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2007 IEEE Lausanne Power Tech最新文献

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An Activity-based Interruption Cost Model for Households to be Used in Cost-Benefit Analysis 基于作业的家庭中断成本模型在成本效益分析中的应用
2007 IEEE Lausanne Power Tech Pub Date : 2007-07-01 DOI: 10.1109/PCT.2007.4538556
K. Alvehag, L. Soder
{"title":"An Activity-based Interruption Cost Model for Households to be Used in Cost-Benefit Analysis","authors":"K. Alvehag, L. Soder","doi":"10.1109/PCT.2007.4538556","DOIUrl":"https://doi.org/10.1109/PCT.2007.4538556","url":null,"abstract":"This paper develops an interruption cost model for households that, as well as outage duration uses activity patterns, outdoor temperature and daylight to describe the impact of different electrical power outages. For households the interruption costs usually measure the inconvenience associated with interrupted activities and uncomfortable indoor temperature due to the outage. Further, the model also captures the large variations in interruption costs for identical outages among households. The model is applied to a test system, and using a Monte Carlo technique the total interruption cost is studied. The results imply that both the time of occurrence and the distributed nature of residential interruption costs have a significant impact on ECOST.","PeriodicalId":356805,"journal":{"name":"2007 IEEE Lausanne Power Tech","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116475632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Profit-Based Short-Term Hydro Scheduling considering Head-Dependent Power Generation 考虑水头依赖发电的短期水力调度
2007 IEEE Lausanne Power Tech Pub Date : 2007-07-01 DOI: 10.1109/PCT.2007.4538514
S. Mariano, J. Catalão, V. Mendes, L. Ferreira
{"title":"Profit-Based Short-Term Hydro Scheduling considering Head-Dependent Power Generation","authors":"S. Mariano, J. Catalão, V. Mendes, L. Ferreira","doi":"10.1109/PCT.2007.4538514","DOIUrl":"https://doi.org/10.1109/PCT.2007.4538514","url":null,"abstract":"This paper is on the problem of short-term hydro scheduling, particularly concerning head-dependent reservoirs under competitive environment. We propose a method, based on nonlinear programming, for optimizing power generation efficiency. The proposed method considers not only that the hydroelectric power generation is a function of the water discharge and of the head, but also that the maximum power generation is head-dependent. Numerical results based on a realistic cascaded hydro system illustrate the proficiency of the proposed method.","PeriodicalId":356805,"journal":{"name":"2007 IEEE Lausanne Power Tech","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117172521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 40
Valuing Flexibility of DG Investments in Transmission Expansion Planning 输电网扩容规划中DG投资的灵活性评价
2007 IEEE Lausanne Power Tech Pub Date : 2007-07-01 DOI: 10.1109/PCT.2007.4538400
Paul Vasquez, F. Olsina
{"title":"Valuing Flexibility of DG Investments in Transmission Expansion Planning","authors":"Paul Vasquez, F. Olsina","doi":"10.1109/PCT.2007.4538400","DOIUrl":"https://doi.org/10.1109/PCT.2007.4538400","url":null,"abstract":"Planning for efficient and well-timed investments in electric transmission systems, whereas properly managing the huge uncertainties involved, is currently a subject of considerable research interest. Retaining strategic flexibility in order to make fast and economic contingent decisions upon unexpected scenarios is a sound strategy for dealing with uncertainty within the transmission expansion problem. In this sense, distributed generation (DG) seems an effective way for adding flexibility to transmission expansion plans. In this article, a new expansion planning approach that properly assesses the option value of deferring expansion investments while flexibility is gained by investing in DG is proposed. In a numerical example, the economic value of the flexibility provided by different real options is compared against economies of scale of a larger, though more irreversible, transmission project obtained by classical stochastic optimization techniques.","PeriodicalId":356805,"journal":{"name":"2007 IEEE Lausanne Power Tech","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123976499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 43
Wind Energy Storages - Possibilities 风能储存-可能性
2007 IEEE Lausanne Power Tech Pub Date : 2007-07-01 DOI: 10.1109/PCT.2007.4538387
E. Spahić, G. Balzer, B. Hellmich, W. Munch
{"title":"Wind Energy Storages - Possibilities","authors":"E. Spahić, G. Balzer, B. Hellmich, W. Munch","doi":"10.1109/PCT.2007.4538387","DOIUrl":"https://doi.org/10.1109/PCT.2007.4538387","url":null,"abstract":"The volatility of wind power can cause large problems for power systems operation. To remedy the disadvantages of wind power generation different storage technologies can be applied. In this paper technical and economical analysis of possible wind energy storages has been made. According to technical parameters the applicable technologies have been selected. Afterwards, for selected storages economical analyses which take into account different scenarios of investment and electricity prices have been made. Obtained results suggested compressed air energy storages, batteries and pump hydro storages as very good solutions for wind energy storage. Due to lack of suitable places in Germany a pump hydro storage solution is less feasible.","PeriodicalId":356805,"journal":{"name":"2007 IEEE Lausanne Power Tech","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125935887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 60
Optimal planning strategy of ancillary services ensuring secure operation of power system 保障电力系统安全运行的辅助业务优化规划策略
2007 IEEE Lausanne Power Tech Pub Date : 2007-07-01 DOI: 10.1109/PCT.2007.4538509
P. Havel, P. Horáček, J. Fantík
{"title":"Optimal planning strategy of ancillary services ensuring secure operation of power system","authors":"P. Havel, P. Horáček, J. Fantík","doi":"10.1109/PCT.2007.4538509","DOIUrl":"https://doi.org/10.1109/PCT.2007.4538509","url":null,"abstract":"This paper presents an overview of a complex approach to optimal planning of ancillary services ensuring reliable power grid balancing in liberalized market conditions that is performed by the transmission system operator. To accomplish this goal analytical computations together with optimizations and Monte-Carlo simulations are used. Attention is also paid to mutual substitutability of ancillary services and its impact on the grid operation and related expenses.","PeriodicalId":356805,"journal":{"name":"2007 IEEE Lausanne Power Tech","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125990291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Economic Assessment of Voltage Sags Based on Quality Engineering Theory 基于质量工程理论的电压跌落经济评价
2007 IEEE Lausanne Power Tech Pub Date : 2007-07-01 DOI: 10.1109/PCT.2007.4538539
Gengyin Li, Ming Zhou, Biao Zhang, Jin Yang
{"title":"Economic Assessment of Voltage Sags Based on Quality Engineering Theory","authors":"Gengyin Li, Ming Zhou, Biao Zhang, Jin Yang","doi":"10.1109/PCT.2007.4538539","DOIUrl":"https://doi.org/10.1109/PCT.2007.4538539","url":null,"abstract":"Voltage sag, one of the modern power quality problems, may cause tremendous economic loss, which needs scientific method to evaluate. This paper proposes an approach using quality loss function and signal-to-noise ratio (SNR) in quality engineering theory to make economic assessment to voltage sag. The inverted normal probability loss function is used to describe losses of single-type sags, where SNR method is applied to integrate different types together. The index of sag-caused loss is proposed, which is an important parameter for PQ evaluation. A five-node 35 kV distribution system is used to verify the proposed approach. The result shows that the proposed method could effectively assess financial losses caused by sags and be a reasonable instruction for PQ evaluation, improvement and pricing.","PeriodicalId":356805,"journal":{"name":"2007 IEEE Lausanne Power Tech","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124730247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Building a Transformer Defects Database for UHF Partial Discharge Diagnostics 超高频局部放电诊断变压器缺陷数据库的建立
2007 IEEE Lausanne Power Tech Pub Date : 2007-07-01 DOI: 10.1109/PCT.2007.4538637
P. Agoris, P. Cichecki, S. Meijer, J. Smit
{"title":"Building a Transformer Defects Database for UHF Partial Discharge Diagnostics","authors":"P. Agoris, P. Cichecki, S. Meijer, J. Smit","doi":"10.1109/PCT.2007.4538637","DOIUrl":"https://doi.org/10.1109/PCT.2007.4538637","url":null,"abstract":"In the case of a defective transformer, when a partial discharge is detected and recorded, critical information can be deduced from its pattern, such as the type of defect, its criticality or even information on the level of degradation of the insulation. This information can help to determine the remaining life of the transformer and thus provide criteria for its maintenance and operation. In this paper different artificial PD patterns will be recorded in the laboratory, representative of specific transformer defects, in order to build a database for comparison purposes when measuring on-line. This can greatly improve the recognition and identification of the defect and thus help take some important life assessment conclusions on the transformer.","PeriodicalId":356805,"journal":{"name":"2007 IEEE Lausanne Power Tech","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129465705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Coordinated synchronism check settings for optimal use of critical transmission network corridors 协调同步检查设置，以优化关键传输网络走廊的使用
2007 IEEE Lausanne Power Tech Pub Date : 2007-07-01 DOI: 10.1109/PCT.2007.4538311
L. Oprea, V. Popescu, W. Sattinger
{"title":"Coordinated synchronism check settings for optimal use of critical transmission network corridors","authors":"L. Oprea, V. Popescu, W. Sattinger","doi":"10.1109/PCT.2007.4538311","DOIUrl":"https://doi.org/10.1109/PCT.2007.4538311","url":null,"abstract":"The paper presents an efficient methodology for establishing synchrocheck relay settings for transmission lines of high power transit corridors, optimized for maximum use of the design capacity without jeopardizing equipment safety. It details the criteria used for limiting the generation units shaft mechanical surges to non-cumulative fatigue values and for keeping the electromagnetic stresses of generators and switching equipment within the withstand ratings. The main recommendation is that synchrocheck relay settings of critical lines shall be based on dynamic simulations of the switching particulars in a large number of relevant system configurations. Typical setting values as often applied in the practice may not be on the safe side, especially for lines in the vicinity of major power plants.","PeriodicalId":356805,"journal":{"name":"2007 IEEE Lausanne Power Tech","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128192346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Frequency Control Features for Increasing DER Penetration in Power System 提高电力系统DER渗透的频率控制特性
2007 IEEE Lausanne Power Tech Pub Date : 2007-07-01 DOI: 10.1109/PCT.2007.4538576
V. Chuvychin, A. Sauhatas, V. Gurov
{"title":"Frequency Control Features for Increasing DER Penetration in Power System","authors":"V. Chuvychin, A. Sauhatas, V. Gurov","doi":"10.1109/PCT.2007.4538576","DOIUrl":"https://doi.org/10.1109/PCT.2007.4538576","url":null,"abstract":"The paper describes problems of power system frequency control during massive penetration of DER. Main problems caused by integration of DER are considered. Model of the Baltic States power system interconnection is developed for a frequency control study. The example of the practical investigation is presented in the paper.","PeriodicalId":356805,"journal":{"name":"2007 IEEE Lausanne Power Tech","volume":"2004 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128291556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
A Comprehensive Approach for Bulk Power System Reliability Assessment 大容量电力系统可靠性评估的综合方法
2007 IEEE Lausanne Power Tech Pub Date : 2007-07-01 DOI: 10.1109/PCT.2007.4538552
Fang Yang, A. Meliopoulos, G. Cokkinides, G. Stefopoulos
{"title":"A Comprehensive Approach for Bulk Power System Reliability Assessment","authors":"Fang Yang, A. Meliopoulos, G. Cokkinides, G. Stefopoulos","doi":"10.1109/PCT.2007.4538552","DOIUrl":"https://doi.org/10.1109/PCT.2007.4538552","url":null,"abstract":"This paper proposes a comprehensive approach for bulk power system reliability assessment. Specifically, a framework of security-constrained adequacy evaluation (SCAE) based on analytical techniques is developed to assess the ability of a bulk power system to supply electric load while satisfying security constraints. This approach encompasses three main steps: (a) critical contingency selection, (b) effects analysis, and (c) reliability index computation. Based on an advanced single-phase quadratized power flow, a state linearization approach is developed to improve contingency selection accuracy, and a non-divergent optimal quadratized power flow (NDOQPF) algorithm is proposed to perform contingency effects analysis realistically and efficiently while assuring the convergence of power flow solution. The NDOQPF algorithm is also capable of solving the RTO/ISO operational model in the deregulated environment. In addition, a breaker-oriented system network model is developed, based on which the SCAE framework can include the effects of protection system hidden failures on bulk power system reliability as well. The comprehensive approach is demonstrated with IEEE reliability test systems.","PeriodicalId":356805,"journal":{"name":"2007 IEEE Lausanne Power Tech","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128601787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 28
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