Pub Date : 2005-11-21DOI: 10.1109/CIGRE.2005.1532737
P. Giesbertz, H. M. de Jong, J.C. van der Lippe
This paper gives a regulatory view on integration of power markets. It describes the regulatory process from national markets, via regional markets towards a single European market. It focuses on the vision of the Dutch regulatory authority (DTe) for integration of the Dutch market with its neighbouring countries
{"title":"A regulatory view on market integration and cross border congestion management","authors":"P. Giesbertz, H. M. de Jong, J.C. van der Lippe","doi":"10.1109/CIGRE.2005.1532737","DOIUrl":"https://doi.org/10.1109/CIGRE.2005.1532737","url":null,"abstract":"This paper gives a regulatory view on integration of power markets. It describes the regulatory process from national markets, via regional markets towards a single European market. It focuses on the vision of the Dutch regulatory authority (DTe) for integration of the Dutch market with its neighbouring countries","PeriodicalId":414346,"journal":{"name":"International Symposium CIGRE/IEEE PES, 2005.","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131200985","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 : 2005-11-21DOI: 10.1109/CIGRE.2005.1532763
K. Purchała, E. Haesen, L. Meeus, R. Belmans
In this paper the authors discuss the feasibility of a zonal UCTE network model for congestion management. Zonal network model aggregates all nodes within a control zone and substitutes it by one equivalent node; individual cross-border lines are substituted by equivalent one link per border. This model allows derivation of power transfer distribution factors PTDF matrix that could model the interaction between zonal power injections and cross-border flows, and therefore allow for the implementation of flow-based congestion management models
{"title":"Zonal network model of European interconnected electricity network","authors":"K. Purchała, E. Haesen, L. Meeus, R. Belmans","doi":"10.1109/CIGRE.2005.1532763","DOIUrl":"https://doi.org/10.1109/CIGRE.2005.1532763","url":null,"abstract":"In this paper the authors discuss the feasibility of a zonal UCTE network model for congestion management. Zonal network model aggregates all nodes within a control zone and substitutes it by one equivalent node; individual cross-border lines are substituted by equivalent one link per border. This model allows derivation of power transfer distribution factors PTDF matrix that could model the interaction between zonal power injections and cross-border flows, and therefore allow for the implementation of flow-based congestion management models","PeriodicalId":414346,"journal":{"name":"International Symposium CIGRE/IEEE PES, 2005.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122398442","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 : 2005-11-21DOI: 10.1109/CIGRE.2005.1532735
N. Wakuta, R. Hara, T. Oyama, K. Okada, I. Kurihara
This paper quantitatively evaluated the performance and characteristics of three kinds of congestion relieving technique (TLR, ranking method and CC method) from the viewpoint of social welfare and congestion charge. The results confirmed that the CC method attains comparatively high social welfare as well as economic fairness in both the simple three-bus system and the IEEJ EAST 10-machine system. Administrative relieving methods might achieve congestion relief with higher social welfare than CC, however, the economic impacts imposed on market participant are unequal. That is, it is difficult to secure economic fairness by administrative methods. Furthermore, numerical studies revealed a negative correlation between total congestion costs and social welfare
本文从社会福利和拥堵收费的角度，定量评价了三种拥堵缓解技术(TLR法、排序法和CC法)的性能和特点。结果表明，CC法在简单三母线系统和IEEJ EAST 10机系统中均具有较高的社会福利和经济公平性。行政救济方式可能比行政救济方式获得更高的社会福利，但对市场参与者的经济影响是不平等的。也就是说，很难通过行政手段来确保经济公平。此外，数值研究揭示了总拥堵成本与社会福利之间的负相关关系
{"title":"Economical assessment of transmission congestion relieving technique for bilateral electricity transaction","authors":"N. Wakuta, R. Hara, T. Oyama, K. Okada, I. Kurihara","doi":"10.1109/CIGRE.2005.1532735","DOIUrl":"https://doi.org/10.1109/CIGRE.2005.1532735","url":null,"abstract":"This paper quantitatively evaluated the performance and characteristics of three kinds of congestion relieving technique (TLR, ranking method and CC method) from the viewpoint of social welfare and congestion charge. The results confirmed that the CC method attains comparatively high social welfare as well as economic fairness in both the simple three-bus system and the IEEJ EAST 10-machine system. Administrative relieving methods might achieve congestion relief with higher social welfare than CC, however, the economic impacts imposed on market participant are unequal. That is, it is difficult to secure economic fairness by administrative methods. Furthermore, numerical studies revealed a negative correlation between total congestion costs and social welfare","PeriodicalId":414346,"journal":{"name":"International Symposium CIGRE/IEEE PES, 2005.","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116472859","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 : 2005-11-21DOI: 10.1109/CIGRE.2005.1532736
E. Dialynas, D. Michos, D. J. Papakammenos
The paper describes the main concepts and features of an efficient and improved computational method that was developed for conducting reliability assessment studies of interconnected power systems that may also contain jointly owned generating units operating in a market environment. It is a method based on the Monte-Carlo sequential simulation approach and can analyze systems with any given configuration and operational features. The operational behavior of the interconnected systems, interconnection lines and jointly owned generating units are simulated efficiently so that a more accurate reliability assessment is achieved. An extended set of appropriate reliability and operational indices is calculated for each system, the interconnection facilities and each jointly owned generating unit. Reliability indices can also be calculated for each load-point of interest belonging to any system. All these indices can be used to measure the changes obtained due to the operation of jointly owned generating units and can help in determining the possible advantages and disadvantages of their operation. Finally, very important indices are calculated concerning the operation of power systems in a market environment that show the additional information being gained. The analysis of a typical power system based on the IEEE-RTS is also included for various case studies representing certain operating and design features that can be applied
{"title":"Reliability and cost analysis of interconnected power systems with jointly owned generating units operating in a market environment","authors":"E. Dialynas, D. Michos, D. J. Papakammenos","doi":"10.1109/CIGRE.2005.1532736","DOIUrl":"https://doi.org/10.1109/CIGRE.2005.1532736","url":null,"abstract":"The paper describes the main concepts and features of an efficient and improved computational method that was developed for conducting reliability assessment studies of interconnected power systems that may also contain jointly owned generating units operating in a market environment. It is a method based on the Monte-Carlo sequential simulation approach and can analyze systems with any given configuration and operational features. The operational behavior of the interconnected systems, interconnection lines and jointly owned generating units are simulated efficiently so that a more accurate reliability assessment is achieved. An extended set of appropriate reliability and operational indices is calculated for each system, the interconnection facilities and each jointly owned generating unit. Reliability indices can also be calculated for each load-point of interest belonging to any system. All these indices can be used to measure the changes obtained due to the operation of jointly owned generating units and can help in determining the possible advantages and disadvantages of their operation. Finally, very important indices are calculated concerning the operation of power systems in a market environment that show the additional information being gained. The analysis of a typical power system based on the IEEE-RTS is also included for various case studies representing certain operating and design features that can be applied","PeriodicalId":414346,"journal":{"name":"International Symposium CIGRE/IEEE PES, 2005.","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128208990","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 : 2005-11-21DOI: 10.1109/CIGRE.2005.1532745
P.M.C. Torres, R. Pestana
In the context of European electricity market liberalization, each producer and consumer aims at no trade restrictions. Power flows become higher and more dynamic while significant increase in congestion arises. In the past, the localization of generation was very stable, so the physical flows were easier to predict, the amount of electric changes was lower and the physical flows forecast uncertainty was smaller than the remaining transfer capacity. Nowadays, power flows nature has undergone major changes due to the increase of short term trading of electricity but also due to the increase of distributed generation. In this work, two of the main methods for resolving transmission grid interconnection congestions are investigated, regarding the operational planning phase: cross-border coordinated redispatching and market splitting. The study is then particularized to the future Iberian electricity market by means of system real data, i.e., real Iberian network topology and generation bids
{"title":"Congestion management methodologies: iberian electricity transmission grid","authors":"P.M.C. Torres, R. Pestana","doi":"10.1109/CIGRE.2005.1532745","DOIUrl":"https://doi.org/10.1109/CIGRE.2005.1532745","url":null,"abstract":"In the context of European electricity market liberalization, each producer and consumer aims at no trade restrictions. Power flows become higher and more dynamic while significant increase in congestion arises. In the past, the localization of generation was very stable, so the physical flows were easier to predict, the amount of electric changes was lower and the physical flows forecast uncertainty was smaller than the remaining transfer capacity. Nowadays, power flows nature has undergone major changes due to the increase of short term trading of electricity but also due to the increase of distributed generation. In this work, two of the main methods for resolving transmission grid interconnection congestions are investigated, regarding the operational planning phase: cross-border coordinated redispatching and market splitting. The study is then particularized to the future Iberian electricity market by means of system real data, i.e., real Iberian network topology and generation bids","PeriodicalId":414346,"journal":{"name":"International Symposium CIGRE/IEEE PES, 2005.","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127565100","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 : 2005-11-21DOI: 10.1109/CIGRE.2005.1532755
J. Brosda, E. Handschin
Congestion management situations may occur between different control areas. The TSO of one control area does not have the detailed network data of the neighboring networks. An augmented Lagrange decomposition optimization is used in this paper where each TSO optimizes his own network with respect to possible network congestions. A central coordination with a small data exchange optimizes the overall system
{"title":"Corrective congestion management based on hierarchical optimization","authors":"J. Brosda, E. Handschin","doi":"10.1109/CIGRE.2005.1532755","DOIUrl":"https://doi.org/10.1109/CIGRE.2005.1532755","url":null,"abstract":"Congestion management situations may occur between different control areas. The TSO of one control area does not have the detailed network data of the neighboring networks. An augmented Lagrange decomposition optimization is used in this paper where each TSO optimizes his own network with respect to possible network congestions. A central coordination with a small data exchange optimizes the overall system","PeriodicalId":414346,"journal":{"name":"International Symposium CIGRE/IEEE PES, 2005.","volume":"186 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124929480","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 : 2005-11-21DOI: 10.1109/CIGRE.2005.1532751
P. Jintagosonwit, P. Jintakosonwit, N. Wattanapongsakorn
This paper proposed a technique to optimize the total costs of distributed control center (DCC) planning in electrical distribution system, which consists of outage costs (from the point of view of both customers and utility providers), traveling cost from each DCC to the associate unmanned client substations, and DCC room renovation. This is performed by effectively searching for appropriate locations of DCCs and their unmanned substations. Although the up-to-date statistic data is used, it is effective to reanalyze and decide the new DCC locations as long as the benefit of changing is suitable. In this research, a genetic algorithm, which is a heuristic optimization technique, is applied and able to provide very cost-effective results. The GA is a promising technique for large-size problem solving whereas traditional optimization approaches such as integer programming and linear/non-linear programming techniques are not applicable
{"title":"Optimization of distributed control center locations on electrical distribution system","authors":"P. Jintagosonwit, P. Jintakosonwit, N. Wattanapongsakorn","doi":"10.1109/CIGRE.2005.1532751","DOIUrl":"https://doi.org/10.1109/CIGRE.2005.1532751","url":null,"abstract":"This paper proposed a technique to optimize the total costs of distributed control center (DCC) planning in electrical distribution system, which consists of outage costs (from the point of view of both customers and utility providers), traveling cost from each DCC to the associate unmanned client substations, and DCC room renovation. This is performed by effectively searching for appropriate locations of DCCs and their unmanned substations. Although the up-to-date statistic data is used, it is effective to reanalyze and decide the new DCC locations as long as the benefit of changing is suitable. In this research, a genetic algorithm, which is a heuristic optimization technique, is applied and able to provide very cost-effective results. The GA is a promising technique for large-size problem solving whereas traditional optimization approaches such as integer programming and linear/non-linear programming techniques are not applicable","PeriodicalId":414346,"journal":{"name":"International Symposium CIGRE/IEEE PES, 2005.","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125033417","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 : 2005-11-21DOI: 10.1109/CIGRE.2005.1532760
O. Gjerde, Klas Karlsson, U. Moller, F. Pedersen, J. Uusitalo
The purpose of the paper is to describe the common Nordic congestion management scheme, and the evaluations done in a Nordel project: "rules for congestion management, evaluation of capacity and possibilities for increase counter-trade". The paper describes shortly the different methods for congestion management. These can be grouped into methods for capacity allocation and capacity alleviation. In Europe explicit and implicit auctions are the favoured methods for congestion management. The present methods for congestion management in the Nordic countries are presented. Currently congestions are managed mainly by using two methods in combination, market splitting and counter-trade
{"title":"Congestion management in the nordic countries, present solutions and evaluation of possible developments","authors":"O. Gjerde, Klas Karlsson, U. Moller, F. Pedersen, J. Uusitalo","doi":"10.1109/CIGRE.2005.1532760","DOIUrl":"https://doi.org/10.1109/CIGRE.2005.1532760","url":null,"abstract":"The purpose of the paper is to describe the common Nordic congestion management scheme, and the evaluations done in a Nordel project: \"rules for congestion management, evaluation of capacity and possibilities for increase counter-trade\". The paper describes shortly the different methods for congestion management. These can be grouped into methods for capacity allocation and capacity alleviation. In Europe explicit and implicit auctions are the favoured methods for congestion management. The present methods for congestion management in the Nordic countries are presented. Currently congestions are managed mainly by using two methods in combination, market splitting and counter-trade","PeriodicalId":414346,"journal":{"name":"International Symposium CIGRE/IEEE PES, 2005.","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122037781","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 : 2005-11-21DOI: 10.1109/CIGRE.2005.1532731
C. Yuen, Qianjin Liu, Jiuping Pan
This paper aims at evaluating the financial benefits brought about by congestion relief measures under deregulated environment. Two representative congestion mechanisms is investigated: one taking into account transmission constraints and one not. The first mechanism presented is a typical example of market settlement mechanism taking fully into account power transmission constraints, locational marginal pricing (LMP), which is widely adopted by various regional markets in the USA and some other countries in the world. The second mechanism presented, is a contrasting pricing mechanism that employs a "congestion uplift" which is an additional premium that all consumers should pay on top of the system marginal price. This pricing mechanism is widely used in some European countries, e.g. England and Spain. These two pricing mechanisms result in different quantity of congestion charges
{"title":"Financial impacts of congestion relief measures under different congestion management schemes","authors":"C. Yuen, Qianjin Liu, Jiuping Pan","doi":"10.1109/CIGRE.2005.1532731","DOIUrl":"https://doi.org/10.1109/CIGRE.2005.1532731","url":null,"abstract":"This paper aims at evaluating the financial benefits brought about by congestion relief measures under deregulated environment. Two representative congestion mechanisms is investigated: one taking into account transmission constraints and one not. The first mechanism presented is a typical example of market settlement mechanism taking fully into account power transmission constraints, locational marginal pricing (LMP), which is widely adopted by various regional markets in the USA and some other countries in the world. The second mechanism presented, is a contrasting pricing mechanism that employs a \"congestion uplift\" which is an additional premium that all consumers should pay on top of the system marginal price. This pricing mechanism is widely used in some European countries, e.g. England and Spain. These two pricing mechanisms result in different quantity of congestion charges","PeriodicalId":414346,"journal":{"name":"International Symposium CIGRE/IEEE PES, 2005.","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115937753","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 : 2005-11-21DOI: 10.1109/CIGRE.2005.1532732
K. Uhlen, L. Warland, O. S. Grande
Alternative methodologies have been proposed where power flow calculations are included, and the main purpose of this paper is to present a simulation model which can be used to assess alternative methods for congestion management. The paper describes a simulation model where the flow based market coupling method is implemented and demonstrated. This method can be seen as a compromise between nodal pricing and market splitting (area pricing), where the criterion for congestion management is minimization of the socio-economic congestion cost. The main principles for the proposed model are described, and case studies are performed on a generic system model in order to highlight the main characteristics of the method, and to summarise the main benefits and challenges that remain for a practical implementation of the flow based market coupling method. The case studies show that the method has the potential to solve the congestion management problem in a way that is optimal from a socio-economic point of view. The total costs of congestions are minimized, and the maximum differences in area prices are normally reduced. As a consequence the transmission system utilization is improved and the market players' risk referred to area prices is reduced. However, a successful implementation of the method depends heavily on the power flow model that is applied. It is of vital importance that this model is sufficiently accurate and continuously updated to predict the actual power flows on the main cross-border transmission corridors
{"title":"Model for area price determination and congestion management in joint power markets","authors":"K. Uhlen, L. Warland, O. S. Grande","doi":"10.1109/CIGRE.2005.1532732","DOIUrl":"https://doi.org/10.1109/CIGRE.2005.1532732","url":null,"abstract":"Alternative methodologies have been proposed where power flow calculations are included, and the main purpose of this paper is to present a simulation model which can be used to assess alternative methods for congestion management. The paper describes a simulation model where the flow based market coupling method is implemented and demonstrated. This method can be seen as a compromise between nodal pricing and market splitting (area pricing), where the criterion for congestion management is minimization of the socio-economic congestion cost. The main principles for the proposed model are described, and case studies are performed on a generic system model in order to highlight the main characteristics of the method, and to summarise the main benefits and challenges that remain for a practical implementation of the flow based market coupling method. The case studies show that the method has the potential to solve the congestion management problem in a way that is optimal from a socio-economic point of view. The total costs of congestions are minimized, and the maximum differences in area prices are normally reduced. As a consequence the transmission system utilization is improved and the market players' risk referred to area prices is reduced. However, a successful implementation of the method depends heavily on the power flow model that is applied. It is of vital importance that this model is sufficiently accurate and continuously updated to predict the actual power flows on the main cross-border transmission corridors","PeriodicalId":414346,"journal":{"name":"International Symposium CIGRE/IEEE PES, 2005.","volume":"541 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117045620","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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