Reliability Assessment Of Power Systems With Wind Power Generation
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Reliability Assessment of Power Systems with Wind Power Generation
Wind power generation, the most promising renewable energy, is increasingly attractive to power industry and the whole society and becomes more significant in the portfolio of generation systems. However, because of the unfavorable features of wind power, it affects all aspects of traditional processes of power system planning and operation. Power systems primarily planned for providing reliable and economic electric power to their customers. Therefore, it is critical to assess and understand the impacts of wind power on power system reliability. This thesis focuses on reliability assessment of power systems with wind power generation. Based on the investigation of reliability evaluation methodology and power system operations, a Monte Carlo based production cost simulation model is proposed and has been developed in the thesis. 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 wind forecast error is addressed in the model by applying forecasted value for day-ahead unit commitment and actual value for real-time operation. A process of Auto-Regressive Moving Average is designed to automatically perform day-ahead hourly wind generation forecasting through the whole simulation period. Methods for evaluating capacity value of wind power generation are also investigated. A realistic case study shows the proposed Monte Carlo based production cost simulation model can be used to assess reliability of power systems with wind power generation.
Reliability Assessment of Power Systems with Wind Power Generation
Keywords: auto-regressive moving average, capacity value, Monte Carlo simulation, unit commitment, wind power generation, power system reliability.
Wind Farm
Author: Gastón Orlando Suvire
language: en
Publisher: BoD – Books on Demand
Release Date: 2011-07-28
During the last two decades, increase in electricity demand and environmental concern resulted in fast growth of power production from renewable sources. Wind power is one of the most efficient alternatives. Due to rapid development of wind turbine technology and increasing size of wind farms, wind power plays a significant part in the power production in some countries. However, fundamental differences exist between conventional thermal, hydro, and nuclear generation and wind power, such as different generation systems and the difficulty in controlling the primary movement of a wind turbine, due to the wind and its random fluctuations. These differences are reflected in the specific interaction of wind turbines with the power system. This book addresses a wide variety of issues regarding the integration of wind farms in power systems. The book contains 14 chapters divided into three parts. The first part outlines aspects related to the impact of the wind power generation on the electric system. In the second part, alternatives to mitigate problems of the wind farm integration are presented. Finally, the third part covers issues of modeling and simulation of wind power system.