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The implementation of emission certificates in Europe in 2005 has lead to new uncertainties especially for power companies resulting in additional costs for the power generation. The introduction of certificates goes along with political conditions and objectives particularly in the European Union until 2020. In consequence, these regulations take influence on the power plant scheduling as well as...
Before deregulation, th Korea Electric Power Corporation (KEPCO) had been a vertically integrated monopoly over power generation, transmission, and distribution. However, the generation competition market based on Cost based pool (CBP) began in April, 2001. The KEPCO generation department has been allocated into six independent GenCos. Before the reform of the power industry that took place in South...
Deregulated electricity markets in the U.S. currently minimize total bid costs to select bids and their generation levels but determine payments based on market clearing prices. The inconsistency between auction and settlement mechanisms can lead to a significantly higher consumer payment. This gives rise to the “payment cost minimization,” an alternative auction mechanism that minimizes consumer...
A methodology based on the security-constrained unit commitment (SCUC) is applied to analyze the transmission congestion in the Eastern Interconnection of the United States for 2008 and 2018. The proposed SCUC tool for this study is referred to as the POwer Market Simulator (POMS). The identified congestions are visualized along with the Geographical Information System (GIS) data and compared with...
This paper describes the top-down value based transmission planning process for Eastern Wind Integration and Transmission Study (EWITS) with the consideration of large scale wind generation over the Eastern Interconnect footprint. Achieving 20% to 30% wind energy penetration across the Eastern Interconnect will require significant transmission infrastructure expansion. The transmission overlays developed...
In support of work to assess and ensure the reliability and resiliency of Florida's power generation, transmission, and distribution system as load and generation evolve in future years, groundwork is presented for the development of an open, dynamic model of the Florida grid and geographically distributed projections for growth in load and generation within the state. Using load forecasts provided...
In this paper, an enhanced congestion control scheme for market related applications is presented. Based on the concept of Marginal Value Expansion, violated transmission constraints can be handled more effectively in the optimization process. Compared to the traditional congestion control method, available resources in system can be utilized more sufficiently. The effectiveness of the new scheme...
Demand Response (DR) provides mechanisms and incentives for utilities, business and residential customers to reduce energy use (and costs) during time of peak demand or when system reliability is at risk. DR is considered by CPUC, DOE and FERC as one of high-priority Smart-Grid Functionalities. FERC has developed a national action plan on demand response, recognizing that a more extensive use of demand...
This paper concerns the challenge of teaching future energy systems using concepts familiar to engineering students. It is stressed that unless operating and design problems are formulated in a way understandable to those who do not specialize in electric power systems it becomes very difficult to identify what may be the roadblocks to innovation and better performance of the evolving energy systems...
Since 2004 changes in the regulatory framework of the Chilean public and electricity sectors have been taken place (19940 law in March 2004). Transparency rules must be following by the market agents in pricing procedures of the electricity market. Consequently, technical, economical, and reliability data of the Chilean power system are available for simulation and optimization purposes. The Chilean...
This paper describes the process required to adapt a conventional EMS Simulator for testing the Real-Time Electricity Market. The paper discusses the need and requirements for the simulator. CAISO's traditional EMS Dispatcher Training Simulator was modified and coupled with CAISO's Market Applications to act as a real time Market and Grid Operation Simulator. This new simulator provides realistic...
In this paper we develop a model of combined heat and power (CHP) dispatch for the system consisting of both thermal generators and wind turbines. In this model, the probability of stochastic wind power is included in the constraint set. This approach avoids the probabilistic infeasibility caused by using the average of random variables. The effects of wind speed on the generated power are investigated...
This paper presents a method for estimating the parameters of dynamic models for induction motor dominating loads. Using particle swarm optimization, the method finds the adequate set of parameters that best fit the sampling data from the measurement for a period of time, minimizing the error of the outputs, active and reactive power demands and satisfying the steady-state error criterion.
Negotiation of secure bilateral transactions has become an important issue for better operation, planning and management of competitive electricity markets. In this paper, secure bilateral transactions have been determined with minimum deviations in economic generation schedule and real power losses for hybrid electricity markets. The generation pattern and real and reactive power loss has been obtained...
The deployment of plug-in hybrid vehicles (PHEVs) and micro-combined heat and power (μ-CHPs) technologies creates the opportunity for these units to be optimally operated under various control schemes to enhance electric grid operation. In addition, if vehicle-to-grid (V2G) and thermal storage features are considered, these embedded technologies could have even a greater impact on network performance...
The paper focuses on reliability assessment of power systems with wind power generation. A Monte Carlo based production cost simulation model is introduced in the paper. The model closely simulates actual system operation processes and takes system random behaviors into account. A simplified unit commitment method is created to fit the simulation for reliability evaluation purpose. The effects of...
The present transmission system was not designed to work efficiently as a means of delivering large amounts of renewable energy. Large amounts of wind energy and the RTO energy markets have increased the need for transmission to deliver energy off peak and improve the efficiency of the energy markets. Papers and reports have been written that describe the use of generation optimization and power system...
This paper proposes a novel technique to forecast day-ahead electricity prices based on Panel Cointegration (PC). The current researches on the electricity price forecasting focus on the analysis of unstable economic time series. However, due to the difference of the allocation of power resource and consumption in different regions, the time series of electricity consumption and sales price in a single...
This paper presents two small test systems for power system economic studies. The first system is based on the original PJM 5-bus system, which contains data related to real power only, because it demonstrates results based on the linearized DC optimal power flow (OPF) model. This paper suggests some modification to the original data, as well as new parameters related to reactive power such that AC-model-based...
Network pricing analysis has always been complex for distribution networks due to the data size involved. Simplified reference network models help to reduce the data to be handled, and hence the associated complexity. These models provide a test system to assess the investment consequences of applying different network charging approaches and analyze the impact of such approaches on customer end prices...
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