2019 IEEE Texas Power and Energy Conference (TPEC)最新文献_第8页

Analytical Approach to Study the Impacts of Mutual Coupling on Transmission Lines Protection Systems 研究互耦对输电线路保护系统影响的分析方法

2019 IEEE Texas Power and Energy Conference (TPEC) Pub Date : 2019-01-29 DOI: 10.1109/TPEC.2019.8662193

Azade Brahman, Dilan Novosad, M. Tabrizi, T. Cook, Weijen Lee

{"title":"Analytical Approach to Study the Impacts of Mutual Coupling on Transmission Lines Protection Systems","authors":"Azade Brahman, Dilan Novosad, M. Tabrizi, T. Cook, Weijen Lee","doi":"10.1109/TPEC.2019.8662193","DOIUrl":"https://doi.org/10.1109/TPEC.2019.8662193","url":null,"abstract":"While there are numerous literatures that have addressed the impact of mutual coupling on the reliability and security of protection schemes and have provided possible mitigation solutions, there has not been adequate research and documentation presenting a comprehensive analytical approach to 1) estimate the magnitude of mutual coupling and 2) quantify the adverse impact of mutual coupling in real-life scenarios under several system faults across various types of protective elements. This should be considered as the first stage of any mutual coupling related study preceding the second stage in which the mitigation against mutual coupling is to be developed. The proposed methodology can be used to study the impact of mutual coupling on ground overcurrent relays, ground and phase distance as well as pilot protection schemes. As part of the proposed approach, EMT simulation is utilized to quantify the extent of sub-transient overshoot and current reversal that may have adverse impact on the performance of studied relays. A real-life case study within the ERCOT network has been used to demonstrate the proposed study approach.","PeriodicalId":424038,"journal":{"name":"2019 IEEE Texas Power and Energy Conference (TPEC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127461336","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

A New Approach for Steady-State Analysis of a Hybrid ac-dc Microgrid 交直流混合微电网稳态分析新方法

2019 IEEE Texas Power and Energy Conference (TPEC) Pub Date : 2019-01-17 DOI: 10.1109/TPEC.2019.8662128

M. Rezvani, S. Mehraeen

{"title":"A New Approach for Steady-State Analysis of a Hybrid ac-dc Microgrid","authors":"M. Rezvani, S. Mehraeen","doi":"10.1109/TPEC.2019.8662128","DOIUrl":"https://doi.org/10.1109/TPEC.2019.8662128","url":null,"abstract":"The dc grid became more popular, by emerging the distributed generations (DGs). Despite this popularity, the dc grid is not yet widely used because the majority of loads in a power system are ac, which means the ac grid is still the dominant grid in the power system. Therefore, the concept of a hybrid ac-dc microgrid was emerged because of this contradiction. Hybrid ac-dc microgrid was introduced in order to exploit the benefits of both ac and dc microgrids. However, the combination of both ac and dc microgrids will add more complexity to the network. Because in all studies for hybrid ac-dc microgrid, such as steady-state analysis or dynamic study, two sets of equations should be considered and solved either separately or simultaneously, the solutions that were presented before. These solutions increase the time of simulation and operation.In this paper, a novel procedure for steady-state analysis of a general hybrid ac-dc microgrid is proposed. In this technique, the dc microgrids will be transferred to the ac side by proposing two lemmas and then the whole grid will be analyzed as one ac network. It will be proved that not only the new ac grid has the same power flow result with the initial topology of the ac-dc microgrid, but also the simulation time of the proposed method is less than the other existing methods.","PeriodicalId":424038,"journal":{"name":"2019 IEEE Texas Power and Energy Conference (TPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129513988","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: 8

Budget Allocation for Power Networks Reliability Improvement: Game-Theoretic Approach 电网可靠性改进预算分配:博弈论方法

2019 IEEE Texas Power and Energy Conference (TPEC) Pub Date : 2018-09-15 DOI: 10.1109/TPEC.2019.8662165

Hamzeh Davarikia, M. Barati, Y. Chan, K. Iqbal

引用次数: 3

Optimal Power Flow with Disjoint Prohibited Zones: New Formulation and Solutions 具有不相交禁区的最优潮流:新公式和解决方案

2019 IEEE Texas Power and Energy Conference (TPEC) Pub Date : 2018-05-09 DOI: 10.1109/TPEC.2019.8662196

Xian Liu, Hamzeh Davarikia

引用次数: 7