Pub Date : 2006-05-21DOI: 10.1109/TDC.2006.1668500
A. Charette, G. Simard
In order to review the industry practices, CEATI (Canadian Electrical Association Technologies Inc.) asked Hydro-Quebec to survey North American approaches in the stray voltage domain. A summary of the survey's results in terms of consensus as well as divergences of opinion were highlighted. The methods of analysis, the tools used for evaluation, and the corrective actions to control the stray voltage are part of the subject covered. At the time of preparing this paper, only partial results are available. This is why Hydro-Quebec's method, which is a significant representative of the practices, is described within. A final paper is available upon request to the authors
{"title":"Stray Voltage at Farm Site Utilities Practice and Review","authors":"A. Charette, G. Simard","doi":"10.1109/TDC.2006.1668500","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668500","url":null,"abstract":"In order to review the industry practices, CEATI (Canadian Electrical Association Technologies Inc.) asked Hydro-Quebec to survey North American approaches in the stray voltage domain. A summary of the survey's results in terms of consensus as well as divergences of opinion were highlighted. The methods of analysis, the tools used for evaluation, and the corrective actions to control the stray voltage are part of the subject covered. At the time of preparing this paper, only partial results are available. This is why Hydro-Quebec's method, which is a significant representative of the practices, is described within. A final paper is available upon request to the authors","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128417690","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}
Pub Date : 2006-05-21DOI: 10.1109/TDC.2006.1668475
Zhenyu Huang, T. Nguyen, D. Kosterev, R. Guttromson
Hybrid dynamic simulation, with its capability of injecting external signals into dynamic simulation, opens the traditional dynamic simulation loop for interaction with actual field measurements. This simulation technique enables rigorous comparison between simulation results and actual measurements and model validation of individual power system components within a small subsystem. This paper uses a real example of generator model validation to illustrate the procedure and validity of the component model validation methodology using hybrid dynamic simulation. Initial model calibration has also been carried out to show how model validation results would be used to improve component models
{"title":"Model Validation of Power System Components Using Hybrid Dynamic Simulation","authors":"Zhenyu Huang, T. Nguyen, D. Kosterev, R. Guttromson","doi":"10.1109/TDC.2006.1668475","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668475","url":null,"abstract":"Hybrid dynamic simulation, with its capability of injecting external signals into dynamic simulation, opens the traditional dynamic simulation loop for interaction with actual field measurements. This simulation technique enables rigorous comparison between simulation results and actual measurements and model validation of individual power system components within a small subsystem. This paper uses a real example of generator model validation to illustrate the procedure and validity of the component model validation methodology using hybrid dynamic simulation. Initial model calibration has also been carried out to show how model validation results would be used to improve component models","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114171381","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}
Pub Date : 2006-05-21DOI: 10.1109/TDC.2006.1668587
J. Horak
This paper reviews some measurements of power quality in regard to interruptions and sags: the ITIC (new CBEMA) curves, SEMI F47 standard, and typical lighting and motor contactor sag withstand. It reviews common interruption measurement indices, including such measurements as SAIDI, SAIFI, and CAIDI. It reviews short-term interruption and sag measurements interruption indices such as the MAIFI and SARFI, and the new standards for interruption measurements, IEEE-1366, IEEE-1359, and draft P1564. The difficulty involved in what can be done about transient performance of the power system is addressed. The paper promotes further movement toward improved tracking and measurement of interruption and sag power quality issues, such as the inclusion of this feature in a greater number of common lower cost revenue meters
{"title":"Power Quality: Measurements of Sags and Interruptions","authors":"J. Horak","doi":"10.1109/TDC.2006.1668587","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668587","url":null,"abstract":"This paper reviews some measurements of power quality in regard to interruptions and sags: the ITIC (new CBEMA) curves, SEMI F47 standard, and typical lighting and motor contactor sag withstand. It reviews common interruption measurement indices, including such measurements as SAIDI, SAIFI, and CAIDI. It reviews short-term interruption and sag measurements interruption indices such as the MAIFI and SARFI, and the new standards for interruption measurements, IEEE-1366, IEEE-1359, and draft P1564. The difficulty involved in what can be done about transient performance of the power system is addressed. The paper promotes further movement toward improved tracking and measurement of interruption and sag power quality issues, such as the inclusion of this feature in a greater number of common lower cost revenue meters","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124730487","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}
Pub Date : 2006-05-21DOI: 10.1109/TDC.2006.1668712
E. Toolson, A. Sheffrin
The economic viability of transmission expansion is a function of market prices throughout the impacted region. Various methods have been utilized to simulate market prices. This article summarizes an empirical approach developed by the California Independent System Operators (CAISO) using dynamic bids that change hourly based on system conditions and the relative influence of critical suppliers
{"title":"Impact of Market Prices on the Economic Feasibility of Transmission Expansions","authors":"E. Toolson, A. Sheffrin","doi":"10.1109/TDC.2006.1668712","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668712","url":null,"abstract":"The economic viability of transmission expansion is a function of market prices throughout the impacted region. Various methods have been utilized to simulate market prices. This article summarizes an empirical approach developed by the California Independent System Operators (CAISO) using dynamic bids that change hourly based on system conditions and the relative influence of critical suppliers","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125767446","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}
Pub Date : 2006-05-21DOI: 10.1109/TDC.2006.1668597
Yujia Zhou, R.E. Brown
As underground cables continue to increase in age, most utilities are experiencing an increase in underground cable failures. Since cable replacement programs are expensive, it is important to understand the impact that age and other cable characteristics have on cable failure rates. This paper presents a practical method to model cable failure rates categorized by cable features. It addresses the issue of limited data and makes it possible to predict cable failure trends using the available information in power delivery companies. This paper starts with a discussion of historical data and cable features that affect cable failure rate trends, followed by the description on failure rate modeling process. This method is then applied to a test case based on the data from a large U.S. utility. It is shown cable failure rates tend to increase exponentially with chronological age
{"title":"A Practical Method for Cable Failure Rate Modeling","authors":"Yujia Zhou, R.E. Brown","doi":"10.1109/TDC.2006.1668597","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668597","url":null,"abstract":"As underground cables continue to increase in age, most utilities are experiencing an increase in underground cable failures. Since cable replacement programs are expensive, it is important to understand the impact that age and other cable characteristics have on cable failure rates. This paper presents a practical method to model cable failure rates categorized by cable features. It addresses the issue of limited data and makes it possible to predict cable failure trends using the available information in power delivery companies. This paper starts with a discussion of historical data and cable features that affect cable failure rate trends, followed by the description on failure rate modeling process. This method is then applied to a test case based on the data from a large U.S. utility. It is shown cable failure rates tend to increase exponentially with chronological age","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125924092","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}
Pub Date : 2006-05-21DOI: 10.1109/TDC.2006.1668575
M. Takasaki
UPFC is expected to be the best device in enhancing power transfer capability because it can provide efficient controllability of power flow with a comparably small inverter capacity. System control devices are required to secure or improve transfer capability in the circumstances that the network power flow is subject to change with uncertainty due to increased power transactions in a power market. To clarify the effect of UPFC in such situation, it is needed to evaluate the robustness regarding system stabilization when various network flow patterns appear in a power system. This paper quantitatively presents point to point stability ATC increments with UPFC for various power transfer patterns of a system model. The results prove that the combined installation of UPFC and generator PSS can be a robust measure to enhance stability ATC for every power transfer patterns
{"title":"Power Transfer Capability Enhancement with UPFC under Circumstances of Uncertain Power Flow Pattern","authors":"M. Takasaki","doi":"10.1109/TDC.2006.1668575","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668575","url":null,"abstract":"UPFC is expected to be the best device in enhancing power transfer capability because it can provide efficient controllability of power flow with a comparably small inverter capacity. System control devices are required to secure or improve transfer capability in the circumstances that the network power flow is subject to change with uncertainty due to increased power transactions in a power market. To clarify the effect of UPFC in such situation, it is needed to evaluate the robustness regarding system stabilization when various network flow patterns appear in a power system. This paper quantitatively presents point to point stability ATC increments with UPFC for various power transfer patterns of a system model. The results prove that the combined installation of UPFC and generator PSS can be a robust measure to enhance stability ATC for every power transfer patterns","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124843724","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}
Pub Date : 2006-05-21DOI: 10.1109/TDC.2006.1668445
C. Mcshane, J. Corkran, K. Rapp, J. Luksich
Since the early 1980s, Cooper Power Systems has been actively involved in exploring and developing ester-based dielectric fluids. Introduced in 1984, our first commercialized ester was a synthetic polyol ester, developed primarily as an environmentally acceptable Askarel substitute. Although its technical performance is very good, the cost is prohibitive for most applications. The desirable properties of the polyol ester spurred exploration into other, more cost-effective, ester chemistries. This led to the evaluation of a natural (vegetable oil) ester dielectric coolant having many of the same performance advantages of synthetic esters, but much more economical. The major disadvantages of the natural esters are their inherent susceptibility to oxidation and higher pour point. We undertook a massive natural ester research and development program beginning in the early 1990s. Significant improvement low temperature flow was achieved. Oxidation inhibitors together with proper method-of-use overcome the oxidation stability issues. In many ways the natural esters perform better than the less-flammable fluids they replace, and offer significant advantages for applications where naphthenic mineral oils are traditionally applied. Although initially developed for distribution transformers, application in medium and large power transformers is becoming more common. This paper summarizes our laboratory and field experience
{"title":"Natural Ester Dielectric Fluid Development","authors":"C. Mcshane, J. Corkran, K. Rapp, J. Luksich","doi":"10.1109/TDC.2006.1668445","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668445","url":null,"abstract":"Since the early 1980s, Cooper Power Systems has been actively involved in exploring and developing ester-based dielectric fluids. Introduced in 1984, our first commercialized ester was a synthetic polyol ester, developed primarily as an environmentally acceptable Askarel substitute. Although its technical performance is very good, the cost is prohibitive for most applications. The desirable properties of the polyol ester spurred exploration into other, more cost-effective, ester chemistries. This led to the evaluation of a natural (vegetable oil) ester dielectric coolant having many of the same performance advantages of synthetic esters, but much more economical. The major disadvantages of the natural esters are their inherent susceptibility to oxidation and higher pour point. We undertook a massive natural ester research and development program beginning in the early 1990s. Significant improvement low temperature flow was achieved. Oxidation inhibitors together with proper method-of-use overcome the oxidation stability issues. In many ways the natural esters perform better than the less-flammable fluids they replace, and offer significant advantages for applications where naphthenic mineral oils are traditionally applied. Although initially developed for distribution transformers, application in medium and large power transformers is becoming more common. This paper summarizes our laboratory and field experience","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131488075","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}
Pub Date : 2006-05-21DOI: 10.1109/TDC.2006.1668607
Lee Jae-Duck, Ryoo HeeSuk, Choi SangBong, Nam Kee Young, Jeong Seong Hwan, Kim Dae Kyeong
Developing fault location system for underground power cable which can detect its fault location exactly require very high speed data acquisition and signal processing capability. We are developing fault location system which is different from conventional fault locator. This fault location system monitor underground power cable by using on-line speed current sensor and if there are an accident, it record its transient signal and calculate fault location by analyzing it. Signals which acquired when power cable fault arise, showed transient characteristics and its frequency band is very high. So, to develop fault location system, we designed special high speed data acquisition and signal processing board. In this thesis, we describe on data acquisition and signal processing H/W design for fault location system on underground power cable
{"title":"H/W Desig for Fault Location System on Underground Power Cable","authors":"Lee Jae-Duck, Ryoo HeeSuk, Choi SangBong, Nam Kee Young, Jeong Seong Hwan, Kim Dae Kyeong","doi":"10.1109/TDC.2006.1668607","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668607","url":null,"abstract":"Developing fault location system for underground power cable which can detect its fault location exactly require very high speed data acquisition and signal processing capability. We are developing fault location system which is different from conventional fault locator. This fault location system monitor underground power cable by using on-line speed current sensor and if there are an accident, it record its transient signal and calculate fault location by analyzing it. Signals which acquired when power cable fault arise, showed transient characteristics and its frequency band is very high. So, to develop fault location system, we designed special high speed data acquisition and signal processing board. In this thesis, we describe on data acquisition and signal processing H/W design for fault location system on underground power cable","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"13 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120865614","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}
Pub Date : 2006-05-21DOI: 10.1109/TDC.2006.1668563
Junhua Luo, Letian Ten, Haigang Zhu
Based on variety of fractal dimension scale and principle of self-similarity, this paper presents a new digital analysis system for partial discharge (PD) signal detecting, recognizing and processing. Application of fractal character calculating, detecting PD pulse signal of XLPE power cable approach very high frequency (VHF) using high-frequency and wide-band electromagnetism coupling is able to restrain noise interfering and pick up PD signal key eigenvalue effectively. The technique for on-line detection of partial discharge in XLPE power cable have been improved in this paper
{"title":"On-line PD Detection in XLPE Power Cable Based on Fractal Theory","authors":"Junhua Luo, Letian Ten, Haigang Zhu","doi":"10.1109/TDC.2006.1668563","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668563","url":null,"abstract":"Based on variety of fractal dimension scale and principle of self-similarity, this paper presents a new digital analysis system for partial discharge (PD) signal detecting, recognizing and processing. Application of fractal character calculating, detecting PD pulse signal of XLPE power cable approach very high frequency (VHF) using high-frequency and wide-band electromagnetism coupling is able to restrain noise interfering and pick up PD signal key eigenvalue effectively. The technique for on-line detection of partial discharge in XLPE power cable have been improved in this paper","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129873295","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}
Pub Date : 2006-05-21DOI: 10.1109/TDC.2006.1668524
C. Hoga, P. Skare
Enabling the interoperability of protection and control devices from different vendors, the international standard for substation communication IEC 61850 was effectively completed in 2004. Written for the needs of substations worldwide, the standard attracted interests of utilities and industrial users in many countries even while it was at the preparation stage. The first orders were received by manufacturers in 2003 for implementation in real substations of voltages up to 110 kV. This paper describes several key projects on the installation of IEC 61850 equipment in Germany and Switzerland, highlighting Winznauschachen, the world's first operating substation compliant with the standard. It also depicts the experience and the benefits gained by the manufacturers, the utilities and industrial users when putting the standard into practice
{"title":"IEC 61850 Projects in Germany and Switzerland","authors":"C. Hoga, P. Skare","doi":"10.1109/TDC.2006.1668524","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668524","url":null,"abstract":"Enabling the interoperability of protection and control devices from different vendors, the international standard for substation communication IEC 61850 was effectively completed in 2004. Written for the needs of substations worldwide, the standard attracted interests of utilities and industrial users in many countries even while it was at the preparation stage. The first orders were received by manufacturers in 2003 for implementation in real substations of voltages up to 110 kV. This paper describes several key projects on the installation of IEC 61850 equipment in Germany and Switzerland, highlighting Winznauschachen, the world's first operating substation compliant with the standard. It also depicts the experience and the benefits gained by the manufacturers, the utilities and industrial users when putting the standard into practice","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132436938","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}
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