2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2)最新文献_第7页

Modeling and Optimization Design of a New Type of Electric Energy Actuator Based on Dielectric Barrier Discharge 基于介质阻挡放电的新型电能执行器建模与优化设计

2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2) Pub Date : 2020-10-30 DOI: 10.1109/EI250167.2020.9347035

Jingxuan He, Qian Guo, Z. Du, Xichen Zhang

{"title":"Modeling and Optimization Design of a New Type of Electric Energy Actuator Based on Dielectric Barrier Discharge","authors":"Jingxuan He, Qian Guo, Z. Du, Xichen Zhang","doi":"10.1109/EI250167.2020.9347035","DOIUrl":"https://doi.org/10.1109/EI250167.2020.9347035","url":null,"abstract":"Aiming at the problems in current electric power systems, such as too many moving parts, large parasitic energy loss and high failure rate, a clean-energy-based electric drive actuator–dielectric barrier discharge plasma actuator (DBDPA) is proposed in this paper. Compared with the existing electric drive system, its structure is simpler, the parasitic is smaller, and the failure rate is lower. The theory analysis and multi-physics coupling simulation for DBDPA are carried out to study the influence of the amplitude and frequency of the applied AC voltage on the driving force. It is found that the driving force of a small structure model shows a nonlinear growth trend with the increase of voltage, which can reach 13. 786mN at 10kV, meanwhile there is an optimal driving frequency, around 300Hz. By improving the traditional multi-DBD actuator and optimizing the three-electrode design of the driving force system, the results prove that the new optimized design is beneficial to reducing the interference between electrodes and effectively increasing the driving force by 36.67% to 67.10%. This research can provide reference and help for the improvement of ion drive performance and its application in the field of electric drive system.","PeriodicalId":339798,"journal":{"name":"2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131962638","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 Capacitor-Isolated Balancing Circuit for Battery Modules Applied in Grid-Tied Battery Energy Storage System 应用于并网蓄电池储能系统的电池模块电容隔离平衡电路

2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2) Pub Date : 2020-10-30 DOI: 10.1109/EI250167.2020.9346685

Baiyan Sun, Congzhe Gao, Zhen Chen, Shuo Cheng, Te Sun

{"title":"A Capacitor-Isolated Balancing Circuit for Battery Modules Applied in Grid-Tied Battery Energy Storage System","authors":"Baiyan Sun, Congzhe Gao, Zhen Chen, Shuo Cheng, Te Sun","doi":"10.1109/EI250167.2020.9346685","DOIUrl":"https://doi.org/10.1109/EI250167.2020.9346685","url":null,"abstract":"This paper proposes a capacitor-isolated balancing circuit (CIBC) for battery modules in grid-tied battery energy storage system (BESS). The grid-tied converter in the BESS consists of three star-connected H bridges with lower dc bus voltage compared with three-phase converter. To realize required voltage and power, cells are series connected to form battery modules which are connected in series further to achieve high dc bus voltage and large capacity, thus leading to the fact that the voltage of a module is much higher than that of a cell. To realize the module voltage balance, a novel capacitor-isolated balancing circuit topology is proposed. In this balancing circuit the isolation capacitor withstands the offset dc voltage among battery modules instead of semiconductor switches or transformer. The voltage stress on the semiconductor switch is not higher than a battery module voltage. Besides, zero current switching is achieved in the CIBC, which improves the equalization efficiency. In the CIBC transformer is eliminated and CIBC has good modularity. Furthermore, a frequency varying control based on the model of power and impedance is presented, and the control method is easy and effective for the CIBC. The feasibility of the proposed CIBC for battery modules in BESS is validated through simulations.","PeriodicalId":339798,"journal":{"name":"2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132367166","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 Planning Method of Park-level Integrated Energy System Considering Multi-objective Collaboration 考虑多目标协同的园区级综合能源系统规划方法研究

2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2) Pub Date : 2020-10-30 DOI: 10.1109/EI250167.2020.9347057

Shiming Tian, Yuanfei Li

引用次数: 0

The Design of Substation Structure 变电站结构设计

2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2) Pub Date : 2020-10-30 DOI: 10.1109/EI250167.2020.9347339

Jie Yuan, Yanyan Zhang, H. Bai, Na Li, Quancheng Pan

引用次数: 0

Analysis about Potential Distribution of the Ur 780kV Metal-oxide Surge Arrester for 1000kV Substation 1000kV变电站u780kv金属氧化物避雷器电位分布分析

2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2) Pub Date : 2020-10-30 DOI: 10.1109/ei250167.2020.9346864

Lulu Wang, Ke Wan, Li Chen, Qingchun Qian, Jiarui Huang

{"title":"Analysis about Potential Distribution of the Ur 780kV Metal-oxide Surge Arrester for 1000kV Substation","authors":"Lulu Wang, Ke Wan, Li Chen, Qingchun Qian, Jiarui Huang","doi":"10.1109/ei250167.2020.9346864","DOIUrl":"https://doi.org/10.1109/ei250167.2020.9346864","url":null,"abstract":"Decrease the rated voltage of the arrester can optimize insulation coordination, and reduce 1000kV substation over-voltage level or lower insulation level of equipments, which can improve the economy of project. But lower rated voltage on behalf of the higher chargeability on internal resistance of the arrester, which will affect the MOA potential distribution. In order to study the potential distribution characteristics of the lower rated voltage MOA on 1000kV substation, using the software Ansys with finite element method to build 3-D model of Y20W - 780/1526 type arrester. Analysis and calculated the potential distribution of the arrester on five different kinds of grading shunt capacitors configuration scheme, selecting the optimal configuration scheme to test. The curve of potential distribution shows that the simulation results and the test results are basic consistent, the maximum relative deviation is 7.32%. This paper verified the potential distribution non-uniform coefficient of the rated voltage decreased surge arrester which used at 1000kV substation can match the engineering specification requirement, less than 1.15, by rational allocation of the grading shunt capacitors under the equalizing ring, flange and coat condition such as size structure unchanged. The research results can provide reference for the design of rated voltage decrease for UHV surge arresters.","PeriodicalId":339798,"journal":{"name":"2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133891039","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

N-1 Security-constrained Integration of Distributed Generators in Active Distribution Grids With Energy Storage Support 基于储能支持的主动配电网分布式发电机N-1安全约束集成

2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2) Pub Date : 2020-10-30 DOI: 10.1109/EI250167.2020.9346745

Jia Liu, Pingliang Zeng, Zhen He, Yalou Li, Qiuwei Wu

引用次数: 0

Extreme Risk Assessment in Power System Considering Cyber Attacks 考虑网络攻击的电力系统极端风险评估

2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2) Pub Date : 2020-10-30 DOI: 10.1109/ei250167.2020.9346650

Weijia Sun, Qi Wang, Manli Li, M. Ni

引用次数: 2

Single-Phase Grounding Fault Line Selection Method of Active Distribution Network Based on Swept Frequency Injection Signal 基于扫频注入信号的有源配电网单相接地故障选线方法

2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2) Pub Date : 2020-10-30 DOI: 10.1109/EI250167.2020.9347084

Gang Cao, Songlin Luo, Jiahe Zhu

{"title":"Single-Phase Grounding Fault Line Selection Method of Active Distribution Network Based on Swept Frequency Injection Signal","authors":"Gang Cao, Songlin Luo, Jiahe Zhu","doi":"10.1109/EI250167.2020.9347084","DOIUrl":"https://doi.org/10.1109/EI250167.2020.9347084","url":null,"abstract":"The power industry is the support of the national economy. With the continuous development of my country’s economy, the requirements for the stability of the power system are also increasing, and the massive access of new energy sources further increases the difficulty of selecting faulty lines in the distribution network. This paper uses the new energy power generation device itself to solve this problem, and proposes a single-phase grounding fault line selection method for active distribution network based on swept frequency injection signal. When a single-phase fault occurs, the inverter’s modulation strategy is changed to inject high-frequency characteristic signals into the distribution network for a short time. The feeder terminal of the distribution network completes the selection of the faulty line by analyzing the zero-sequence current of the injected signal. Based on this, a typical active distribution network simulation model is established, and the fault characteristics of different ground resistances at different locations are analyzed. It is proved that the new method is more effective than the traditional method of signal injection and can improve the accuracy of line selection.","PeriodicalId":339798,"journal":{"name":"2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125230334","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 Impact of Integrated Wind Farm on Static Voltage Stability of Power System 综合风电场对电力系统静态电压稳定性的影响研究

2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2) Pub Date : 2020-10-30 DOI: 10.1109/ei250167.2020.9347376

Nianchun Du, Fei Tang, Yifan Zhang, Xin Gao, Benxi Hu, Yuqiong Zhang

引用次数: 1

Bidding Strategies for Thermal Power Units Considering the Randomness of Renewable Energy Sources in A Unified Power Market 统一电力市场下考虑可再生能源随机性的火电机组竞价策略

2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2) Pub Date : 2020-10-30 DOI: 10.1109/ei250167.2020.9347152

Yajun Chen, Luyao Ye, Qingqing Zhou, Yufeng Jiang, Wen Qiang, Yuhan Zhang

{"title":"Bidding Strategies for Thermal Power Units Considering the Randomness of Renewable Energy Sources in A Unified Power Market","authors":"Yajun Chen, Luyao Ye, Qingqing Zhou, Yufeng Jiang, Wen Qiang, Yuhan Zhang","doi":"10.1109/ei250167.2020.9347152","DOIUrl":"https://doi.org/10.1109/ei250167.2020.9347152","url":null,"abstract":"With the advancement of a new round of power system reforms to promote the optimal allocation of power resources across regions, it is essential to build a unified national and broader power market to optimize market resource. At the same time, the rapid development of renewable energy will have a significant impact on the operation of traditional thermal power units, and the randomness of clean and renewable electric energy resource makes it more difficult for them to choose a suitable bidding strategy. Based on the above two points, this article adopts the VRE-Learning model to study how traditional thermal power units choose their own bidding strategies when participating in multiple regional markets under the influence of the randomness of renewable energy. By comparing the power and revenue of units participating in the day-ahead market across regions in different weather, different markets, and different bidding strategies, it is proved that the bidding strategy proposed in this paper can optimize the bidding behavior of traditional coal-fired units, and provide reference for the bidding strategy of thermal power units when the unified market and renewable energy are connected to the grid in the future.","PeriodicalId":339798,"journal":{"name":"2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130875333","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