2017 North American Power Symposium (NAPS)最新文献_第3页

Power system frequency control using Type-4 wind turbine generators 电力系统频率控制采用4型风力发电机

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107393

F. Wilches-Bernal, J. Chow, J. Sanchez-Gasca

引用次数: 1

Enhancing backup protection for thermal power generating stations using sampled values 利用采样值加强火电站的后备保护

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107323

Sruthi Chilukuri, Matchyaraju Alla, B. Johnson

{"title":"Enhancing backup protection for thermal power generating stations using sampled values","authors":"Sruthi Chilukuri, Matchyaraju Alla, B. Johnson","doi":"10.1109/NAPS.2017.8107323","DOIUrl":"https://doi.org/10.1109/NAPS.2017.8107323","url":null,"abstract":"Evaluation of relay misoperations provides an opportunity to improve the design of backup protection schemes. Existing generator station backup protection schemes use distance protection (21) or voltage controlled/restrained overcurrent protection (51V) elements for clearing phase faults that are not cleared by either line protection or generator protection. Many schemes also use transformer ground overcurrent protection (51NG) for backup protection for ground faults on the system. Since generator protection can only respond to faults with fault resistance accurately when only there is no remote infeed from the other terminals, designing a secure backup protection for a generating station during remote infeed conditions is a challenge. Apart from the remote infeed, fast response of automatic excitation controllers also affects the current seen by the generator protection relay. Considering these effects, different vendors have different approaches for setting the 21 element. In order to analyze these recommendations, this paper studies the performance of synchronous generators for a thermal power station connected through a breaker and half scheme using Real Time Digital Simulator (RTDS) simulations. This paper proposes a new approach to enhance the performance and coverage of backup protection schemes by using sampled values of the IEC 61850 standard. In addition to that, this paper also address the challenges associated with the existing generator protection schemes based on breaker auxiliary contacts and under current elements and proposes a solution using a synchronism check element which uses sampled values. These two techniques can be used in the existing generating station protection schemes to improve the reliability and security of these schemes.","PeriodicalId":296428,"journal":{"name":"2017 North American Power Symposium (NAPS)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114993246","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: 3

A review of transformer aging and control strategies 变压器老化及控制策略综述

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107234

S. Gourisetti, H. Kirkham, Deepak Sivaraman

引用次数: 9

Study of the impact of longitudinal variations in ambient conditions on transmission line voltage stability margin 环境条件纵向变化对输电线路电压稳定裕度影响的研究

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107239

Mahbubur Rahman, Christoph Braun, V. Cecchi

{"title":"Study of the impact of longitudinal variations in ambient conditions on transmission line voltage stability margin","authors":"Mahbubur Rahman, Christoph Braun, V. Cecchi","doi":"10.1109/NAPS.2017.8107239","DOIUrl":"https://doi.org/10.1109/NAPS.2017.8107239","url":null,"abstract":"Electric power transmission lines span through wide geographical areas, experiencing different ambient conditions. Varying weather conditions along the length of the line introduce changing conductor temperatures and hence non-uniform distribution of line electrical parameters along its length. This non-uniform distribution of electrical parameters is expected to impact line power handling capabilities. In order to investigate the impact of longitudinal variations in weather conditions on line voltage stability margins, a line model segmentation approach is used in this work. This line modeling approach, which accounts for non-uniformities in line parameters, divides the line model into multiple lumped parameter segments based on the degree of change in weather conditions. The multi-segment line model and a simple weighted average approach, in which a single segment with parameters calculated at the weighted average conductor temperature along the line is employed, are used in this paper to study the impact on line voltage stability margin. Simulation results are compared with the static line rating approach, in which a set of predefined weather conditions is used for line modeling. Noticeable differences were found in line voltage stability margins when longitudinal changes in ambient conditions were taken into account.","PeriodicalId":296428,"journal":{"name":"2017 North American Power Symposium (NAPS)","volume":"192 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123216114","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: 3

Position sensorless and adaptive speed design for controlling brushless DC motor drives 控制无刷直流电动机驱动的无位置传感器和自适应速度设计

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107246

S. Geraee, M. Shafiei, A. Sahami, S. Alavi

引用次数: 12

A comparison of three parallel processing methods for a resource allocation problem in the smart grid 智能电网资源分配问题的三种并行处理方法的比较

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107204

B. Celik, S. Suryanarayanan, A. A. Maciejewski, H. Siegel, S. Sharma, R. Roche

引用次数: 8

An innovative localized retail electricity market based on energy broker and search theory 基于能源经纪人和搜索理论的创新本土化零售电力市场

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107199

Tao Chen, Wencong Su, Yi-Su Chen

引用次数: 10

A multiobjective approach to the management of opt-in distributed energy resources 可选分布式能源管理的多目标方法

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107268

S. Tu, Boris Defourny, S. Moazeni

引用次数: 0

Impact of communication latencies and availability on droop-implemented primary frequency regulation 通信延迟和可用性对下垂实现的主频率调节的影响

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107356

F. Wilches-Bernal, Ricky J. Concepcion, R. Byrne

引用次数: 7

Internal model control of solid state transformer for microgrid stability enhancement 提高微电网稳定性的固态变压器内模控制

2017 North American Power Symposium (NAPS) Pub Date : 2017-09-01 DOI: 10.1109/NAPS.2017.8107221

M. Monika, R. Meshram, S. Wagh, A. Stankovic

引用次数: 3