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Developing an Optimal Strategy to Manage the Curtailment of Wind Farms Output

Hozouri, Mohamad Amin | 2013

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 45235 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): AbbaspourTehrani Fard, Ali; Fotuhi-Firuzabad, Mahmud
  7. Abstract:
  8. In recent years, due to environmental concerns together with rising costs of the fossil fuels, the wind energy usage in electricity generation of various countries has experienced a growing trend. Owing to inherent characteristics of wind turbines power generation, i.e. uncertainty in their output level as well as being undispatchable, the rapid growth of installed wind farms, however, has caused some new challenges in operation and planning studies of power systems. Among the major challenges in operation of high wind penetrated power systems, wind power curtailment has been emerged as a new problem in wind development. System operator may curtail wind farms output in order to meet system constraints and it is a barrier to make maximum use of this free and non-polluting source of energy. In this regard, after a full description of wind power curtailment and its causes, short-term and long-term solutions to the problem are studied in this thesis. First, the conventional units redispatch is presented as a short-term solution to wind power curtailment problem. The modified redispatch method and formulation aiming at reducing wind curtailment level is discussed and simulated on the modified 24-bus IEEE-Reliability Test System (IEEE-RTS). Wind power curtailment due to transmission congestion is studied at different wind penetration levels and the impact of the redispatch on more wind power utilization is evaluated. In next section, electrical energy storage systems are introduced and presented as wind energy time-shifting tool and a long-term solution to wind curtailment issues. Multi-objective optimization using genetic algorithm is then utilized to achieve the optimal solution including the type, place, power rating and storage capacity of energy storage systems. The potential impact of electricity storage on wind power curtailment is then studied on the modified 24-bus IEEE-RTS system. The results clarify the proposed method impacts in order to integrate wind power more efficiently
  9. Keywords:
  10. Wind Energy ; Wind Farms Power Curtailment ; Generation Redispatch ; Multiobjective Optimization ; Electrical Energy Storage System

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