大规模风电参与系统频率调整的技术展望

发布时间：2019-02-12 21:34

【摘要】：要求风电主动参与系统频率调整是风电大规模并网后电力系统为保证其自身安全做出的必然选择。世界多个国家的风电并网导则对此提出了明确要求。然而,传统的风电机组一般都没有提供频率调整功能,风电如何参与调频是目前的研究热点。从风电参与系统调频的控制策略和能力评估两个方面对相关研究进展进行了综述。控制方面,对比研究了模拟惯量控制、下垂控制、转子转速控制、桨距角控制以及协调控制等不同控制策略。调频能力方面,分析了单台及多台风电机组的调频能力,归纳了风电区域互补性对调频能力的影响。并展望了需进一步重点研究的内容:风电场内部机组间及风电场与常规系统间的协调控制、风电场与储能等新技术的协调控制、风电场参与调频的能力评估与经济性分析。
[Abstract]:It is an inevitable choice for power system to ensure its own safety after large-scale wind power grid connection to require wind power to participate in system frequency adjustment. The guidebook of wind power grid connection of many countries in the world has put forward the explicit request to this. However, the traditional wind turbine generally does not provide frequency adjustment function, and how wind power participate in FM is a hot research topic at present. This paper summarizes the research progress of wind power system FM control strategy and capability evaluation. In the aspect of control, different control strategies such as simulated inertia control, droop control, rotor speed control, pitch angle control and coordinated control are compared. In terms of FM capability, the FM capability of single and multiple wind turbines is analyzed, and the influence of regional complementarity of wind power on FM capability is summarized. It also looks forward to the contents that need to be further studied: the coordinated control between the units inside the wind farm and between the wind farm and the conventional system, the coordinated control of the new technologies such as wind farm and energy storage, the ability evaluation and economic analysis of the wind farm participating in FM.
【作者单位】：强电磁工程与新技术国家重点实验室(华中科技大学);
【基金】：国家重点基础研究发展计划项目(973项目)(2012CB215106) 国家863高技术基金项目(2011AA05A112) 国家自然科学重点基金项目(50937002)~~
【分类号】：TM614

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