含风电场电力系统的暂态安全风险评估.doc

文档介绍：
含风电场电力系统的暂态安全风险评估
白雪峰,孙明远*
(哈尔滨工业大学电气工程及自动化学院,哈尔滨 150001)
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摘要:大规模风电并网给电力系统的稳定运行带来了新的风险,因此量化含风电场电力系统
的风险会为电力系统的规划、设计、运行与控制提供重要的依据。本文提出了含风电场电力
系统的暂态安全风险评估方法,侧重于评估风电场并入电网对系统功角稳定的影响。利用蒙
特卡洛模拟系统的故障扰动和风速波动等随机因素,采用 EEAC 法将风电场对同步发电机
功角的影响等值为同步发电机的机械功率,并计算相应的暂态稳定裕度。最后基于蒙特卡洛
模拟法,量化了系统暂态安全风险指标。
关键词:风电场;暂态安全风险;蒙特卡洛模拟;EEAC
中图分类号:TM712
Transient security risk assessment of power system
incorporrating with wind farm
BAI Xuefeng, SUN Mingyuan
(School of Electrical Engineering and Automation, Harbin Institute of Technology,
Harbin 150001)
Abstract: Large scale renewable power generation brings new risk to the power system operation
and stabilization, therefor measuring the risk of power system incorporating with wind farm would
provides reference to the planning, designing, operation, controling of the power system. This
paper proposes a method of transient security risk assessment of power system incorporating with
wind farm, focused on the influences on the rotor angle stability when the wind farm incorporates
with the power system. Uncertain factors based on Monte-Carlo simulation include both sequence
of disturbance in power grid and stochastic generation of the wind farm. Then the influence of the
wind farm to the rotor angle of synchronous generator will be equal to mechanical power with
EEAC. Transient stability margin will also puted by EEAC