2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)最新文献_第10页

Stochastic modeling of electric power prices in a multi-market environment 多市场环境下电力价格的随机建模

2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077) Pub Date : 2000-01-23 DOI: 10.1109/PESW.2000.850096

P. Skantze, Marija Ilic, J. Chapman

{"title":"Stochastic modeling of electric power prices in a multi-market environment","authors":"P. Skantze, Marija Ilic, J. Chapman","doi":"10.1109/PESW.2000.850096","DOIUrl":"https://doi.org/10.1109/PESW.2000.850096","url":null,"abstract":"Over the past few years, a number of competitive electric power markets have emerged in the United States. While market structure differs by region, the common denominator has been the high level of price volatility experienced in these markets. As power suppliers, marketers and consumers seek to manage their positions in this volatile environment, understanding the locational spreads in power prices is becoming increasingly important. The paper develops a dynamic model describing the interplay of electricity prices in a multi-market environment. In contrast to most existing price models, it is based on the fundamental interaction of demand and supply processes. We illustrate how delays in the information flow to market participants causes price differentials to occur between markets with unconstrained transmission interfaces. Furthermore we examine how correlation between load processes translates into a correlation between the price processes in a dual-market environment. These results are illustrated in a simulated example. In the context of the new model we examine current state of the art algorithms for valuing locational spread options. The work presented suggests that a single correlation factor may not be sufficient to describe the interplay of prices in a dual-market environment. The model illustrates how the price correlation shifts between two states based on the state of congestion on the system. Possibilities for extensions of current option valuation schemes are discussed.","PeriodicalId":286352,"journal":{"name":"2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131531394","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: 62

A comparative study of inverter- and line-side filtering schemes in the dynamic voltage restorer 动态电压恢复器中逆变滤波与线侧滤波的比较研究

2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077) Pub Date : 2000-01-23 DOI: 10.1109/PESW.2000.847357

S. Choi, B.H. Li, D. Vilathgamuwa

引用次数: 21

Excitation systems-performance specification to meet interconnection requirements 励磁系统-满足互连要求的性能规范

2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077) Pub Date : 2000-01-23 DOI: 10.1109/PESW.2000.850073

A. Murdoch, H. C. Sanderson, R. Lawson

引用次数: 7

Application of PPLP to EHV and UHV class underground and submarine cables PPLP在超高压、特高压级地下及海底电缆中的应用

2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077) Pub Date : 2000-01-23 DOI: 10.1109/PESW.2000.850137

R. Hata, Y. Yoshino, T. Shimizu

引用次数: 7

An algorithm for accurate switching representation in fixed-step simulation of power electronics 电力电子定步长仿真中精确开关表示算法

2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077) Pub Date : 2000-01-23 DOI: 10.1109/PESW.2000.850162

B. De Kelper, L. Dessaint, V. Do, J. Soumagne

{"title":"An algorithm for accurate switching representation in fixed-step simulation of power electronics","authors":"B. De Kelper, L. Dessaint, V. Do, J. Soumagne","doi":"10.1109/PESW.2000.850162","DOIUrl":"https://doi.org/10.1109/PESW.2000.850162","url":null,"abstract":"Fixed-step integration methods are widely used in simulation of large power systems. Unfortunately they have some limitations, especially in the presence of hard nonlinearity as produced by switching of power electronic devices. Switching occurs most frequently between time steps and rarely coincide with them. This introduces an error on the switching instant. Without corrections, this error causes jitter and noncharacteristic harmonics. This article presents a simple yet effective method to achieve a very accurate switching representation in fixed-step simulations of power systems. A piecewise integration is performed and interpolated to the exact switching instant. From that point on, a second integration is performed with the usual fixed step using the final conditions present before the discontinuity as initial conditions. Finally, a second interpolation yields the current step results. The method has given very satisfactory results in various configurations such as HVDC converters, PWM inverters and STATCOM devices. Some of these results are presented and compared with those obtained with a precise simulation software based on variable-step integration methods.","PeriodicalId":286352,"journal":{"name":"2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133641698","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: 13

Prospects for the decentralised control of small-scale power networks with embedded generation 嵌入式发电小型电网分散控制的前景

2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077) Pub Date : 2000-01-23 DOI: 10.1109/PESW.2000.850172

G. Dudgeon, W. Leithead, J. O'Reilly, J. Mcdonald

{"title":"Prospects for the decentralised control of small-scale power networks with embedded generation","authors":"G. Dudgeon, W. Leithead, J. O'Reilly, J. Mcdonald","doi":"10.1109/PESW.2000.850172","DOIUrl":"https://doi.org/10.1109/PESW.2000.850172","url":null,"abstract":"The control of a small-scale power network incorporating four generators is investigated in this paper. The small-signal dynamic characteristics and control system performance are assessed using individual channel analysis and design (ICAD). ICAD is motivated through the need to understand the effect of system interaction on both the control design task and robustness. System interaction on individual transmissions is explicitly considered through the use of multivariable structure functions which, although scalar, encapsulate the multivariable nature of the system. The strength of such an approach is that highly successful single-input single-output classical control techniques such as Nyquist/Bode can be used without loss of multivariable information. For the example network, ICAD enables the design of the individual controllers to be performed independently of one another and determines that the effect of system interaction is not detrimental to network stability. It therefore potentially provides a strong platform for consideration of large-scale networks with embedded generation. Finally, the ICAD network control analysis and design is corroborated by nonlinear dynamic simulation running in PSS/E.","PeriodicalId":286352,"journal":{"name":"2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)","volume":"9 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131805612","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: 17

Coordinated control of multi-machine interacted power system 多机交互电力系统的协调控制

2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077) Pub Date : 2000-01-23 DOI: 10.1109/PESW.2000.850092

Wang Yu-peng, Ma Zhao-Yan, Xiong Zheng-Mei

引用次数: 0

Voltage sag mitigation through distribution system design 通过配电系统设计缓解电压暂降

2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077) Pub Date : 2000-01-23 DOI: 10.1109/PESW.2000.847341

E. Lakervi

引用次数: 3

Simplified expressions for the evaluation of the cyclic ratings of low and medium voltage cables in non sinusoidal conditions 非正弦条件下中、低压电缆循环额定值评定的简化表达式

2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077) Pub Date : 2000-01-23 DOI: 10.1109/PESW.2000.850139

P. Caramia, G. Carpinelli, A. La Vitola, P. Verde

引用次数: 2

Comparison between the high frequency characteristics of transformer interleaved and ordinary disk windings 变压器交错绕组与普通圆盘绕组高频特性的比较

2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077) Pub Date : 2000-01-23 DOI: 10.1109/PESW.2000.847692

O. Moreau, P. Guuinic, R. Dorr, Q. Su

{"title":"Comparison between the high frequency characteristics of transformer interleaved and ordinary disk windings","authors":"O. Moreau, P. Guuinic, R. Dorr, Q. Su","doi":"10.1109/PESW.2000.847692","DOIUrl":"https://doi.org/10.1109/PESW.2000.847692","url":null,"abstract":"Interleaved and ordinary disk windings are widely used in high voltage transformers. Due to the difference in their inter-turn connections, the behaviours of electromagnetic transients in these windings are very different, especially at high frequencies. Although several winding models have been developed in the world for the calculation of impulse voltage distributions along transformer windings, no work has been done to determine the detailed high frequency characteristics. The authors have examined an interleaved and an ordinary disk winding of the same size and structure using a new transformer model and software package developed by Electricite de France. It has been found that for the interleaved winding, there exists a certain frequency range in which the winding behaves as a capacitive ladder network. However, the ordinary disk winding does not show such a frequency range. This result agrees with the previous measurements on several 66 kV to 220 kV power transformers. Comparison has also been made for these two windings in their impulse and sinusoidal voltage distributions. From theoretical analysis, an explanation is given to the difference of high frequency characteristics between interleaved and ordinary disk windings.","PeriodicalId":286352,"journal":{"name":"2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114507075","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