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Central electric thermal storage (ETS) heating systems: Impact on customer and distribution system 中央电蓄热(ETS)供热系统:对客户和分配系统的影响
PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281536
M. Moffet, F. Sirois, G. Joós, A. Moreau
{"title":"Central electric thermal storage (ETS) heating systems: Impact on customer and distribution system","authors":"M. Moffet, F. Sirois, G. Joós, A. Moreau","doi":"10.1109/TDC.2012.6281536","DOIUrl":"https://doi.org/10.1109/TDC.2012.6281536","url":null,"abstract":"This paper assesses the economical benefits of using central electric thermal storage (ETS) systems instead of regular electrical heating systems. Simulations are performed in order to compare the impact of the two heating systems, using as input typical domestic electric consumption profile over a one year period. The results are presented for two typical Quebec's house. We also consider two types of rates for the electricity cost: regular (constant) rates, and Hydro-Quebec's pilot project time of use (TOU) rates. The results obtained in this paper are also compared to a previous study done in Nova Scotia. Results show that the use of ETS heating systems can lead to savings of approximately 15% on annual electrical bill. Finally, we evaluate the impact of using ETS on a typical distribution substation load curve for a winter peaking week. With TOU rates control, we show that a penetration of approximately 4% central ETS heating systems can create a new night-time peak that is as important as the morning peak we are trying to mitigate.","PeriodicalId":19873,"journal":{"name":"PES T&D 2012","volume":"72 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2012-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89426378","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
Novel design methodology for C-type harmonic filter banks applied in HV and EHV networks 应用于高压和超高压电网的c型谐波滤波器组的新设计方法
PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281629
R. Horton, R. Dugan, D. Hallmark
{"title":"Novel design methodology for C-type harmonic filter banks applied in HV and EHV networks","authors":"R. Horton, R. Dugan, D. Hallmark","doi":"10.1109/TDC.2012.6281629","DOIUrl":"https://doi.org/10.1109/TDC.2012.6281629","url":null,"abstract":"The ability to filter harmonic current with adequate damping over a selected frequency range can become necessary whenever harmonic current injected by nonlinear loads has appreciable components at or near one or more of the resonant frequencies of the network. The C-type harmonic filter can be designed to meet these requirements; however, the design of these banks becomes quite challenging when the power system is networked and has existing shunt capacitor banks. Furthermore, there is very little information available in the literature regarding the design C-type filters applied in HV or EHV networks. The following paper addresses the major technical challenges associated with the design and application of C-type harmonic filter banks in HV and EHV networks, and provides a novel methodology for analyzing filter performance and determining component ratings. The paper also serves as a consolidated reference for the design and application of C-type filter banks that are installed in HV and EHV networks.","PeriodicalId":19873,"journal":{"name":"PES T&D 2012","volume":"1 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2012-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89946274","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: 20
Power fluctuation suppression system for large scale PV 大型光伏发电功率波动抑制系统
PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281714
Y. Noro, S. Naoi, K. Toba, M. Kimura, T. Minegishi, M. Shimizu, S. Aoki, Y. Okuda
{"title":"Power fluctuation suppression system for large scale PV","authors":"Y. Noro, S. Naoi, K. Toba, M. Kimura, T. Minegishi, M. Shimizu, S. Aoki, Y. Okuda","doi":"10.1109/TDC.2012.6281714","DOIUrl":"https://doi.org/10.1109/TDC.2012.6281714","url":null,"abstract":"The large scale photovoltaic (PV) generation station is expected to spread in the future. However, output power of renewable energy sources such as PV is affected by weather conditions and their output tends to be unstable. As a result, the penetration of PV power station makes it difficult to maintain frequency of power system in allowable range. The authors have developed a suppression system to stabilize output power fluctuation of a large scale PV generation station. To reduce short term fluctuation, storage batteries applying SCiBTM are used. In this paper, verification test results are explained and simulation results to improve control performance are also shown.","PeriodicalId":19873,"journal":{"name":"PES T&D 2012","volume":"37 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2012-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88061227","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: 15
Electric field distribution and their impact on transmission line composite insulators 电场分布及其对输电线路复合绝缘子的影响
PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281705
A. Phillips
{"title":"Electric field distribution and their impact on transmission line composite insulators","authors":"A. Phillips","doi":"10.1109/TDC.2012.6281705","DOIUrl":"https://doi.org/10.1109/TDC.2012.6281705","url":null,"abstract":"The electric field (E-field) distribution on transmission line composite insulators is one of the primary factors impacting its long term performance. This panel session paper will present the expected E-field distributions on composite insulators in-service as well as the resulting aging and degradation modes if the E-field exceeds threshold levels.","PeriodicalId":19873,"journal":{"name":"PES T&D 2012","volume":"114 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2012-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88163418","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: 11
A proposal for the standardization of WASA which complies with international standards 提出了符合国际标准的WASA标准化方案
PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281471
A. Ishibashi, T. Tanaka, K. Hamamatsu, Y. Ishihara, T. Kase, Y. Sumida
{"title":"A proposal for the standardization of WASA which complies with international standards","authors":"A. Ishibashi, T. Tanaka, K. Hamamatsu, Y. Ishihara, T. Kase, Y. Sumida","doi":"10.1109/TDC.2012.6281471","DOIUrl":"https://doi.org/10.1109/TDC.2012.6281471","url":null,"abstract":"Recently the importance of Wide-Area Situational Awareness (WASA) is increasing as a basis for power system stabilization systems or as a part of a smart grid. While, in Japan, power system stabilization systems have been applied for many years and a significantly long experience has been established in the application of this technology. These stabilization systems have different system configurations and applications for their specific purpose, and they are classified and systematized in this paper. On the one hand, standardization of various communication interfaces and protocols have been discussed triggered by the introduction of the concept of the smart grid, and we discuss some of those international standards which are related to WASA. Although some standards have already been published, some are still under preparation and discussion prior to official publication. Consolidation of those standards for the stabilization system is important to the standardization of WASA, and we discuss the approach to standardization and introduce a typical WASA system.","PeriodicalId":19873,"journal":{"name":"PES T&D 2012","volume":"46 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2012-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86875487","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 data mining method for selecting input variables for forecasting model of global solar radiation 全球太阳辐射预测模型输入变量选择的数据挖掘方法
PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281569
H. Mori, A. Takahashi
{"title":"A data mining method for selecting input variables for forecasting model of global solar radiation","authors":"H. Mori, A. Takahashi","doi":"10.1109/TDC.2012.6281569","DOIUrl":"https://doi.org/10.1109/TDC.2012.6281569","url":null,"abstract":"This paper proposes a method for selecting explanatory variables for global solar radiation forecasting. The weather conditions affect generation output of renewable energy significantly. As a result, smart grids increase the uncertainties caused by the power injections of photovoltaic (PV) and/or wind power generation. To smooth smart grid operation, it is necessary to select the predicted input variables for the forecasting model. In this paper, how to select explanatory variables in the forecasting model of PV generation is discussed because Japan gives much higher priority to PV generation in the framework of future energy policy. The global solar radiation is one of the most important variables in dealing with PV generation output forecasting. This paper focuses on the relationship between the global solar radiation and its explanatory variables. The proposed method makes use of the CART (Classification and Regression Trees) algorithm of data mining method to select the explanatory or input variables in the forecasting model of global solar radiation. CART has the function to give priority to explanatory variables through an index called Variable Importance. The proposed method was applied to real data of global solar radiation in Tokyo, Japan.","PeriodicalId":19873,"journal":{"name":"PES T&D 2012","volume":"71 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2012-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86362087","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: 21
An optimal reliability allocation method for digital substation systems 数字化变电站系统可靠性优化分配方法
PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281562
Yuzhou Hu, Peichao Zhang, Yongchun Su, Y. Zou
{"title":"An optimal reliability allocation method for digital substation systems","authors":"Yuzhou Hu, Peichao Zhang, Yongchun Su, Y. Zou","doi":"10.1109/TDC.2012.6281562","DOIUrl":"https://doi.org/10.1109/TDC.2012.6281562","url":null,"abstract":"In this paper, the reliability allocation issue of digital substation systems is analyzed and a new optimization allocation method for engineering applications is proposed. This paper uses the minimum cost allocation method and the feasibility-cost model to establish mathematic programming. The paper introduces the equivalent redundancy coefficient which is based on the optimal solution of the mathematic programming to measure the importance of the components. By reduplicating the most important component, the system reliability will increase in the most effective way. This paper takes a transformer bay in a typical 110kV digital substation as an example to further show the effectiveness of the method.","PeriodicalId":19873,"journal":{"name":"PES T&D 2012","volume":"62 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2012-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79151059","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: 5
Optimal volt/var control strategy for distribution system with multiple voltage regulating devices 多调压装置配电系统的最优电压/无功控制策略
PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281479
Z. Shen, Z. Wang, M. Baran
{"title":"Optimal volt/var control strategy for distribution system with multiple voltage regulating devices","authors":"Z. Shen, Z. Wang, M. Baran","doi":"10.1109/TDC.2012.6281479","DOIUrl":"https://doi.org/10.1109/TDC.2012.6281479","url":null,"abstract":"This paper studies the volt/var control strategy for smart distribution system by formulating and solving system optimization problems. In the study, solid state transformers (SST) are used for continuous var compensation, while voltage regulators (VR) are for voltage regulation. The objectives are to minimize total system power loss while maintaining voltages along the feeder within acceptable limits. A two step optimization volt/var control method for multiple, discrete/continuous mixed regulating device is introduced in this paper. Simulation results demonstrate that the proposed technique is able to achieve the objective efficiently.","PeriodicalId":19873,"journal":{"name":"PES T&D 2012","volume":"52 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2012-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77031967","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: 14
Using E-field modeling to determine the need for grading rings 使用e场建模来确定是否需要对环进行分级
PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281710
Timothy Shaw
{"title":"Using E-field modeling to determine the need for grading rings","authors":"Timothy Shaw","doi":"10.1109/TDC.2012.6281710","DOIUrl":"https://doi.org/10.1109/TDC.2012.6281710","url":null,"abstract":"Techniques used in modeling the electric field (E-field) along an insulator can greatly vary between modelers. This panel session paper will present the challenges faced when multiple modelers attempt model the same transmission line configuration. These challenges also make it difficult to accurately determine the need for a grading ring.","PeriodicalId":19873,"journal":{"name":"PES T&D 2012","volume":"52 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2012-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76397316","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
Increase transmission system utilization in systems with variable generation through risk based assessment 通过基于风险的评估，提高变速发电系统的输电系统利用率
PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281540
V. Singhvi, A. del Rosso
{"title":"Increase transmission system utilization in systems with variable generation through risk based assessment","authors":"V. Singhvi, A. del Rosso","doi":"10.1109/TDC.2012.6281540","DOIUrl":"https://doi.org/10.1109/TDC.2012.6281540","url":null,"abstract":"The continuously increasing penetration levels of variable generation in power system poses difficulty for operators to predict network operating conditions. As the uncertainty in these conditions increases, so does the need to consider larger security margins when reliability transfer limits are defined. Total Transfer Capability (TTC) defines to which extent the existing transmission assets can be utilized in a reliable manner. Thus, using highly conservative margin leads to an inefficient use of the transmission network. Therefore it is very important for operators to have an adequate methodology and tool to calculate system operating limits that allow higher utilization of the transmission network while maintain the required reliability level. The purpose of the work presented in this paper is two-fold. Firstly, to examine current industry practices to evaluate TTC under variable generation such as wind; and secondly to outline a methodology to calculate TTC in power system with a large penetration of variable generation. Preliminary results with the proposed methodology are presented through a case study conducted on the IEEE two-area Reliability Test System (RTS).","PeriodicalId":19873,"journal":{"name":"PES T&D 2012","volume":"108 ","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2012-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91446533","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
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