| 风电拉平负荷下的发电系统可靠性评估 |
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| 引用本文： | 吴政球,唐民富,张旭乐,王韬.风电拉平负荷下的发电系统可靠性评估[J].郑州大学学报(工学版),2011,32(2). |
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| 作者姓名： | 吴政球 唐民富 张旭乐 王韬 |
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| 作者单位： | 湖南大学电气与信息工程学院,湖南长沙,410082 |
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| 摘 要： | 风能具有随机性、间歇性和波动性的特点,风力发电并网对发电系统的可靠性有一定影响,为了评估合风电场的发电系统可靠性,提出了风电功率拉平负荷的概念.基于风电功率与系统负荷为相互独立的随机变量的特点,采用裕度表的方式推导出风电场输出功率跟负荷的联合概率分布,建立了风电功率拉平负荷模型,与常规发电机组停运容量模型结合计算发电系统的可靠性指标,为含风电场的发电系统可靠性分析提供了新的思路和方法.算例计算分析结果表明了该方法的合理性和有效性.
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| 关 键 词： | 风电功率 联合概率分布 容量停运模型 发电系统可靠性 |
Power System Reliability Evaluation in Wind Power Leveling Load |
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| WU Zheng-qiu
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TANG Min-fu
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ZHANG Xu-le
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WANG Tao.Power System Reliability Evaluation in Wind Power Leveling Load[J].Journal of Zhengzhou University: Eng Sci,2011,32(2). |
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| Authors: | WU Zheng-qiu TANG Min-fu ZHANG Xu-le WANG Tao |
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| Affiliation: | WU Zheng-qiu,TANG Min-fu,ZHANG Xu-le,WANG Tao(School of Electrical and Information Engineering,Hunan University,Changsha 410082,China) |
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| Abstract: | The wind energy always affects the reliability of power system for its randomness,intermittent and Fluctuation.A concept that Wind Power leveling Load(WPLL)is proposed to evaluate the reliability of power system when wind farms are grid-connected.Based on the fact that the wind power and loads are independent random variables,a combined probability distribution function of wind power and loads is deduced by the margin table method.And hence WPLL model is established.This established model is combined with t... |
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| Keywords: | wind power combined probability distribution outage capacity model power system reliability |
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