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The following topics are dealt with: climate change and extreme weather; electronic control of electric machines; breaker reignition transients; wind machines; smart distribution; energy development and power generation; plug-in hybrid vehicles; smart grids; power system dynamic performance; power system operations; power system relaying; surge protective devices; distributed and renewable generation;...
Defining and evaluating operational equilibriums in real-time market, constrained by operation risks and economical biddings, is in the center of market operation and its enhancement. For example, in the two-settlement market design, reliability unit commitment is an important stage to bridge day-ahead market with Real-time system operation, which commits additional units to cover forecasted load...
A multi-scale power system modeling methodology for the integrative simulation of electromagnetic and electromechanical transients is introduced, implemented and validated. It makes use of frequency-adaptive simulation of transients (FAST) in which the shift frequency appears as a new parameter in addition to the time step size. For fast electromagnetic transients, tracking of instantaneous waveforms...
Merchant transmission projects (MTPs) are primarily market solutions for importing inexpensive power when this energy is available. As a market driven solution, full recovery of the investment is not guaranteed. In general, the recovery is based on transmission service charges and the value of incremental financial transmission rights (FTRs) created by the project. Since FTRs are valuable only when...
Summary form only given: In power market studies, the forecast of locational marginal price (LMP) relies on the load forecasting results from the viewpoint of planning. It is well known that short-term load forecasting results always carry certain degree of errors mainly due to the random nature of the load. At the same time, LMP step changes occur at critical load levels (CLLs). Therefore, it is...
Summary form only given: After a power system blackout, system restoration is a critical task for the dispatchers. With the stringent requirements for faster and more efficient system restoration, an objective transmission restoration path selection procedure, including the option to check constraints, may be more responsive in handling unexpected system changes and in providing directed guidance...
Summary form only given. The paper will discuss the details and the mission of a DOE-funded wind energy consortium for the promotion of research, education, and workforce development.
Summary form only given. Alabama Power Company has an ongoing program to improve the voltage profile of the 115 kV transmission system. This program includes the installation of a large number of distribution line capacitors. Initially, the distribution line capacitors were installed in the traditional fashion as fixed installations. However, with the wide spread deployment of Distribution Automation,...
This article discusses the impact that communication will have on the electric power grid in the future. Recent efforts, such as UCA 2.0 and IEC 61850, are establishing a standard way for electric power substations, intelligent electronic devices, and other apparatus to communicate over data networks. These efforts pave the way to a future where protection and control of the electric power grid will...
Demand response (DR), coupled with smart-grid technologies, will be a big initiative for energy companies in the US for the next 3-5 years. This paper summarizes the key technical and IT challenges that will need to be solved to properly deploy DR at the wholesale and retail levels.
With the recent emphasis on environmental issues and concerns for global warming, many states have adopted aggressive Renewable Portfolio Standards (RPS) requiring electricity suppliers to obtain a minimum percentage of their power from renewable energy resources by a given date. Among various states, California leads with an RPS of 20% by 2010, and 33% by 2020. Most renewable resources, by their...
From the early days of Edison and Westinghouse, the educational institutions have played catch up with the developments in the electric energy industry. In those early years, the terms Electrical Engineering and Power Systems Engineering were used synonymously. Over the past two decades, the number of colleges and universities offering graduate degree programs in Electric Power Systems has dwindled,...
Summary form only given. Power system planning and operation is designed to ensure sufficient reserve margins and the ability to adequately withstand sudden events or contingencies such as outages of transmission lines, transformers and generators. Approaches to address the planning aspects have been discussed under the topic of Resource Adequacy and continue to evolve. Approaches to address operational...
Summary form only given. This paper presents a systematic approach for calculating electrical per-unit-length parameters of signal cables by the Finite Element Method. The associated software (UFIELD) has been specifically adapted to umbilical cables used in offshore control applications. Efficient and robust case specification is achieved through a library of predefined, parametrized models for the...
Illinois Institute of Technology (IIT) will lead an extensive and collaborative effort for establishing a World-Class Smart Grid Education and Workforce Training Center. The Center will develop and deploy smart grid technology courses and certificate programs via instructor-led and distance-learning methodologies. The Center will use the IIT's strong and already established smart grid and power engineering...
Summary form only given. The paper presents that smart microgrid could offer a perfect power system with higher reliabilities which could guide customers to lower their costs and utilize electricity more efficiently. The task of improving the efficiency and upgrading the resiliency of the electric grid, in order to support clean and renewable energy, is one we cannot let be exported or delegated overseas...
This paper addresses the vulnerability analysis of the electric grid under terrorist threat. This problem is formulated as a mixed-integer non-linear bilevel program. In the upper-level optimization, the terrorist agent maximizes the damage caused in the power system, which is measured in terms of the level of system load shed. On the other hand, in the lower-level optimization, the system operator...
Summary form only given. System planning on a large-scale electric power system is computationally challenging. Network reduction into a small system can significantly reduce the computational expense. The Ward equivalent technique is widely used for the reduction; however, it may not yield the same flow pattern as the original network. In this paper, a new methodology for network reduction is proposed...
Summary form only given. Increasing connection of variable distributed generation, like wind power, to distribution networks requires new control strategies to provide greater flexibility and use of existing network assets. Active Network Management (ANM) will play a major role in this but there is a continuing need to demonstrate the benefit in facilitating connection of new generation without the...
In this paper, an Artificial Neural Network (ANN) based method is developed for quickly estimating the long-term voltage stability margin. The investigation presented in the paper showed that node voltage magnitudes and the phase angles are the best predictors of voltage stability margin. Further, the paper shows that the proposed ANN based method can successfully estimate the voltage stability margin...
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