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兼顾系统调频需求的分布式风电分散自治调控策略 被引量:16

Strategy for Decentralized Autonomous Regulation of Distributed Wind Power Considering System Frequency Regulation Demand
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摘要 越来越多的风力发电将分布在配电系统中,它们无法像常规电源一样由输电网调度中心集中调度和控制,通常需要采用分散自治的调控方式。然而,风电机组完全不顾输电系统的运行需求充分自治,会在某些方式下导致系统运行状态恶化。因此,需要研究风电机组新型调控策略,使充分自治转变成能够兼顾系统某些特殊运行需求的有限自治,配合系统渡过难关。针对此问题,提出了能够兼顾系统调频需求的分布式风电机组分散自治调控策略,该策略根据风电机组运行信息和系统频率将风电机组调控区划分为并网控制区、正常调控区、异常调控区、紧急调控区和脱网控制区五类,并给出了异常调控、紧急调控和故障调控三种新的调控模式。算例表明:风电机组能够较好地根据系统调频需求,在最大可用输出功率范围内调整自身输出功率,一定程度上给予系统积极的支持。 More and more wind generators distribute in electric power system. It is impossible to regulate them by dispatch center of transmission network like conventional electrical sources. It needs to be regulated decentralizedly and autonomously. However, autonomous regulation of wind generators separated fully from transmission network will lead system to be worse in some modes. So it needs to study new strategies for regulation of wind turbine and make the regulation to be limitedly autonomous, which will cooperate with system operation and help power system recover. This paper proposed a strategy for decentralized autonomous regulation of distributed wind power considering system frequency regulation demand. According to system frequency and operation information of wind generators, regulation regions of wind generators are divided into interconnection region, normal region, abnormal region, urgent region and clearing region. Further, three new regulation modes, which are abnormal step-regulation, urgent step-regulation and fault step-regulation, are proposed. Example system results show that wind generators can regulate their outputs in order to support the system according to the system frequency regulation demand.
作者 陈宁 于继来
出处 《电工技术学报》 EI CSCD 北大核心 2008年第11期123-130,共8页 Transactions of China Electrotechnical Society
基金 国家自然科学基金(50477008) 高等学校博士学科点专项科研基金(20040213031) 黑龙江省自然科学基金(E0326)资助项目
关键词 风力发电 调频 分布式 分散 自治 Wind power, frequency regulation, distributed, decentralized, autonomous
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参考文献17

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