نتایج جستجو برای: Unit Commitment (UC)
تعداد نتایج: 442262 فیلتر نتایج به سال:
as renewable energy increasingly penetrates into power grid systems, new challenges arise for system operators to keep the systems reliable under uncertain circumstances, while ensuring high utilization of renewable energy. this paper presents unit commitment (uc) which takes into account the volatility of wind power generation. the uc problem is solved with the forecasted intermittent wind pow...
As renewable energy increasingly penetrates into power grid systems, new challenges arise for system operators to keep the systems reliable under uncertain circumstances, while ensuring high utilization of renewable energy. This paper presents unit commitment (UC) which takes into account the volatility of wind power generation. The UC problem is solved with the forecasted intermittent wind pow...
همه روزه شبکه های قدرت منطقه ای چندین هزار مگاوات ساعت انرژی را از واحد های تولیدی به مصرف¬کنندگان تحویل می دهند. تقاضا ممکن است به صورت قابل پیش بینی در طول یک روز تغییر کند اما در عمل می تواند نوسان های قابل توجهی نیز حول مقدار پیش بینی شده داشته باشد. برای اطمینان از امنیت سیستم و تحویل مطمئن توان، برنامه ریزی دقیقی لازم است. تعیین زمان بندی بهینه برای دیسپاچینگ نیروگاه ها به معنی محاسبه برن...
This mathematical model allows calculation of Unit Commitment (hereinafter UC), providing for compliance with all technical limitations in the equipment state and electricity regime parameters to ensure the minimization of the total cost of electric power generation, as determined on the basis of notifications wholesale market participants on the composition and parameters of the generating equ...
One of the most important problems for power system operation is unit commitment (UC), for which different constraints should be satisfied. UC is a nonlinear and large-scale problem; thus, using the evolutionary algorithms has been considered for solving the problem. In this paper, the solution of the UC problem was investigated using Modified Imperialistic Competition Algorithm (MICA). Simula...
plug-in hybrid electric vehicles (phev) technology shows great interest in the recent scientificliteratures. vehicle-to-grid (v2g) is a interconnection of energy storage of phevs and grid. byimplementation of v2g dependencies of the power system on small expensive conventional units canbe reduced, resulting in reduced operational cost. this paper represents an intelligent unitcommitment (uc) wi...
Unit commitment (UC) is a optimization task planning operation in power system and is done by scheduled the generating units in on/off states. The UC problem is to minimize system total operating cost to meet forecasting load and reserve requirement while adhering to generator and transmission constraints to satisfy a given security level. The capability of using load, energy sources and energy...
Unit commitment (UC) is to determine the optimal unit status and generation level during each time interval of the scheduled period. The purpose of UC is to minimize the total generation cost while satisfying system demand, reserve requirements, and unit constraints. Among the UC constraints, an adequate provision of reserve is important to ensure the security of power system and the fast-respo...
An efficient Unit Commitment (UC) plays an important role in the economic operation of a power system. The generation planning mainly concerns with the short-term generation scheduling, i.e. unit commitment, which determines the optimal set of generating units to be used over a time horizon of a day or a week. The UC problem has commonly been formulated as a nonlinear, large-scale, mixed-intege...
Many different methods have been presented to solve unit commitment (UC) problem in literature with different advantages and disadvantages. The need for multiple runs, huge computational burden and time, and poor convergence are some of the disadvantages, where are especially considerable in large scale systems. In this paper, a new analytical and non-iterative method is presented to solve UC p...
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