated into the wind farm for practical application, this paper proposed a coordinated control strategy of the FESMS based on a consensus algorithm. By taking charge/discharge ratio of each flywheel energy storage unit as the consensus index and also coordinating the operation power of each unit in the FESMS by a distribution algorithm, the power fluctuation of the wind farm is smoothed. Finally, the effectiveness of the proposed control method is verified by simulation.","PeriodicalId":115453,"journal":{"name":"2022 5th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130834401","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
The Influence of Carbon Price on the Transmission Cost of UHV Power System 碳价对特高压电力系统输电成本的影响
2022 5th International Conference on Renewable Energy and Power Engineering (REPE) Pub Date : 2022-09-28 DOI: 10.1109/REPE55559.2022.9949125
Zelong Zhang, Zhao Yang, Y. Yang, Qiang Ji
{"title":"The Influence of Carbon Price on the Transmission Cost of UHV Power System","authors":"Zelong Zhang, Zhao Yang, Y. Yang, Qiang Ji","doi":"10.1109/REPE55559.2022.9949125","DOIUrl":"https://doi.org/10.1109/REPE55559.2022.9949125","url":null,"abstract":"The carbon peaking and carbon neutrality goals in China will further promote the collecting of carbon emission tax. This change of carbon emission policy will have an important impact on the economy of UHV power system. Due to the carbon price influence the economy of different transmission lines, we construct a economic evaluation model of UHV power system including carbon price to analysis the cost of per kilowatt hour of transmission. This model is based on the life-cycle cost theory (LCC). From the aspects of cost and revenue, we construct the comparative evaluation models are adopted to evaluate the economy and cost per kilowatt hour of UHV power system. One model is considering the carbon emission quota and the other isn't consider the quota. These models providing theoretical basis for the planning and construction of UHV power system. Finally, we use case study to analyze electricity cost per kilowatt hour of UHV power transmission under different carbon prices. The case verified the influence of carbon price on the economics of UHV power system.","PeriodicalId":115453,"journal":{"name":"2022 5th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132848550","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
Influence of Grid Structure Change on Resonance Frequency of Distributed Photovoltaic Cluster Grid-Connected System 网格结构变化对分布式光伏集群并网系统共振频率的影响
2022 5th International Conference on Renewable Energy and Power Engineering (REPE) Pub Date : 2022-09-28 DOI: 10.1109/REPE55559.2022.9949526
Jing Gao, Yi Lu, Yuan Zhao
{"title":"Influence of Grid Structure Change on Resonance Frequency of Distributed Photovoltaic Cluster Grid-Connected System","authors":"Jing Gao, Yi Lu, Yuan Zhao","doi":"10.1109/REPE55559.2022.9949526","DOIUrl":"https://doi.org/10.1109/REPE55559.2022.9949526","url":null,"abstract":"As the number of distributed photovoltaics in the power grid continues to increase, the inherent resonance points of distributed photovoltaic cluster grid-connected systems become more complex. This paper firstly analyzes the grid structure of the distributed photovoltaic cluster grid-connected system. Then, the grid structure and resonance coupling relationship of single inverter, and the grid structure and resonance coupling relationship of cluster grid-connected inverters are analyzed. Based on the above analysis, the resonant frequency distribution of the distributed photovoltaic cluster grid-connected system is obtained. Then, the influence mechanism of the grid structure on the resonance is analyzed. Finally, it is verified by simulation that the change of the grid structure will cause the change of the resonant frequency distribution of the distributed photovoltaic cluster grid-connected system.","PeriodicalId":115453,"journal":{"name":"2022 5th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130974865","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 of Comprehensive Defense System for UHV AC and DC Power Grids Security 特高压交直流电网安全综合防御系统设计
2022 5th International Conference on Renewable Energy and Power Engineering (REPE) Pub Date : 2022-09-28 DOI: 10.1109/REPE55559.2022.9949152
Wei Chen, Yunting Song, Jing Gou, Ziqi Wang, Min Li, Yafei Ding, Shaoxuan Zhu
{"title":"Design of Comprehensive Defense System for UHV AC and DC Power Grids Security","authors":"Wei Chen, Yunting Song, Jing Gou, Ziqi Wang, Min Li, Yafei Ding, Shaoxuan Zhu","doi":"10.1109/REPE55559.2022.9949152","DOIUrl":"https://doi.org/10.1109/REPE55559.2022.9949152","url":null,"abstract":"In today's China, UHV AC and DC hybrid power grid has the new feature of “strong HVDC and weak AC system” and power electronization. Response to this new situation, in order to effectively reduce the risk of large-scale power outages in power grid, it is necessary to build a secure and reliable comprehensive defense system for power grid security to ensure secure and stable operation of China's power system. Based on the current three defense lines in China, this paper argues the goals and design principles of the UHV AC and DC power grid security defense system that adapt to the new characteristics of China's power grid, and designs the overall structure of the UHV AC/DC power grid security defense system, main functions and specific configuration schemes.","PeriodicalId":115453,"journal":{"name":"2022 5th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129999916","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
Optimal Allocation of Electrochemical Energy Storage of Source-Grid-Load Sides in Power System Considering Social Benefit 考虑社会效益的电力系统源网负荷侧电化学储能优化配置
2022 5th International Conference on Renewable Energy and Power Engineering (REPE) Pub Date : 2022-09-28 DOI: 10.1109/REPE55559.2022.9949460
Miao Yu, Zheng Qi, Guan Lan
{"title":"Optimal Allocation of Electrochemical Energy Storage of Source-Grid-Load Sides in Power System Considering Social Benefit","authors":"Miao Yu, Zheng Qi, Guan Lan","doi":"10.1109/REPE55559.2022.9949460","DOIUrl":"https://doi.org/10.1109/REPE55559.2022.9949460","url":null,"abstract":"To improve the comprehensive utilization of three-side electrochemical energy storage (EES) allocation and the toughness of power grid, an EES optimization model considering macro social benefits and three-side collaborative planning is put forward. Firstly, according to the principle that conventional units and energy storage help absorb new energy output fluctuation, the EES operation mode is determined. Secondly, a comprehensive economic model is established considering the social benefit of EES, covering energy saving and emission reduction on the power generation side, reduction of power grid line loss and power outage loss on the grid side, and delay of equipment loss and backup configuration on the user side. The overall goal of model is to maximize the macro social benefit. Finally, the Nondominated Sorting Genetic Algorithm with Elitist Strategy (NSGA-II) is applied for the multi-objective majorization model, and an example is analyzed based on the improved IEEE 30-node network, providing a reference for the allocation of EES in electric system.","PeriodicalId":115453,"journal":{"name":"2022 5th International Conference on Renewable Energy and Power Engineering (REPE)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134258728","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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