Pub Date : 2006-05-21DOI: 10.1109/TDC.2006.1668629
C. Romualdo-Torres, R. Velazquez-Sanchz, J. Loza-Rodriguez
This paper describes monthly field results obtained for several electrodes installed and tested at an experimental field with a high resistivity soil feature. Several chemical backfills were also used in order to determine which of them could improve the grounding connection and then compared to a driven rod without any backfill. It is also shown the main variation of the grounding resistance for every kind of electrode which includes its comparison among them as well the determination of the lowest grounding resistance of each electrode. Main backfills' application is on grounding power substations as well as grounding transmission lines, where lightning strokes may cause many problems, mainly on high incidence areas, where as a consequence, overvoltages at the top of the towers are raised up to high values, increasing the risk of failures and causing backflashovers on the line insulation because of the presence of high grounding resistance connections
{"title":"The Application of Bacfills for Improving the Grounding Resistance of Power Systems","authors":"C. Romualdo-Torres, R. Velazquez-Sanchz, J. Loza-Rodriguez","doi":"10.1109/TDC.2006.1668629","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668629","url":null,"abstract":"This paper describes monthly field results obtained for several electrodes installed and tested at an experimental field with a high resistivity soil feature. Several chemical backfills were also used in order to determine which of them could improve the grounding connection and then compared to a driven rod without any backfill. It is also shown the main variation of the grounding resistance for every kind of electrode which includes its comparison among them as well the determination of the lowest grounding resistance of each electrode. Main backfills' application is on grounding power substations as well as grounding transmission lines, where lightning strokes may cause many problems, mainly on high incidence areas, where as a consequence, overvoltages at the top of the towers are raised up to high values, increasing the risk of failures and causing backflashovers on the line insulation because of the presence of high grounding resistance connections","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":"130674677","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.2006.1668463
J. Smith, R. Dugan
Many challenges face the distribution engineer when customers request to interconnect wind generation to the distribution grid. Distributed generation within itself presents certain challenges, but combined with wind generation's widely varying technologies, generator output variability and nondispatchability, distributed wind generation presents rather unique challenges. This panel summary provides various modeling methods for performing distribution system analysis of distributed wind generation
{"title":"Generator Modeling for Distributed Wind Interconnection Analysis","authors":"J. Smith, R. Dugan","doi":"10.1109/TDC.2006.1668463","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668463","url":null,"abstract":"Many challenges face the distribution engineer when customers request to interconnect wind generation to the distribution grid. Distributed generation within itself presents certain challenges, but combined with wind generation's widely varying technologies, generator output variability and nondispatchability, distributed wind generation presents rather unique challenges. This panel summary provides various modeling methods for performing distribution system analysis of distributed wind generation","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"29 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":"134646551","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.2006.1668717
S. Martina
Summary form only given. Aqualectra generates and supplies electricity and water for the Island of Curacao. It was formed in 1999 through the integration of KAE, an electricity and water production company, and KODELA, an electricity and water distribution company. One of the first activities of Aqualectra after its formation in 1999 was the development of a twenty year infrastructure investment plan called "Utility Plan 2020." This plan identified the desired future state of electricity and water infrastructure in Curacao in twenty years, and presents an investment roadmap to ensure that this future state can be achieved. An important part of "Utility Plan 2020" relates to quality systems their ability to result in superior project evaluation and selection. Presently, Aqualectra uses a combination of quality approaches including Malcolm Baldridge, Balanced Scorecard, and European Foundation for Quality Management. Each of these emphasizes fact-based management, and quantifiable performance measures, and consistent processes. This presentation discusses how Aqualectra uses quality management concepts in their project evaluation and selection process, and also discusses present efforts of Aqualectra to achieve further operational improvements in this area
{"title":"Project Evaluation and Selection at Aqualectra","authors":"S. Martina","doi":"10.1109/TDC.2006.1668717","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668717","url":null,"abstract":"Summary form only given. Aqualectra generates and supplies electricity and water for the Island of Curacao. It was formed in 1999 through the integration of KAE, an electricity and water production company, and KODELA, an electricity and water distribution company. One of the first activities of Aqualectra after its formation in 1999 was the development of a twenty year infrastructure investment plan called \"Utility Plan 2020.\" This plan identified the desired future state of electricity and water infrastructure in Curacao in twenty years, and presents an investment roadmap to ensure that this future state can be achieved. An important part of \"Utility Plan 2020\" relates to quality systems their ability to result in superior project evaluation and selection. Presently, Aqualectra uses a combination of quality approaches including Malcolm Baldridge, Balanced Scorecard, and European Foundation for Quality Management. Each of these emphasizes fact-based management, and quantifiable performance measures, and consistent processes. This presentation discusses how Aqualectra uses quality management concepts in their project evaluation and selection process, and also discusses present efforts of Aqualectra to achieve further operational improvements in this area","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"40 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":"114514060","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.2006.1668664
Seung Ryul Lee, J. Kim, Jae-young Yoon
The recovery time of developing SFCL (superconducting fault current limiter) has an uncertainty. In general, the recovery time is estimated at 1 sec and more, even though the progress of SFCL technology is considered. However, auto-reclosing time of circuit breaker is 0.3 sec in Korean power system. It is impossible to apply only one SFCL to power system because the recovery time is over the reclosing time of protection system. This study proposes two new SFCL systems for power system application. The proposed systems consider auto reclosing action for the protection in practical power system and consist of tow parallel SFCLs
{"title":"A Study on SFCL Systems for Korean Power System Application","authors":"Seung Ryul Lee, J. Kim, Jae-young Yoon","doi":"10.1109/TDC.2006.1668664","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668664","url":null,"abstract":"The recovery time of developing SFCL (superconducting fault current limiter) has an uncertainty. In general, the recovery time is estimated at 1 sec and more, even though the progress of SFCL technology is considered. However, auto-reclosing time of circuit breaker is 0.3 sec in Korean power system. It is impossible to apply only one SFCL to power system because the recovery time is over the reclosing time of protection system. This study proposes two new SFCL systems for power system application. The proposed systems consider auto reclosing action for the protection in practical power system and consist of tow parallel SFCLs","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"42 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":"128533273","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.2006.1668632
J. Marciano, B. St-Pierre
When modernizing strategic substations, control engineering design must factor in substation-specific reliability, maintainability and operability criteria while ensuring continuity of supply. Commissioned in the early 1970s, Hydro-Quebec's 735/315/120-kV Duvernay substation comprises 13 buildings specialized by voltage level of function. Some 80 km of cables carrying sequential event recorder (SER), measurement, alarm and control data had seriously deteriorated as a result of numerous spring floods. Furthermore, the conventional control system was outdated. The facility thus required a major overhaul. In 2001, Hydro-Quebec began the various engineering phases for modernizing Duvernay substation. Several technological alternatives were considered based on such factors as facility reliability and maintainability. Besides explaining the reasons behind the technology selected, this paper deals with implementation issues and solutions chosen to smoothly upgrade the substation from conventional to digital technology
{"title":"Control System Modernization and Issues with Integrating New Technology at a Major Strategic Hydro-Quebec Substation","authors":"J. Marciano, B. St-Pierre","doi":"10.1109/TDC.2006.1668632","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668632","url":null,"abstract":"When modernizing strategic substations, control engineering design must factor in substation-specific reliability, maintainability and operability criteria while ensuring continuity of supply. Commissioned in the early 1970s, Hydro-Quebec's 735/315/120-kV Duvernay substation comprises 13 buildings specialized by voltage level of function. Some 80 km of cables carrying sequential event recorder (SER), measurement, alarm and control data had seriously deteriorated as a result of numerous spring floods. Furthermore, the conventional control system was outdated. The facility thus required a major overhaul. In 2001, Hydro-Quebec began the various engineering phases for modernizing Duvernay substation. Several technological alternatives were considered based on such factors as facility reliability and maintainability. Besides explaining the reasons behind the technology selected, this paper deals with implementation issues and solutions chosen to smoothly upgrade the substation from conventional to digital technology","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"5 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":"133492266","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.2006.1668628
C. Korasli
An alternative fall-of-potential method is presented to measure on-line and in situ resistance of ground electrode systems in a low-voltage distribution network. It provides simultaneous resistance measurements of both ground electrode system of a substation and ground electrode of a premise. The method does not require usage of any auxiliary electrode, but employs two existing ground electrodes in the distribution network. The method has the advantage that it uses moderately high currents than the classical fall-of-potential method, and results are independent of test electrode positions. The method is especially useful in urbanized districts where it is difficult to apply the classical fall-of-potential method. Also, a capacitive potential probe was successfully tested in place of the current electrode used in the fall-of-potential method
{"title":"Ground Resistance Measurement with Alternative Fall-of-Potential Method","authors":"C. Korasli","doi":"10.1109/TDC.2006.1668628","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668628","url":null,"abstract":"An alternative fall-of-potential method is presented to measure on-line and in situ resistance of ground electrode systems in a low-voltage distribution network. It provides simultaneous resistance measurements of both ground electrode system of a substation and ground electrode of a premise. The method does not require usage of any auxiliary electrode, but employs two existing ground electrodes in the distribution network. The method has the advantage that it uses moderately high currents than the classical fall-of-potential method, and results are independent of test electrode positions. The method is especially useful in urbanized districts where it is difficult to apply the classical fall-of-potential method. Also, a capacitive potential probe was successfully tested in place of the current electrode used in the fall-of-potential method","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"14 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":"125827890","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.2006.1668673
T. Pham, Y. Bésanger, C. Andrieu, N. Hadjsaid, M. Fontela, B. Enacheanu
This paper presents a new effective restoration procedure designed for the electrical power system (EPS) with large scale of dispersed generation (DG) penetration. The "deep build-together" strategy is proposed to simultaneously consider this rebuilding by transmission and distribution networks, thereby, to serve the maximum of customers in a minimum of time. The restoration problem has to be now formulated as a multilevel, multi-objective optimization problem with constraints. The proposed method is designed with consideration to the network in the coming year which requires the introduction of new information and communication technologies (ICTs) components. Some simulations, using Eurostag software and a part of an IEEE New England 39 buses power system including a French type distribution network, with different cases (with a large scale of DG contributing or not in restoration process), will be shown to illustrate the DG ability in restoration process. The benefits of employing DG are also quantified
{"title":"A New Restoration Process in Power Systems with Large Scale of Dispersed Generation","authors":"T. Pham, Y. Bésanger, C. Andrieu, N. Hadjsaid, M. Fontela, B. Enacheanu","doi":"10.1109/TDC.2006.1668673","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668673","url":null,"abstract":"This paper presents a new effective restoration procedure designed for the electrical power system (EPS) with large scale of dispersed generation (DG) penetration. The \"deep build-together\" strategy is proposed to simultaneously consider this rebuilding by transmission and distribution networks, thereby, to serve the maximum of customers in a minimum of time. The restoration problem has to be now formulated as a multilevel, multi-objective optimization problem with constraints. The proposed method is designed with consideration to the network in the coming year which requires the introduction of new information and communication technologies (ICTs) components. Some simulations, using Eurostag software and a part of an IEEE New England 39 buses power system including a French type distribution network, with different cases (with a large scale of DG contributing or not in restoration process), will be shown to illustrate the DG ability in restoration process. The benefits of employing DG are also quantified","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"8 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":"123632854","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.2006.1668513
G. Simard, V. Lavoie, D. Chartrand
This paper describes Hydro-Quebec's vision for the automation of its distribution network. After a brief discussion of Hydro-Quebec Distribution's experiences with distribution automation, the document outlines the different studies made to formulate a vision and a development program for distribution automation. The paper takes into account the latest technical studies on distribution automation such as the CEATI roadmap and the EPRI'S ADA report. It also extends the vision of distribution automation beyond the simple remote control of major equipment such as circuit breakers, load break switches and capacitors on the distribution grid. Finally, it presents some details on the next steps that Hydro-Quebec Distribution is now taking towards a general distribution automation in its system
{"title":"Hydro-Quebec's vision of the Distribution Automation","authors":"G. Simard, V. Lavoie, D. Chartrand","doi":"10.1109/TDC.2006.1668513","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668513","url":null,"abstract":"This paper describes Hydro-Quebec's vision for the automation of its distribution network. After a brief discussion of Hydro-Quebec Distribution's experiences with distribution automation, the document outlines the different studies made to formulate a vision and a development program for distribution automation. The paper takes into account the latest technical studies on distribution automation such as the CEATI roadmap and the EPRI'S ADA report. It also extends the vision of distribution automation beyond the simple remote control of major equipment such as circuit breakers, load break switches and capacitors on the distribution grid. Finally, it presents some details on the next steps that Hydro-Quebec Distribution is now taking towards a general distribution automation in its system","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"48 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":"124713091","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.2006.1668630
J. Lopez-Roldan, J. Enns, P. Guillaume, C. Devriendt
The current trend in reducing the erection time of substations has driven to the use of pre-mounted assemblies for quick installation in all kind of forms. In such cases the substation components have to be transported mounted in their operation position. Mobile substations are the clearest example. Mobile substations present specific characteristics which make the substation designer to be confronted with problems not affecting to conventional substations (AIS or GIS). The substation equipment must be fixed to a semi-trailer considering the space limitation, insulation distances and not only static but dynamic loads due to transport. The equipment must be fitted in a way to allow a fast installation requiring minimum work. Regular substation components with its support structures have natural frequencies in the normal range of transport motion and then dynamic loads due to vibrations have to be considered. The dynamic forces that occur during transport are of long duration and metal-fatigue has to be taken into account. This paper intends to give an overview of the singular engineering of mobile substations and the special considerations for the application of those substations in the North-American electric network
{"title":"Mobile Substations: Application, Engineering and Structural Dynamics","authors":"J. Lopez-Roldan, J. Enns, P. Guillaume, C. Devriendt","doi":"10.1109/TDC.2006.1668630","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668630","url":null,"abstract":"The current trend in reducing the erection time of substations has driven to the use of pre-mounted assemblies for quick installation in all kind of forms. In such cases the substation components have to be transported mounted in their operation position. Mobile substations are the clearest example. Mobile substations present specific characteristics which make the substation designer to be confronted with problems not affecting to conventional substations (AIS or GIS). The substation equipment must be fixed to a semi-trailer considering the space limitation, insulation distances and not only static but dynamic loads due to transport. The equipment must be fitted in a way to allow a fast installation requiring minimum work. Regular substation components with its support structures have natural frequencies in the normal range of transport motion and then dynamic loads due to vibrations have to be considered. The dynamic forces that occur during transport are of long duration and metal-fatigue has to be taken into account. This paper intends to give an overview of the singular engineering of mobile substations and the special considerations for the application of those substations in the North-American electric network","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"8 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":"126195435","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.2006.1668585
X. Yuan, S. Cheng
A digital simulation model for a hybrid three terminal HVDC system is developed. In the hybrid three terminal HVDC system, both a VSC and a CSC are used. Based on the developed HVDC system, a control scheme is proposed, in which a DC constant current control is used for the CSC type rectifier, a constant extinction angle control is used for the CSC type inverter, and a DC constant current control for the VSC type inverter. The performance of the HVDC system is studied by simulation under the following conditions: system startup, system normal operations, and system faults in the DC links as well as the AC systems. Simulation results show that the control scheme proposed is effective for the hybrid multi-terminal HVDC (MTDC) system. The simulation results also show that the DC breaker is indispensable to effectively control and protect the hybrid MTDC system
{"title":"Simulation Study for a Hybrid Multi-terminal HVDC System","authors":"X. Yuan, S. Cheng","doi":"10.1109/TDC.2006.1668585","DOIUrl":"https://doi.org/10.1109/TDC.2006.1668585","url":null,"abstract":"A digital simulation model for a hybrid three terminal HVDC system is developed. In the hybrid three terminal HVDC system, both a VSC and a CSC are used. Based on the developed HVDC system, a control scheme is proposed, in which a DC constant current control is used for the CSC type rectifier, a constant extinction angle control is used for the CSC type inverter, and a DC constant current control for the VSC type inverter. The performance of the HVDC system is studied by simulation under the following conditions: system startup, system normal operations, and system faults in the DC links as well as the AC systems. Simulation results show that the control scheme proposed is effective for the hybrid multi-terminal HVDC (MTDC) system. The simulation results also show that the DC breaker is indispensable to effectively control and protect the hybrid MTDC system","PeriodicalId":123024,"journal":{"name":"2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition","volume":"14 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":"129595239","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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