2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE)最新文献_第7页

Dynamic Phasor Model of Modular Multilevel Converters High Voltage DC transmission 模块化多电平变换器高压直流输电的动态相量模型

2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783292

Chengkai Shi, Gong Qingwui, Qin Liang

{"title":"Dynamic Phasor Model of Modular Multilevel Converters High Voltage DC transmission","authors":"Chengkai Shi, Gong Qingwui, Qin Liang","doi":"10.1109/CEEPE55110.2022.9783292","DOIUrl":"https://doi.org/10.1109/CEEPE55110.2022.9783292","url":null,"abstract":"When conducting system-level research, it is unacceptable to adopt a detailed MMC electromagnetic transient model to bring about the amount of calculation. Although the use of electromechanical transient simulation and electromagnetic transient hybrid simulation technology or electromagnetic transient and dynamic phasor hybrid simulation technology can retain high simulation accuracy, it is not conducive to the model mechanism analysis and the control operation. In addition, the MMC average model is also used for AC and DC transient simulation. The average modeling uses controlled power sources to describe the average response of the converter, which can also be employed to the transient simulation. Due to the modeling properties of the ABC coordinate system, the average model is only suitable for time-domain simulation. The dynamic phasor modeling method employs the d−q axis coordinate system to analyze the MMC steady-state and research the small-signal stability. The order of each component in the d−q axis coordinate system model can be selected according to the required accuracy. Thus, the MMC dynamic phasor modeling scheme has widespread application in MMC-HVDC stability research, electromechanical transient simulation and controller design, etc. This article will establish an MMC dynamic phasor model to analyze the dynamic characteristics of system circulation.","PeriodicalId":118143,"journal":{"name":"2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122325125","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

Thermal State Prediction of Transformers Based on ISSA-LSTM 基于ISSA-LSTM的变压器热状态预测

2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783331

Chao Wu, Junlian Lin, Zongchao Yu, Jiangwei Yang, Xuan Liu

引用次数: 0

A Black Start Simulation Method with Energy Storage Assistance Systems in Wind Power Consumption 风电消纳中储能辅助系统的黑启动仿真方法

2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783307

Hong Hu, Libin Wen, Jun Li, Zhiyuan Sun, Xuanren Meng, Kun Zheng

引用次数: 1

Recyclable and High-Performance Thermosetting Polymers for Digital Light Processing 3D Printing 用于数字光处理3D打印的可回收和高性能热固性聚合物

2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783401

Yingfan Zhang, Haohuan Wang, Senyuan Yang, Zhengyong Huang

引用次数: 0

Study on Sheath Voltage and Earth Potential Rises of the Hybrid Overhead-cable Lines 混合架空电缆线路护套电压和地电位上升的研究

2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783290

Qiming Gong, Kunlin Li, Jiankang Zheng, Yuqian Sheng, Shaobin Li, Yang Xu

{"title":"Study on Sheath Voltage and Earth Potential Rises of the Hybrid Overhead-cable Lines","authors":"Qiming Gong, Kunlin Li, Jiankang Zheng, Yuqian Sheng, Shaobin Li, Yang Xu","doi":"10.1109/CEEPE55110.2022.9783290","DOIUrl":"https://doi.org/10.1109/CEEPE55110.2022.9783290","url":null,"abstract":"The breakdown accidents of cable outer sheath and sheath voltage limiters frequently occur due to the unreasonable sheath bonding design. Unlike pure cable lines, the sheath voltage of hybrid overhead-cable lines could exceed the power frequency withstand voltage of outer-sheath under some circumstances. Its amplitude is closely related to the earth potential rise at the connection point of overhead lines and cables. This paper employed PSCAD-EMTDC to study the power frequency sheath overvoltage of a hybrid overhead-cable line type in the case of single-phase-to-ground fault of the overhead line terminal, where the overhead line was inserted between the cable lines applied with various sheath bonding methods. And the influence of the grounding resistance of the terminal tower and the earth continuity cable on the sheath induced voltage was also discussed. Simulation results indicated that, the earth potential rise and sheath voltage of single-point bonded cables exceed 25 kV in serious cases. Compared with the cables with sheath single-point bonded, the earth potential rise at the connection point was much lower, below 10 kV, when the overhead line was connected to the cables with sheath cross-bonded, and the grounding resistance of the terminal tower had little influence on the earth potential rise. Besides, the installation of earth continuity conductor had a markedly positive effect on the power frequency withstand performance of cable outer-sheath and sheath voltage limiters for this hybrid line type.","PeriodicalId":118143,"journal":{"name":"2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116841558","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

Sensitivity Analysis of System Power Distribution to UHVAC Line Parameters 系统配电对特高压线路参数的敏感性分析

2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783394

Shenghe Wang, Zhengyang Wu, Zhong Fu, Jinglei Deng, Fan Cheng

{"title":"Sensitivity Analysis of System Power Distribution to UHVAC Line Parameters","authors":"Shenghe Wang, Zhengyang Wu, Zhong Fu, Jinglei Deng, Fan Cheng","doi":"10.1109/CEEPE55110.2022.9783394","DOIUrl":"https://doi.org/10.1109/CEEPE55110.2022.9783394","url":null,"abstract":"Variation of the line parameters yields the change of all bus voltages, which need to be considered when quantifying the sensitivity of the power distribution to the line parameter. For long-distance ultra-high voltage AC (UHVAC) lines, the conductance and susceptance parameters of its equivalent model cannot be separated, causing difficulties to calculate the corresponding sensitivity. In this paper, by combining the partial derivatives of all power constraints to the line parameter, the sensitivities of the node voltages to the line parameters are obtained through the matrix form. Considering the variation of the line parameters and bus voltages, the analytical expression of the sensitivity of the power distribution to line parameters is derived. For long-distance UHVAC line, the partial derivatives of the admittance to the line parameters are determined by comparing the errors between the actual values from the continuous parameter modified method and the calculated values with different slopes, and the corresponding sensitivities are obtained based on the partial derivatives. The modified two-region IEEE RTS- 96 test system is applied to validate the feasibility and accuracy of the proposed model.","PeriodicalId":118143,"journal":{"name":"2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114856027","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

Carbon Emission Prediction of Thermal Power Plants Based on Machine Learning Techniques 基于机器学习技术的火电厂碳排放预测

2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783417

Chao Zhu, Peng Shi, Zhuang Li, Mingle Li, Hongji Zhang, Tao Ding

{"title":"Carbon Emission Prediction of Thermal Power Plants Based on Machine Learning Techniques","authors":"Chao Zhu, Peng Shi, Zhuang Li, Mingle Li, Hongji Zhang, Tao Ding","doi":"10.1109/CEEPE55110.2022.9783417","DOIUrl":"https://doi.org/10.1109/CEEPE55110.2022.9783417","url":null,"abstract":"Since the magnificent goal of Peak Carbon Dioxide Emissions and Carbon Neutrality was put forward in 2020, carbon emission reduction has attracted unprecedented attention. The power industry must fulfill its carbon emission reduction obligations as soon as possible. Thermal power plants are the main source of carbon emissions in the power industry, so finding out the key influencing factors of thermal-power-plant carbon emission and making accurate predictions are important measures to promote the low-carbon development of the power industry. Although some precise models have been proposed, most power plants cannot obtain all the parameters required by the precise models in the actual production practice, which limits their application. Machine learning technology accepts numerical data as input and establishes the mapping relationship between variables automatically, which results in loose requirements on data. This paper summarizes several key influencing factors of carbon dioxide emissions of thermal power plants that are easy to observe and establishes a prediction model of carbon dioxide emissions of thermal power plants based on eXtreme Gradient Boosting. In addition, we compare our method with two machine learning methods proposed in previous research and obtain a satisfactory result.","PeriodicalId":118143,"journal":{"name":"2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125367784","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

Optimal Allocation of Real Time Measurement in Distribution Network Considering Network Observability 考虑网络可观测性的配电网实时测量优化分配

2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783368

Zhensheng Wu, Deling Fan, Kemeng Li, Zhongliu Zhang

{"title":"Optimal Allocation of Real Time Measurement in Distribution Network Considering Network Observability","authors":"Zhensheng Wu, Deling Fan, Kemeng Li, Zhongliu Zhang","doi":"10.1109/CEEPE55110.2022.9783368","DOIUrl":"https://doi.org/10.1109/CEEPE55110.2022.9783368","url":null,"abstract":"Power Internet of things measurement terminal device is a new type of information distribution network equipment. If all nodes in the distribution system are equipped with measuring devices, the state estimation problem will be greatly simplified, but this configuration method is difficult to achieve due to economic constraints, so it is necessary to study the optimal distribution scheme of measuring devices. This paper presents an optimized distribution scheme for new distribution measurement terminals, establishes the mathematical model of terminal distribution based on 0-1 integer programming, and formulates the principle and process of node configuration based on tree graph search technology. Based on the measurement characteristics of the Internet of things measurement terminal device applied to power distribution, the calculation methods to make the zero injection nodes and connected nodes observable in the network are deduced, and the terminal distribution methods suitable for large and small-scale systems are proposed. In order to meet the requirements of complete observability and economy of power distribution system, the proposed two methods are configured and compared in different common network architectures.","PeriodicalId":118143,"journal":{"name":"2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128904892","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

Modeling and Analysis of Brushless Doubly-Fed Induction Generators with Non-Ideal Grids 非理想电网无刷双馈感应发电机的建模与分析

2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783125

Honglin Lu, Debin Zhang, C. Qu, Zhongsong Zhang

{"title":"Modeling and Analysis of Brushless Doubly-Fed Induction Generators with Non-Ideal Grids","authors":"Honglin Lu, Debin Zhang, C. Qu, Zhongsong Zhang","doi":"10.1109/CEEPE55110.2022.9783125","DOIUrl":"https://doi.org/10.1109/CEEPE55110.2022.9783125","url":null,"abstract":"Brushless Doubly-Fed Induction Generators (BDFIG) increase reliability and decrease maintenance cost because it removes the brushes and slip rings of the traditional Doubly-Fed Induction Generator (DFIG). It has a potential for wide application in power generation systems. Non-ideal characteristics such as symmetrical and asymmetrical dips in the grid voltage are inevitable in power generation systems. Running BDFIG in a non-ideal grid will produce low-order harmonic oscillation, which will cause the distortion in the winding voltage, resulting in serious overvoltage and overcurrent faults in motor winding, reducing the reliability of the entire power generation system. In order to provide more targeted protection for BDFIG under non-ideal grid operating conditions, this paper establishes the BDFIG model with the non-ideal power grid and analyzes its working characteristics. Firstly, establish the BDFIG model under the ideal grid and obtain the voltage characteristics of the control winding from analysis of when the power grid fails; Secondly, establish the BDFIG model under the non-ideal grid and analyze from two cases of balanced grid with low harmonic voltage and unbalanced grid with low harmonic voltage respectively. Thirdly, the relational equations of the positive and negative sequence components are derived respectively, which provides a theoretical basis for the control of positive and negative sequence components; Finally, the characteristics of BDFIG under non-ideal grid are simulated and verified by Matlab/Simulink.","PeriodicalId":118143,"journal":{"name":"2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128065878","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 Simulation Research and Verification of 750 kV ACF Circuit Breaker with Pre-insertion Resistor Structure 预插入电阻结构750kv ACF断路器故障仿真研究与验证

2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE) Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783131

H. Ni, Zhonghua Xiang, Feiyue Ma, Wei Li, Qiang Wu, Yu Wang

引用次数: 0