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# IEEE Transactions on Power Systems

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Displaying Results 1 - 25 of 73

Publication Year: 2008, Page(s):C1 - 258
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• ### IEEE Transactions on Power Systems publication information

Publication Year: 2008, Page(s): C2
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• ### A Variable Partitioning Strategy for the Multirate Method in Power Systems

Publication Year: 2008, Page(s):259 - 266
Cited by:  Papers (9)
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An application of the multirate method to differential and algebraic equations (DAEs) is discussed in this paper. Based on the specific formulation of the power systems algebraic equations, an effective algebraic variable partitioning strategy is developed and implemented. The application of the partitioning strategy to an example power system provides validation of the proposed partitioning strat... View full abstract»

• ### A Statistical Approach for Interval Forecasting of the Electricity Price

Publication Year: 2008, Page(s):267 - 276
Cited by:  Papers (75)
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Electricity price forecasting is a difficult yet essential task for market participants in a deregulated electricity market. Rather than forecasting the value, market participants are sometimes more interested in forecasting the prediction interval of the electricity price. Forecasting the prediction interval is essential for estimating the uncertainty involved in the price and thus is highly usef... View full abstract»

• ### Contingency-Based Zonal Reserve Modeling and Pricing in a Co-Optimized Energy and Reserve Market

Publication Year: 2008, Page(s):277 - 286
Cited by:  Papers (31)
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Ancillary service markets are a very important part of the standard market design and are under development or implementation on a centralized basis in major U.S. electricity markets. This paper presents the market clearing framework for the co-optimized real-time energy-reserve market that has been developed and implemented in the ISO New England (ISO NE). In this co-optimized market clearing mod... View full abstract»

• ### Risk-Based Allocation of Distribution System Maintenance Resources

Publication Year: 2008, Page(s):287 - 295
Cited by:  Papers (16)  |  Patents (2)
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Asset management is an important activity in present day distribution system planning and operation. Utilities are constantly striving to optimize the use of resources available for maintenance while ensuring system reliability is within satisfactory limits. This paper proposes a method to allocate maintenance resources to various distribution system assets. To determine the effects of maintenance... View full abstract»

• ### $m-k$ Robust Observability in State Estimation

Publication Year: 2008, Page(s):296 - 305
Cited by:  Papers (10)
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This paper provides a technique to determine the minimum required measurement set to ensure observability in state estimation even if any meters fail. The technique relies on solving a nonlinear integer programming problem. The proposed procedure is illustrated through a simple example and three case studies based on the IEEE Test Systems. Conclusions are finally drawn. View full abstract»

• ### Stochastic Security for Operations Planning With Significant Wind Power Generation

Publication Year: 2008, Page(s):306 - 316
Cited by:  Papers (326)
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In their attempt to cut down on greenhouse gas emissions from electricity generation, several countries are committed to install wind power generation up to and beyond the 10%-20% penetration mark. However, the large-scale integration of wind power represents a challenge for power system operations planning because wind power 1) cannot be dispatched in the classical sense; and 2) its output varies... View full abstract»

• ### Cournot Equilibrium Calculation in Power Networks: An Optimization Approach With Price Response Computation

Publication Year: 2008, Page(s):317 - 326
Cited by:  Papers (21)
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Since deregulated power markets are very often oligopolistic ones, efficient models that are able to describe strategic behavior of firms must be developed. In particular, transmission constraints can easily increase the opportunities of market players to exercise market power. This paper presents a model that describes the firms strategic interaction, based on Nash-Cournot equilibrium, when the p... View full abstract»

• ### Models for Quantifying the Economic Benefits of Distributed Generation

Publication Year: 2008, Page(s):327 - 335
Cited by:  Papers (83)
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We examine some of the most important economic benefits brought about by distributed generation technologies to the distribution utility and the power system. Models are developed that allow the quantification of those benefits in economic terms. In some cases, industry regulators or utilities charge connection fees to the owners of distributed generators, even if they are saving the local utility... View full abstract»

• ### Power System Risk Assessment Using a Hybrid Method of Fuzzy Set and Monte Carlo Simulation

Publication Year: 2008, Page(s):336 - 343
Cited by:  Papers (39)
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This paper presents fuzzy-probabilistic modeling techniques for system component outage parameters and load curves. The fuzzy membership functions of system component outage parameters are developed using statistical records, whereas the system load is modeled using a combined fuzzy and probabilistic representation. Based on the fuzzy-probabilistic models, a hybrid method of fuzzy set and Monte Ca... View full abstract»

• ### Economic Consequences of Alternative Solution Methods for Centralized Unit Commitment in Day-Ahead Electricity Markets

Publication Year: 2008, Page(s):344 - 352
Cited by:  Papers (43)
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Many wholesale electricity markets call on the independent system operator (ISO) to determine day-ahead schedules for generators based on a centralized unit commitment. Up until recently, the Lagrangian relaxation (LR) algorithm was the only practical means of solving an ISO-scale unit commitment problem, and it was the solution technique used by most ISOs. Johnson et al. [1] demonst... View full abstract»

• ### The Measurement Outage Table and State Estimation

Publication Year: 2008, Page(s):353 - 360
Cited by:  Papers (16)
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State estimation uses measurements to obtain important power system operating information ("states"). This paper uses a tabular representation to quantify the effects of measurement failure (i.e., sensor failure or measurement communications failure). The concept of a measurement outage table is introduced to evaluate the state estimator performance under measurement failure conditions. The concep... View full abstract»

• ### Electricity Markets Cleared by Merit Order—Part I: Finding the Market Outcomes Supported by Pure Strategy Nash Equilibria

Publication Year: 2008, Page(s):361 - 371
Cited by:  Papers (21)
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In an electricity market cleared by a merit-order economic dispatch we first identify the necessary conditions for the market outcomes supported by pure strategy Nash equilibria (NE) to exist when generating companies (Gencos) game through their incremental cost offers or supply functions. A Genco may own any number of units, each offering to generate power through an incremental cost curve or sup... View full abstract»

• ### Electricity Markets Cleared by Merit Order—Part II: Strategic Offers and Market Power

Publication Year: 2008, Page(s):372 - 379
Cited by:  Papers (14)
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In an electricity market cleared by a merit-order economic dispatch we make use of the mixed-integer linear programming (MILP) scheme derived in Part I to find the market outcomes supported by a pure strategy Nash equilibria (NE). From these NE, we identify offer strategies in terms of gaming or not gaming that best meet the risk/benefit expectations of the participating Gencos. To do this, a numb... View full abstract»

• ### Continuous-Wavelet Transform for Fault Location in Distribution Power Networks: Definition of Mother Wavelets Inferred From Fault Originated Transients

Publication Year: 2008, Page(s):380 - 388
Cited by:  Papers (85)  |  Patents (1)
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The paper presents a fault location procedure for distribution networks based on the wavelet analysis of the fault-generated traveling waves. In particular, the proposed procedure implements the continuous wavelet analysis applied to the voltage waveforms recorded during the fault in correspondence of a network bus. In order to improve the wavelet analysis, an algorithm is proposed to build specif... View full abstract»

• ### When Supply Meets Demand: The Case of Hourly Spot Electricity Prices

Publication Year: 2008, Page(s):389 - 398
Cited by:  Papers (29)
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We use a supply-demand framework to model the hourly day-ahead price of electricity (the spot price) based on publicly available information. With the model we can forecast the level and probability of a spike in the spot price defined as the spot price above a certain threshold. Several European countries have recently started publishing day-ahead forecasts of the available supply. This paper sho... View full abstract»

• ### Peak Load Management in Electrolytic Process Industries

Publication Year: 2008, Page(s):399 - 405
Cited by:  Papers (56)
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Electrolytic process, employed for manufacturing basic chemicals like caustic soda and chlorine, is highly energy intensive. Due to escalating costs of fossil fuels and capacity addition, the electricity cost has been increasing for the last few decades. Electricity intensive industries find it very difficult to cope up with higher electricity charges particularly with time-of-use (TOU) tariffs im... View full abstract»

• ### Severe Multiple Contingency Screening in Electric Power Systems

Publication Year: 2008, Page(s):406 - 417
Cited by:  Papers (54)
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We propose a computationally efficient approach to detect severe multiple contingencies. We pose a contingency analysis problem using a nonlinear optimization framework, which enables us to detect the fewest possible transmission line outages resulting in a system failure of specified severity, and to identify the most severe system failure caused by removing a specified number of transmission lin... View full abstract»

• ### Effects of Load Forecast Uncertainty on Bulk Electric System Reliability Evaluation

Publication Year: 2008, Page(s):418 - 425
Cited by:  Papers (42)
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Load forecast uncertainty is an important factor in long-range system planning and has been shown to have a significant impact on the calculated reliability indices in generating capacity studies. In general, a higher capacity reserve is required to satisfy a future uncertainty load than to serve a known load, at a specified level of reliability. Load forecast considerations are also important in ... View full abstract»

• ### Power System “Economic Alarms”

Publication Year: 2008, Page(s):426 - 433
Cited by:  Papers (6)
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Power system alarms are used as advice to system operators relating to problematic operating conditions. In this paper, conventional alarms and alarm processing as well as the electrical signals that produce those alarms are revisited with a view of incorporating signals that relate to marketing of electrical energy (e.g., locational marginal prices, and forward market positions). The augmented al... View full abstract»

• ### Computing Large-Scale System Eigenvalues Most Sensitive to Parameter Changes, With Applications to Power System Small-Signal Stability

Publication Year: 2008, Page(s):434 - 442
Cited by:  Papers (24)
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This paper describes a new algorithm, named the sensitive pole algorithm, for the automatic computation of the eigenvalues (poles) most sensitive to parameter changes in large-scale system matrices. The effectiveness and robustness of the algorithm in tracing root-locus plots is illustrated by numerical results from the small-signal stability analysis of realistic power system models. The algorith... View full abstract»

• ### Modeling Real-Time Balancing Power Market Prices Using Combined SARIMA and Markov Processes

Publication Year: 2008, Page(s):443 - 450
Cited by:  Papers (37)
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This paper describes modeling of real-time balancing power market prices by using combined seasonal auto regressive integrated moving average (SARIMA) and discrete Markov processes. The combination of such processes allows generation of price series with periods where no demand for balancing power exists. The purpose of the model is simulation of prices to construct scenario trees representing pos... View full abstract»

• ### An Optimal Pricing Scheme in Electricity Markets Considering Voltage Security Cost

Publication Year: 2008, Page(s):451 - 459
Cited by:  Papers (5)
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Optimal pricing in electricity markets has emerged as a multifunctional task for the grid managers as well as a major concern for the electricity providers and users. In this paper an optimal power flow problem is developed to take into account wider dimensions of the task by linking short-term and long-term performances of power systems via security pricing. The emphasis here is on the voltage st... View full abstract»

• ### Stochastic Joint Optimization of Wind Generation and Pumped-Storage Units in an Electricity Market

Publication Year: 2008, Page(s):460 - 468
Cited by:  Papers (254)
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One of the main characteristics of wind power is the inherent variability and unpredictability of the generation source, even in the short-term. To cope with this drawback, hydro pumped-storage units have been proposed in the literature as a good complement to wind generation due to their ability to manage positive and negative energy imbalances over time. This paper investigates the combined opti... View full abstract»

## Aims & Scope

Covers the requirements, planning, analysis, reliability, operation, and economics of electric generating, transmission, and distribution systems for general industrial, commercial, public, and domestic consumption.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Nikos Hatziargyriou
National Technical University of Athens