2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES)最新文献_第2页

Understanding the Effects of Electrical Sliding Speed on Contact Characteristics of On-Load Tap Changers 了解电滑动速度对有载分接开关接触特性的影响

2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES) Pub Date : 2022-09-23 DOI: 10.1109/AEES56284.2022.10079328

Xingzu Yang, Shuaibing Li, Yongqiang Kang, Lilong Dou

{"title":"Understanding the Effects of Electrical Sliding Speed on Contact Characteristics of On-Load Tap Changers","authors":"Xingzu Yang, Shuaibing Li, Yongqiang Kang, Lilong Dou","doi":"10.1109/AEES56284.2022.10079328","DOIUrl":"https://doi.org/10.1109/AEES56284.2022.10079328","url":null,"abstract":"This paper analyzes the influence of sliding speed on the electrical contact performance and tribological characteristics of on-load tap changer (OLTC) contacts. The current-carrying friction and wear test of copper-tinned and copper contact couple in an insulating oil medium is carried out to simulate a real oil-immersed on-load tap changer's contact switching and operation process to reveal the contact deterioration and wear mechanism. The results show that the contact resistance between contacts increases with sliding speed. When the sliding speed is 119 mm/s, the maximum contact resistance is 0.3 Ω. At the same time, the average contact resistance presents a “U”-shaped curve change, which increases slowly in the initial stage, decreases gradually after 50 mm/s, and reaches the minimum at 76 mm/s-95 mm/s. Then it increases rapidly, and the arc erosion phenomenon turns to be intensified. The micromorphology and element analysis shows that the surface wears mechanism of moving contact changes from abrasive wear, adhesive wear, and delamination wear to abrasive wear, adhesive wear, delamination wear, and arc erosion large erosion pits on the surface. In addition, about 95 mm/s is a critical threshold. Below this threshold speed, the increase of contact resistance is mainly caused by mechanical wear. Beyond this threshold, non-mechanical factors such as arc erosion and chemical oxidation aggravate the deterioration of the contact surface, increasing contact resistance.","PeriodicalId":227496,"journal":{"name":"2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126510456","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

An Emergency Control Strategy of Short-Time HVDC for Frequency Stability 基于频率稳定的短时高压直流应急控制策略

2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES) Pub Date : 2022-09-23 DOI: 10.1109/AEES56284.2022.10079663

Yu Zhang, Qianyan Wang, Xiaoru Wang, Long Chen

{"title":"An Emergency Control Strategy of Short-Time HVDC for Frequency Stability","authors":"Yu Zhang, Qianyan Wang, Xiaoru Wang, Long Chen","doi":"10.1109/AEES56284.2022.10079663","DOIUrl":"https://doi.org/10.1109/AEES56284.2022.10079663","url":null,"abstract":"With the increase of the proportion of the new energy resources, the rotational inertia of the power system decreases, which results in the risk of frequency instability increasing. In this paper, the method achieves an energy optimization control of high voltage DC transmission (HVDC) to improve the frequency stability. Firstly, according to the characteristics of the short-time overload of HVDC, the system frequency response model that considers the power support and starting-time is developed. The influence of different power support and starting-time on the frequency nadir is analyzed. It is found that there is an optimal starting-time for a given power support to maximize the frequency nadir, and the relationship between the power support and the maximum frequency nadir is not linearly increasing. Then, a optimization control method is proposed, which can not only recover the frequency nadir of the disturbed system above the threshold value of frequency stability with minimum energy, but also meet the security requirement of the frequency of interconnection system of HVDC. Simulation results demonstrate the effectiveness and correctness of proposed method.","PeriodicalId":227496,"journal":{"name":"2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115259524","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

Development of Novel Transient Fault Recording System Used in Distribution Network 新型配电网暂态故障记录系统的研制

2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES) Pub Date : 2022-09-23 DOI: 10.1109/AEES56284.2022.10079344

Gang Fang, Qiang Xu, Wenrui Wang, Fanglin Lu, Jiansheng Mao, Shan Jiang

{"title":"Development of Novel Transient Fault Recording System Used in Distribution Network","authors":"Gang Fang, Qiang Xu, Wenrui Wang, Fanglin Lu, Jiansheng Mao, Shan Jiang","doi":"10.1109/AEES56284.2022.10079344","DOIUrl":"https://doi.org/10.1109/AEES56284.2022.10079344","url":null,"abstract":"With the increasing scale of the power grid, real-time monitoring requirements for on-site data of power systems in various countries around the world are getting higher and higher. The high-voltage distribution network is widely distributed, spanning rivers, mountains, deep valleys, jungles, and other complex and variable environments so that it is susceptible to short-circuit faults caused by various natural disasters and other environmental factors. Aiming at the high proportion of single-phase grounding faults in the distribution network, the transient fault recording system is used to locate the fault. Fault indicators are consisted of three acquisition units installed on three-phase lines, an aggregation unit, and a master station. In this paper, a new type of transient fault recording system with high sampling rate and high precision clock synchronization is researched and developed. And introduced its hardware structure and function realization. Field experiments have proven that the developed fault recording system work reliably and can effectively collect three-phase transient currents in the distribution network.","PeriodicalId":227496,"journal":{"name":"2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126974307","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

Adaptive Control Strategy for Primary Frequency Regulation of Energy Storage Battery Banks with SOC SOC储能电池组一次调频的自适应控制策略

2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES) Pub Date : 2022-09-23 DOI: 10.1109/AEES56284.2022.10079467

Wei Chen, Zhicheng Ma, Wenfei Liu, Haiying Dong

{"title":"Adaptive Control Strategy for Primary Frequency Regulation of Energy Storage Battery Banks with SOC","authors":"Wei Chen, Zhicheng Ma, Wenfei Liu, Haiying Dong","doi":"10.1109/AEES56284.2022.10079467","DOIUrl":"https://doi.org/10.1109/AEES56284.2022.10079467","url":null,"abstract":"In view of the frequency fluctuation caused by the power dynamic imbalance between power system and load when a large number of new energy sources are connected to the grid, this paper proposes a balanced operation strategy that takes into account the demand of grid frequency regulation, the state of charge (SOC) of energy storage batteries and the participation of multiple battery energy storage systems (BESS) in frequency regulation. The primary frequency regulation adaptive control strategy. The strategy is based on the demand of grid frequency regulation, firstly, the frequency deviation is partitioned to determine the throughput flow of battery power, secondly, the adaptive regulation of frequency regulation is achieved based on sag control for single group of BESS in different SOC states, and at the same time, considering the uneven power output of multiple groups of BESS participating in frequency regulation, balanced control is introduced on the basis of single unit frequency regulation to achieve the liaison and cooperation of multiple units of frequency regulation. Finally, based on Matlab/Simulink platform, the simulation verifies the correctness and effectiveness of the mentioned adaptive control strategy.","PeriodicalId":227496,"journal":{"name":"2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126166705","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

Study on the Corrosion of Grounding Devices in Power System after Lightning Strike 雷击后电力系统接地装置腐蚀的研究

2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES) Pub Date : 2022-09-23 DOI: 10.1109/AEES56284.2022.10079662

Xiaofei Xia, Bo Feng, Yi Su, X. Rao, Yu-feng Lu, Fei Li

{"title":"Study on the Corrosion of Grounding Devices in Power System after Lightning Strike","authors":"Xiaofei Xia, Bo Feng, Yi Su, X. Rao, Yu-feng Lu, Fei Li","doi":"10.1109/AEES56284.2022.10079662","DOIUrl":"https://doi.org/10.1109/AEES56284.2022.10079662","url":null,"abstract":"Because of the differences in temperature, humidity and pH value of the soil where the grounding grids located, the corrosion of the grounding grids is different, resulting in a large range of the grounding resistance. The severely corroded grounding grids will generate extremely high residual voltage after lightning strike and lead to the increase of ground potential near the electrical equipment and causes safety hazard to people and electrical equipment. Lightning impulse current also accelerates the corrosion of the grounding grids. In order to further grasp the influence of lightning on the corrosion of the grounding grids, the change law of the corrosion under lighting impulse current and power frequency current is analyzed in this paper. It is found that both lightning current and power frequency current have influence on the corrosion of the grounding grids through theoretical analysis and experiments. According to the conditions of chemical reaction, the electrical charge acts as a catalyst. Compared with a large number of electrical charges left by power frequency current, lightning impulse current leaves a small amount of it because of the extremely short treatment time. Therefore, lightning impulse current has more severe impact in the long term.","PeriodicalId":227496,"journal":{"name":"2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129791191","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

Review of Fatigue Life 疲劳寿命研究综述

2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES) Pub Date : 2022-09-23 DOI: 10.1109/AEES56284.2022.10079522

Tiangeng Li, Shuaibing Li, Bing-zheng Cao, Xiaowei Zhao, Yongqiang Kang, Hongwei Li

引用次数: 0

An Optimal Control Strategy for Photovoltaic Hydrogen Production with Dynamic Regulation 动态调节的光伏制氢最优控制策略

2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES) Pub Date : 2022-09-23 DOI: 10.1109/AEES56284.2022.10079305

Qinggen Li, Haiying Dong

{"title":"An Optimal Control Strategy for Photovoltaic Hydrogen Production with Dynamic Regulation","authors":"Qinggen Li, Haiying Dong","doi":"10.1109/AEES56284.2022.10079305","DOIUrl":"https://doi.org/10.1109/AEES56284.2022.10079305","url":null,"abstract":"Because of the fluctuation and periodicity of photovoltaic power generation, resulting in low energy conversion efficiency and low photovoltaic utilization rate of the photovoltaic hydrogen production system, an optimal control strategy for the photovoltaic hydrogen production system with dynamic regulation characteristics is proposed. This strategy takes the maximum hydrogen production rate and the minimum total number of electrolytic cells as the optimization objectives and establishes the optimization control model of the direct coupling system of photovoltaic hydrogen production. According to the real-time photovoltaic output, the particle swarm optimization algorithm is used to obtain the optimal solution for the electrolytic cell configuration. On this basis, the internal structure of the electrolytic cell is adjusted to achieve the purpose of dynamic adjustment. Combined with the measured radiation data in a certain area, the simulation analysis verifies the feasibility and effectiveness of the optimal control strategy of the photovoltaic hydrogen generation system to improve the energy conversion efficiency of the direct coupling system of photovoltaic and electrolyzer and improve the utilization rate of photovoltaic.","PeriodicalId":227496,"journal":{"name":"2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127174135","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

Research on Optimization Method of Multi-source Coordination Weekly Time Scale Power Generation in High-Proportion Renewable Energy Transmission-End Power Grid 高比例可再生能源输端电网多源协调周时标发电优化方法研究

2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES) Pub Date : 2022-09-23 DOI: 10.1109/AEES56284.2022.10079309

Pengfei Gao, Qiang Zhou, Zhenzhen Zhang, Long Zhao, Yanqi Zhang, Qingquan Lv

{"title":"Research on Optimization Method of Multi-source Coordination Weekly Time Scale Power Generation in High-Proportion Renewable Energy Transmission-End Power Grid","authors":"Pengfei Gao, Qiang Zhou, Zhenzhen Zhang, Long Zhao, Yanqi Zhang, Qingquan Lv","doi":"10.1109/AEES56284.2022.10079309","DOIUrl":"https://doi.org/10.1109/AEES56284.2022.10079309","url":null,"abstract":"In order to take full advantage of the weekly time scale operating characteristics and complementary characteristics of various powers, this paper studies the operating characteristics of wind power, photovoltaic, concentrating solar and thermal power on the weekly time scale, and the complementary operating characteristics. By studying the historical data of wind power and photovoltaic daily power generation throughout the year, the daily power generation of wind power and photovoltaic is divided into typical daily power generation scenarios, and complementary power generation combination modes under weekly time scales are obtained. By combining optimization model, a combination optimization method for weekly time scale units is proposed. Finally, through the actual calculation example in a certain area grid, the effectiveness of the unit combination optimization method proposed in this section for the weekly planning of wind power-photovoltaic-concentrating solar-thermal power combined power generation is verified.","PeriodicalId":227496,"journal":{"name":"2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125962857","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 Installation Capacity of the Solar- Thermal Power Station Considering Transient Voltage Stability 考虑暂态电压稳定的光热电站装机容量优化配置

2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES) Pub Date : 2022-09-23 DOI: 10.1109/AEES56284.2022.10079380

Y. Wang, Zhicheng Ma, Jinping Zhang, Qiang Zhou, Ruiping Zhang, Haiying Dong

{"title":"Optimal Allocation of Installation Capacity of the Solar- Thermal Power Station Considering Transient Voltage Stability","authors":"Y. Wang, Zhicheng Ma, Jinping Zhang, Qiang Zhou, Ruiping Zhang, Haiying Dong","doi":"10.1109/AEES56284.2022.10079380","DOIUrl":"https://doi.org/10.1109/AEES56284.2022.10079380","url":null,"abstract":"The research on the optimal allocation of installed capacity of the solar-thermal power station is carried out for the DC (Direct Current) transmission operation scenario of new energy base. Firstly, establishes the output model of system power timing operation characteristics. Secondly, taking transient voltage stability and DC transmission capacity as objective functions, establishes the installation capacity configuration model of the solar-thermal power station based on time series production simulation, and obtain the optimal installation capacity of the solar-thermal power station. Finally, based on CPLEX, simulates the system in a certain area of Gansu Province, and obtain the optimal configuration scheme of install capacity of the solar-thermal power station. The results show that the transient voltage stability recovery index is 0.348 when configure the 100 MW the solar-thermal power station, and the voltage support ability of the system is strong. The research shows that the optimal allocation of install capacity of the solar-thermal power station can reduce the abandonment rate of wind power and photovoltaic, and improve the consumption rate of new energy, so as to realize the efficient development and utilization of wind power and photovoltaic in Gansu new energy base.","PeriodicalId":227496,"journal":{"name":"2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126003784","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

Research on the Application of Distributed Consensus Control in Microgrids 分布式共识控制在微电网中的应用研究

2022 3rd International Conference on Advanced Electrical and Energy Systems (AEES) Pub Date : 2022-09-23 DOI: 10.1109/AEES56284.2022.10079426

Rui Zhang, Mingche Li, Zongjie Fang, Lihui Qiao

引用次数: 0