Pub Date : 2002-08-07DOI: 10.1109/PESW.2002.985177
R. Morrison
The application of probabilistic methods to harmonic distortion commenced in the late 60s and early 70s with simple analysis based on instantaneous values of current. Some shortcomings were noted in relation to the early methods of analysis: there was a lack of knowledge concerning the actual distributions for all but a limited number of loads; and the interrelationship between the different harmonic currents for a single load was recognised as complex. The methods used to evaluate the harmonic levels must account for the nonstationary nature. To model the nonstationary effects account must be taken of the variation of the harmonic current with time.
{"title":"Probabilistic analysis of harmonic currents in power systems","authors":"R. Morrison","doi":"10.1109/PESW.2002.985177","DOIUrl":"https://doi.org/10.1109/PESW.2002.985177","url":null,"abstract":"The application of probabilistic methods to harmonic distortion commenced in the late 60s and early 70s with simple analysis based on instantaneous values of current. Some shortcomings were noted in relation to the early methods of analysis: there was a lack of knowledge concerning the actual distributions for all but a limited number of loads; and the interrelationship between the different harmonic currents for a single load was recognised as complex. The methods used to evaluate the harmonic levels must account for the nonstationary nature. To model the nonstationary effects account must be taken of the variation of the harmonic current with time.","PeriodicalId":198760,"journal":{"name":"2002 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.02CH37309)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122016773","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 : 2002-08-07DOI: 10.1109/PESW.2002.984952
M. Gahagan
Summary form only given, as follows. No matter the number of regional transmission organisations (RTOs) in the USA (unless the number is one), seams between RTOs will be present and must be managed. Seam management consists of a full spectrum of items that include such mundane things as the basic exchange of operating type data to more policy related things such as common business practices. Seams management between RTOs should be cooperative in nature with a legal/regulatory backstop.
{"title":"RTO seams management [electricity supply industry]","authors":"M. Gahagan","doi":"10.1109/PESW.2002.984952","DOIUrl":"https://doi.org/10.1109/PESW.2002.984952","url":null,"abstract":"Summary form only given, as follows. No matter the number of regional transmission organisations (RTOs) in the USA (unless the number is one), seams between RTOs will be present and must be managed. Seam management consists of a full spectrum of items that include such mundane things as the basic exchange of operating type data to more policy related things such as common business practices. Seams management between RTOs should be cooperative in nature with a legal/regulatory backstop.","PeriodicalId":198760,"journal":{"name":"2002 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.02CH37309)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117335162","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 : 2002-08-07DOI: 10.1109/PESW.2002.985155
D. Lawrence
In 2001, the New York Independent System Operator implemented two programs aimed at increasing the opportunities for interruptible load and standby generation to participate in the New York wholesale electricity market. One program allows demand side resources to reduce load or start up standby generators when an operating reserves deficiency exists. The second program permits demand side resources to bid load reduction into the day-ahead energy market and receive compensation for actual load reduction provided. The paper discusses the performance of both programs during the summer of 2001 and outlines future efforts in this area.
{"title":"2001 performance of New York ISO demand response programs","authors":"D. Lawrence","doi":"10.1109/PESW.2002.985155","DOIUrl":"https://doi.org/10.1109/PESW.2002.985155","url":null,"abstract":"In 2001, the New York Independent System Operator implemented two programs aimed at increasing the opportunities for interruptible load and standby generation to participate in the New York wholesale electricity market. One program allows demand side resources to reduce load or start up standby generators when an operating reserves deficiency exists. The second program permits demand side resources to bid load reduction into the day-ahead energy market and receive compensation for actual load reduction provided. The paper discusses the performance of both programs during the summer of 2001 and outlines future efforts in this area.","PeriodicalId":198760,"journal":{"name":"2002 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.02CH37309)","volume":"226 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121467432","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 : 2002-08-07DOI: 10.1109/PESW.2002.985096
H. Awad, J. Svensson
The voltage source converter, connected in series with the grid, as a static series compensator (SSC) is suited to protect sensitive loads against incoming supply disturbances such as voltage dips. Dynamic performance of the SSC is very important since it is essential to start compensation for voltage sags without a sensible delay. This paper proposes a double-vector control algorithm to be implemented to the SSC to improve its dynamic performance. The proposed algorithm incorporates both current and voltage controllers with an inner current control loop and outer voltage control loop. The validity of the proposed algorithm has been demonstrated through a PSCAD/EMTDC simulation, when the grid is subjected to a symmetrical three-phase voltage dip. Simulation results have proved that the proposed algorithm is able to improve the transient response of the SSC, compared to traditional control concepts, such as concepts related to phasors of the sequence components and RMS calculations.
{"title":"Double vector control for series connected voltage source converters","authors":"H. Awad, J. Svensson","doi":"10.1109/PESW.2002.985096","DOIUrl":"https://doi.org/10.1109/PESW.2002.985096","url":null,"abstract":"The voltage source converter, connected in series with the grid, as a static series compensator (SSC) is suited to protect sensitive loads against incoming supply disturbances such as voltage dips. Dynamic performance of the SSC is very important since it is essential to start compensation for voltage sags without a sensible delay. This paper proposes a double-vector control algorithm to be implemented to the SSC to improve its dynamic performance. The proposed algorithm incorporates both current and voltage controllers with an inner current control loop and outer voltage control loop. The validity of the proposed algorithm has been demonstrated through a PSCAD/EMTDC simulation, when the grid is subjected to a symmetrical three-phase voltage dip. Simulation results have proved that the proposed algorithm is able to improve the transient response of the SSC, compared to traditional control concepts, such as concepts related to phasors of the sequence components and RMS calculations.","PeriodicalId":198760,"journal":{"name":"2002 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.02CH37309)","volume":"47 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120917280","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 : 2002-08-07DOI: 10.1109/PESW.2002.985071
S. Mauser
This panel presentation describes the work undertaken by the EPRI Control Center API (CCAPI) Common Graphics Exchange Breakout Group. This group is generating guidelines for utility graphics exchange standards. The Common Graphics Exchange Breakout Group has identified graphics exchanges that will be required within the electric utility and has defined the characteristics required for the exchange of energy management systems (EMS) graphics exchanges. This presentation provides the status of the work being conducted in this breakout group.
{"title":"Status of EPRI CCAPI common graphics exchange","authors":"S. Mauser","doi":"10.1109/PESW.2002.985071","DOIUrl":"https://doi.org/10.1109/PESW.2002.985071","url":null,"abstract":"This panel presentation describes the work undertaken by the EPRI Control Center API (CCAPI) Common Graphics Exchange Breakout Group. This group is generating guidelines for utility graphics exchange standards. The Common Graphics Exchange Breakout Group has identified graphics exchanges that will be required within the electric utility and has defined the characteristics required for the exchange of energy management systems (EMS) graphics exchanges. This presentation provides the status of the work being conducted in this breakout group.","PeriodicalId":198760,"journal":{"name":"2002 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.02CH37309)","volume":"374 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115969104","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 : 2002-08-07DOI: 10.1109/PESW.2002.984974
D. Lindsay
Southwire Company is operating the world's first high temperature superconducting (HTS) cable at its corporate headquarters in Carrollton, Georgia. The HTS system consists of three 30 m long single phase cables rated at 12.4 kV, 1250 A and is cooled by pressurized liquid nitrogen. The cable provides power to Southwire's two main manufacturing plants and the machinery division. The cable was installed and energized on Jan. 6, 2000 for on-line testing and operation. The cables have provided 100% of the customer load for over 9500 hours, including over 2500 hours of unattended operation and is continuing. The HTS cable has proven reliable; it has not caused any power failure since its start up.
{"title":"Operating experience of the Southwire high temperature superconducting cable installation","authors":"D. Lindsay","doi":"10.1109/PESW.2002.984974","DOIUrl":"https://doi.org/10.1109/PESW.2002.984974","url":null,"abstract":"Southwire Company is operating the world's first high temperature superconducting (HTS) cable at its corporate headquarters in Carrollton, Georgia. The HTS system consists of three 30 m long single phase cables rated at 12.4 kV, 1250 A and is cooled by pressurized liquid nitrogen. The cable provides power to Southwire's two main manufacturing plants and the machinery division. The cable was installed and energized on Jan. 6, 2000 for on-line testing and operation. The cables have provided 100% of the customer load for over 9500 hours, including over 2500 hours of unattended operation and is continuing. The HTS cable has proven reliable; it has not caused any power failure since its start up.","PeriodicalId":198760,"journal":{"name":"2002 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.02CH37309)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116301170","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 : 2002-08-07DOI: 10.1109/PESW.2002.985220
A. Ozdemir, J. Lim, C. Singh
Post outage MW line flows and voltage magnitude calculations are one of the most important steps of power system static security analysis. Most of the methods use linear models for the sake of simplicity. However, linear models may suffer from high errors especially for reactive power flows. This paper presents a new method to minimize the errors resulting from the linear system model implementation. The proposed method uses a bounded nonlinear optimization, which can be considered as the corrector of the linearized feedforward calculations.
{"title":"Line outage simulation by bounded network solution","authors":"A. Ozdemir, J. Lim, C. Singh","doi":"10.1109/PESW.2002.985220","DOIUrl":"https://doi.org/10.1109/PESW.2002.985220","url":null,"abstract":"Post outage MW line flows and voltage magnitude calculations are one of the most important steps of power system static security analysis. Most of the methods use linear models for the sake of simplicity. However, linear models may suffer from high errors especially for reactive power flows. This paper presents a new method to minimize the errors resulting from the linear system model implementation. The proposed method uses a bounded nonlinear optimization, which can be considered as the corrector of the linearized feedforward calculations.","PeriodicalId":198760,"journal":{"name":"2002 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.02CH37309)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115084488","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 : 2002-08-07DOI: 10.1109/PESW.2002.985008
N. Hatziargyriou, G. Contaxis, M. Matos, J. Lopes, G. Kariniotakis, D. Mayer, J. Halliday, G. Dutton, P. Dokopoulos, A. Bakirtzis, J. Stefanakis, A. Gigantidou, P. O'Donnell, D. Mccoy, M. Fernandes, J.M.S. Cotrim, A. Figueira
Penetration of renewable energy sources in isolated and weakly interconnected power systems can be increased in a secure and reliable way, if advanced control tools are available to the operators of these systems. In this paper the functions of MORE CARE are described. This is an advanced control software system aiming to optimize the operation of isolated and weakly interconnected systems by increasing the share of wind energy and other renewable forms, taking into account pumped hydro storage facilities and providing advanced on-line security functions, both in preventive and corrective mode. The main features of the control system comprise advanced software modules for load and wind power forecasting, unit commitment and economic dispatch of the conventional and renewable units and on-line security assessment capabilities integrated in a friendly man-machine environment. In this way, penetration of renewable energy sources in isolated systems can be increased in a secure and reliable way. Pilot installations of advanced control functions are foreseen on the islands of Crete, Ireland and Madeira.
{"title":"Energy management and control of island power systems with increased penetration from renewable sources","authors":"N. Hatziargyriou, G. Contaxis, M. Matos, J. Lopes, G. Kariniotakis, D. Mayer, J. Halliday, G. Dutton, P. Dokopoulos, A. Bakirtzis, J. Stefanakis, A. Gigantidou, P. O'Donnell, D. Mccoy, M. Fernandes, J.M.S. Cotrim, A. Figueira","doi":"10.1109/PESW.2002.985008","DOIUrl":"https://doi.org/10.1109/PESW.2002.985008","url":null,"abstract":"Penetration of renewable energy sources in isolated and weakly interconnected power systems can be increased in a secure and reliable way, if advanced control tools are available to the operators of these systems. In this paper the functions of MORE CARE are described. This is an advanced control software system aiming to optimize the operation of isolated and weakly interconnected systems by increasing the share of wind energy and other renewable forms, taking into account pumped hydro storage facilities and providing advanced on-line security functions, both in preventive and corrective mode. The main features of the control system comprise advanced software modules for load and wind power forecasting, unit commitment and economic dispatch of the conventional and renewable units and on-line security assessment capabilities integrated in a friendly man-machine environment. In this way, penetration of renewable energy sources in isolated systems can be increased in a secure and reliable way. Pilot installations of advanced control functions are foreseen on the islands of Crete, Ireland and Madeira.","PeriodicalId":198760,"journal":{"name":"2002 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.02CH37309)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116937136","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 : 2002-08-07DOI: 10.1109/PESW.2002.984937
Z. Yu
The paper concentrates on the analysis of semivariance (SV) as a market risk measure that is incorporated in mean-semivariance (MSV) portfolios. The advantage of SV over variance as a risk measure is analyzed. In addition, the relationship of the SV with the lower partial movements is discussed. Despite its problems, the MSV provides a more logical measure of risk than the mean-variance method. A risk model is proposed in the paper as a basis for risk assessment in short-term energy markets. Transaction costs and other practical constraints are also included in the model. The first part of the joint paper conducts an extensive literature search and analysis of the semivariance risk measure and other related downside risk measures.
{"title":"Spatial energy market risk analysis. I. An introduction to downside risk measures","authors":"Z. Yu","doi":"10.1109/PESW.2002.984937","DOIUrl":"https://doi.org/10.1109/PESW.2002.984937","url":null,"abstract":"The paper concentrates on the analysis of semivariance (SV) as a market risk measure that is incorporated in mean-semivariance (MSV) portfolios. The advantage of SV over variance as a risk measure is analyzed. In addition, the relationship of the SV with the lower partial movements is discussed. Despite its problems, the MSV provides a more logical measure of risk than the mean-variance method. A risk model is proposed in the paper as a basis for risk assessment in short-term energy markets. Transaction costs and other practical constraints are also included in the model. The first part of the joint paper conducts an extensive literature search and analysis of the semivariance risk measure and other related downside risk measures.","PeriodicalId":198760,"journal":{"name":"2002 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.02CH37309)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115276848","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 : 2002-08-07DOI: 10.1109/PESW.2002.985230
S. Mccusker, Benjamin F. Hobbs, Yuandong Ji
Summary form only given, as follows. Regulatory changes and advances in distributed resources (DR) technology have lead utilities to consider DRs as alternatives to central station generation and T&D investments. This paper presents a comprehensive planning and production simulation model that simultaneously evaluates central and local investments to determine the optimal mix for long-term expansion. The model can also be viewed as optimizing DRs while simulating a perfectly competitive wholesale power market. The model is a mixed integer linear stochastic program that enforces Kirchhoff's current and voltage laws, and is solved using generalized Benders decomposition (GBD). The formulation includes multiarea probabilistic production costing as a subproblem. DRs and local distribution reinforcements are modeled as integer variables, while transmission and central generation options are represented as continuous variables. The model is applied to a ten-year multi-area example that suggests that DRs are able to modify capacity additions and production costs by changing demand and power flows.
{"title":"Distributed utility planning using probabilistic production costing and generalized Benders decomposition","authors":"S. Mccusker, Benjamin F. Hobbs, Yuandong Ji","doi":"10.1109/PESW.2002.985230","DOIUrl":"https://doi.org/10.1109/PESW.2002.985230","url":null,"abstract":"Summary form only given, as follows. Regulatory changes and advances in distributed resources (DR) technology have lead utilities to consider DRs as alternatives to central station generation and T&D investments. This paper presents a comprehensive planning and production simulation model that simultaneously evaluates central and local investments to determine the optimal mix for long-term expansion. The model can also be viewed as optimizing DRs while simulating a perfectly competitive wholesale power market. The model is a mixed integer linear stochastic program that enforces Kirchhoff's current and voltage laws, and is solved using generalized Benders decomposition (GBD). The formulation includes multiarea probabilistic production costing as a subproblem. DRs and local distribution reinforcements are modeled as integer variables, while transmission and central generation options are represented as continuous variables. The model is applied to a ten-year multi-area example that suggests that DRs are able to modify capacity additions and production costs by changing demand and power flows.","PeriodicalId":198760,"journal":{"name":"2002 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.02CH37309)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115305993","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：