2011 IEEE/PES Power Systems Conference and Exposition最新文献_第8页

Concepts of FACTS controllers FACTS控制器的概念

2011 IEEE/PES Power Systems Conference and Exposition Pub Date : 2011-03-20 DOI: 10.1109/PSCE.2011.5772582

R. Varma

引用次数: 10

Neutral grounding in wind farm medium voltage collector grids 风电场中压集热器电网中性点接地

2011 IEEE/PES Power Systems Conference and Exposition Pub Date : 2011-03-20 DOI: 10.1109/PSCE.2011.5772571

C. Feltes, R. van de Sandt, F. Koch, F. Shewarega, I. Erlich

{"title":"Neutral grounding in wind farm medium voltage collector grids","authors":"C. Feltes, R. van de Sandt, F. Koch, F. Shewarega, I. Erlich","doi":"10.1109/PSCE.2011.5772571","DOIUrl":"https://doi.org/10.1109/PSCE.2011.5772571","url":null,"abstract":"The choice of the optimum neutral grounding option for a given network always involves a trade-off between the level of permissible short-circuit current on the one hand and tolerable voltage stress at the healthy phases following a single line to ground fault on the other. Effective grounding leads to high fault currents but the concomitant voltage stress is limited. The high fault current makes the fault detection and clearance easy. For conventional power transmission and distribution networks the available options are clear, and utilities have established grounding practices. But with increasing wind energy, it is necessary to take unique features of wind farms into consideration in choosing the most suitable neutral grounding option, at least for the wind farm grids. Based on EMT type simulation using a representative 144-MW wind farm grid, the paper provides an in-depth discussion of the pros and cons of the alternative grounding strategies vis-à-vis the relevant operational requirements within a large offshore wind farm, mainly focusing on the aspects of selectivity and voltage limitation. The level of over-voltages after tripping of the affected line for the feasible grounding options will be compared and contrasted with one another. Additionally, the effects of different voltage control strategies in the wind turbines on the over-voltages will be discussed and illustrated.","PeriodicalId":120665,"journal":{"name":"2011 IEEE/PES Power Systems Conference and Exposition","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114475901","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

Support vector machine based data classification for detection of electricity theft 基于支持向量机的窃电检测数据分类

2011 IEEE/PES Power Systems Conference and Exposition Pub Date : 2011-03-20 DOI: 10.1109/PSCE.2011.5772466

S. Depuru, Lingfeng Wang, V. Devabhaktuni

{"title":"Support vector machine based data classification for detection of electricity theft","authors":"S. Depuru, Lingfeng Wang, V. Devabhaktuni","doi":"10.1109/PSCE.2011.5772466","DOIUrl":"https://doi.org/10.1109/PSCE.2011.5772466","url":null,"abstract":"Most utility companies in developing countries are subjected to major financial losses because of non-technical losses (NTL). It is very difficult to detect and control potential causes of NTL in developing countries due to the poor infrastructure. Electricity theft and billing irregularities form the main portion of NTL. These losses affect quality of supply, electrical load on the generating station and tariffs imposed on electricity consumed by genuine customers. In light of these issues, this paper discusses the problems underlying detection of electricity theft, previously implemented ways for reducing theft. In addition, it presents the approximate energy consumption patterns of several customers involving theft. Energy consumption patterns of customers are compared with and without the presence of theft. A dataset of customer energy consumption pattern is developed based on the historical data. Then, support vector machines (SVMs) are trained with the data collected from smart meters, that represents all possible forms of theft and are tested on several customers. This data is classified based on rules and the suspicious energy consumption profiles are grouped. The classification results of electricity consumption data are also presented.","PeriodicalId":120665,"journal":{"name":"2011 IEEE/PES Power Systems Conference and Exposition","volume":"56 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117171038","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: 171

A reliable low cost power electronics interface for photovoltaic energy systems using a single DSP controller 一个可靠的低成本的电力电子接口光伏能源系统使用一个单一的DSP控制器

2011 IEEE/PES Power Systems Conference and Exposition Pub Date : 2011-03-20 DOI: 10.1109/PSCE.2011.5772560

W. Shireen, A. Nagarajan, S. Patel

引用次数: 5

Application of STATCOM for power quality improvement STATCOM在电能质量改善中的应用

2011 IEEE/PES Power Systems Conference and Exposition Pub Date : 2011-03-20 DOI: 10.1109/PSCE.2011.5772500

S. Teleke, A. Yazdani, B. Gudimetla, J. Enslin, J. Castaneda

引用次数: 19

Application of Kalman filter to improve model integrity for securing electricity delivery 应用卡尔曼滤波提高模型完整性，保证电力输送安全

2011 IEEE/PES Power Systems Conference and Exposition Pub Date : 2011-03-20 DOI: 10.1109/PSCE.2011.5772609

P. Du, Zhenyu Huang, R. Diao, Barry Lee, K. Anderson

引用次数: 7

Improving hydrogeneration representation in a production cost model used for long-term transmission studies in the Western Interconnection 改善水力发电在用于西部电网长期输电研究的生产成本模型中的代表性

2011 IEEE/PES Power Systems Conference and Exposition Pub Date : 2011-03-20 DOI: 10.1109/PSCE.2011.5772586

C. M. Dennis, R. C. Walish, H. Pacini, T. Chisholm, T. Acker

{"title":"Improving hydrogeneration representation in a production cost model used for long-term transmission studies in the Western Interconnection","authors":"C. M. Dennis, R. C. Walish, H. Pacini, T. Chisholm, T. Acker","doi":"10.1109/PSCE.2011.5772586","DOIUrl":"https://doi.org/10.1109/PSCE.2011.5772586","url":null,"abstract":"The Western Electricity Coordinating Council, recognizing the importance of interconnection-wide transmission planning, formed the Transmission Expansion Planning Policy Committee (TEPPC) in 2006. TEPPC is tasked with conducting regional transmission expansion planning studies involving system modeling; as well as performing analyses of future transmission congestion and operational impacts. TEPPC utilizes the production cost model (PCM) PROMOD IV© to model the Western Interconnection for these studies. In certain geographic regions, a high level of hydropower penetration necessitates careful consideration of hydrogeneration models used in the PCM to produce the most accurate system results. This work details the hydro modeling methods utilized by TEPPC for improving hourly hydrogeneration time series representations in transmission planning studies. The justification and benefits for using these methods are outlined in this paper, and the results of a 2019 transmission study are shown to illustrate of the advantages for employing these methods.","PeriodicalId":120665,"journal":{"name":"2011 IEEE/PES Power Systems Conference and Exposition","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129056709","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

VAr reserve concept applied to a wind power plant VAr储备概念在风电场中的应用

2011 IEEE/PES Power Systems Conference and Exposition Pub Date : 2011-03-20 DOI: 10.1109/PSCE.2011.5772471

Jorge Martinez, P. C. Kjar, P. Rodríguez, R. Teodorescu

{"title":"VAr reserve concept applied to a wind power plant","authors":"Jorge Martinez, P. C. Kjar, P. Rodríguez, R. Teodorescu","doi":"10.1109/PSCE.2011.5772471","DOIUrl":"https://doi.org/10.1109/PSCE.2011.5772471","url":null,"abstract":"Larger percentages of wind power penetration translate into more demanding requirements from the grid codes; for example voltage support at the point of connection has been introduced recently by several grid codes from around the world, making it important to analyze this control when applied to wind power plants. This paper proposes two different VAr reserve control strategies for a wind power plant. The amount of dynamic VAr available most of the operation time, makes the wind power plant (WPP) a good candidate to include a VAr reserve management system. Two different ways of implementing a VAr management system are proposed and analyzed. Such a reactive power reserve may be provided by the wind power plant since the amount of reactive power installed for most active power working points exceeds the demand required by the grid operator. Basically, this overrated reactive power capacity is a consequence of sizing wind turbine facilities for maximum active power level. The reactive power losses, due to active power transportation inside the plant (normally two transformers), and P-Q wind turbine characteristics define the P-Q reserve chart. By utilizing the intrinsic overrated reactive power capacity, additional devices, such as for example SVCs and STATCOMs, can be avoided in other locations of the grid.","PeriodicalId":120665,"journal":{"name":"2011 IEEE/PES Power Systems Conference and Exposition","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124233193","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: 4

Uncertainty quantification in state estimation using the probabilistic collocation method 概率搭配法在状态估计中的不确定性量化

2011 IEEE/PES Power Systems Conference and Exposition Pub Date : 2011-03-20 DOI: 10.1109/PSCE.2011.5772599

Guang Lin, N. Zhou, T. Ferryman, F. Tuffner

引用次数: 16

Optimal power flow via quadratic power flow 通过二次潮流优化潮流

2011 IEEE/PES Power Systems Conference and Exposition Pub Date : 2011-03-20 DOI: 10.1109/PSCE.2011.5772563

Ye Tao, A. Meliopoulos

引用次数: 15