الفهرس 
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Abstract
The unit commitment problem determines the combination of available generating units and scheduling their respective outputs to satisfy the forecasted demand with the minimum total production cost under the operating constraints enforced by the system for a specified period that usually varies from 24 hours to one week. Attempts to develop rigid unit operating schedules more than one week in advance are extremely curtailed due to uncertainty in hourly load forecasts at lead times greater than one week. The high dimensionality and combinatorial nature of the unit commitment problem curtail attempts to develop any rigorous mathematical optimization method capable of solving the whole problem for any real-size system. Nevertheless, in the literature, many methods using some sort of approximation and simplification have been proposed. The available approaches for solving unit commitment problem can usually be classified into heuristic methods and mathematical programming methods. Unit commitment and economic dispatch, when combined together, is a useful tool to find the most economical generation schedule with which demand and spinning reserve requirement are supplied and all generating unit constraints, such as unit ramp rates, unit minimum and maximum generation capabilities, and unit minimum up-time and down-time, are satisfied over a time horizon. For systems consisting of multiple areas, area import/export capabilities and tie line capacity constraints also need to be taken into account. Dynamic programming ,Particle swarm and Seeker Optimization techniques are applied in this thesis to determine the optimal unit commitment and economic dispatch schedule for large-scale regulated and deregulated power systems. In addition, the market operation components are integrated into this newly developed multi-area (deregulated) UC and economic dispatch to optimize the cost of generation and meet the need of the restructured power industry. These market operation components consist of bilateral contracts which are direct agreements between a power producer and either a load serving entity or an ISO (Independent System Operator) outside of a centralized bid-based power market. The bilateral contracts considered in this thesis include call options, put options, forward contracts and reliability must-run (RMR) contracts. Options and forward contracts are commonly used by generation companies and load serving entities to hedge against the risk of price volatility in the real-time market and increase their profit.