| 引用本文: | 钱敏慧,张建胜,秦文萍,等.计及DFIG调频的系统频率响应特性分析及快速频率支撑策略研究[J].电力系统保护与控制,2025,53(03):58-67.[点击复制] |
| QIAN Minhui,ZHANG Jiansheng,QIN Wenping,et al.System frequency response characteristic considering DFIG frequency regulation and fast frequency response strategy[J].Power System Protection and Control,2025,53(03):58-67[点击复制] |
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| 摘要: |
| 针对含双馈风机调频的系统频率响应模型不明确和转子有效旋转动能利用不充分的问题，提出一种基于双馈风电机组有效旋转动能的频率支撑策略。首先，基于传统系统频率响应模型建立了含双馈风机调频的系统频率响应模型，并推导计及风电渗透率下系统频率偏差域表达式，在不同阻尼比下分析双馈风机调频对系统频率响应特性的影响。其次，深入分析现有的计及双馈风机转子转速的频率支撑策略的优缺点。结合我国风电机组调频控制参数的规程要求，设计一种基于双馈风机有效旋转动能的自适应频率支撑策略。最后，基于IEEE 14节点电力系统模型，验证了所提策略在不同扰动、风速及风电渗透率条件下风机转子动能充分释放参与调频的优越性能。 |
| 关键词: 双馈风电机组 自适应频率支撑策略 频率响应模型 下垂控制 |
| DOI：10.19783/j.cnki.pspc.240623 |
| 投稿时间：2024-05-21修订日期：2024-08-21 |
| 基金项目:国家重点研发计划项目资助(2021YFB2400500) |
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| System frequency response characteristic considering DFIG frequency regulation and fast frequency response strategy |
| QIAN Minhui1,2,ZHANG Jiansheng1,QIN Wenping1,YANG Dejian3,WANG Xin3 |
| (1. College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan 030024, China; 2. National Key
Laboratory of Renewable Energy Grid-integration (China Electric Power Research Institute), Beijing 100192, China;
3. Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology
Ministry of Education (Northeast Electric Power University), Jilin 132012, China) |
| Abstract: |
| To address the issues of an unclear system frequency response model with a doubly-fed induction generator (DFIG) and insufficient utilization of rotor effective rotational kinetic energy, this paper proposes a frequency support strategy based on the effective rotational kinetic energy of the DFIG. Firstly, a system frequency response model including DFIG frequency regulation is established based on the traditional system frequency response model, and an expression for system frequency deviation considering wind power penetration is derived. The impact of DFIG frequency regulation on system frequency response characteristics with different damping ratios is analyzed. Secondly, the advantages and disadvantages of existing frequency support strategies considering DFIG rotor speed are deeply analyzed. Combining the regulatory requirements for frequency regulation control parameters of wind turbines in China, an adaptive frequency support strategy based on the effective rotational kinetic energy of the DFIG is designed. Finally, based on the IEEE 14-bus power system model, the superior performance of the proposed strategy in fully releasing rotor kinetic energy for frequency regulation under different disturbances, wind speeds, and wind power penetration conditions is verified. |
| Key words: DFIG adaptive frequency support strategy frequency response model droop control |
