| 引用本文: | 刘 军,全哲辰.风电机组一次调频对载荷的影响分析及综合惯量控制优化方法研究[J].电力系统保护与控制,2025,53(02):38-49.[点击复制] |
| LIU Jun,QUAN Zhechen.Analysis of the impact of wind turbine generator primary frequency regulation on mechanical loads and research on an integrated inertia control optimization method[J].Power System Protection and Control,2025,53(02):38-49[点击复制] |
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| 摘要: |
| 风电机组参与一次调频期间会产生附加机械载荷，影响机组安全稳定运行。为明确风电机组参与一次调频对机械载荷的影响机制，建立了含综合惯量控制的风电机组机械结构动力学模型，分析了综合惯量控制对叶片、塔架及传动轴系载荷的影响。针对风电机组参与一次调频会激发传动轴扭振和塔架侧向振动的问题，首先，在综合惯量控制的基础上，提出了根据风电机组转速和频率变化动态调节虚拟惯量系数和下垂系数的方法，提升风电机组的调频性能。其次，提出了基于转矩补偿的扭振抑制策略，提高轴系的等效阻尼和等效刚度。搭建了基于OpenFAST和Matlab的风电机组机电耦合仿真模型。仿真结果表明，所提策略提升风电机组频率支撑能力的同时，减小了调频过程中传动轴和塔架的附加机械载荷。 |
| 关键词: 风电机组 调频控制 频率支撑 机械载荷 载荷分析 轴系扭振 |
| DOI：10.19783/j.cnki.pspc.240414 |
| 投稿时间：2024-04-08修订日期：2024-06-26 |
| 基金项目:陕西省重点研发计划项目资助(2021GY-106)；陕西省教育厅科研项目资助(JK725) |
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| Analysis of the impact of wind turbine generator primary frequency regulation on mechanical loads and research on an integrated inertia control optimization method |
| LIU Jun,QUAN Zhechen |
| (School of Automation and Information Engineering, Xi’an University of Technology, Xi'an 710048, China) |
| Abstract: |
| During the participation of wind turbine generators (WTGs) in primary frequency regulation, additional mechanical loads will be generated, affecting the safe and stable operation of the wind turbine. To clarify the impact mechanism of wind turbine participation in frequency regulation on mechanical loads, a mechanical structure dynamic model of WTGs containing integrated inertia control is established, and the influence of integrated inertia control on blade, tower and drivetrain loads is analyzed. Looking at torsional vibration of the drive shaft and lateral vibration of the tower excited by wind turbine participation in frequency regulation, first, using integrated inertia control, a method of dynamically adjusting the virtual inertia coefficient and droop coefficient according to the changes of wind turbine speed and frequency is proposed to improve the frequency regulation performance of WTGs. Secondly, a torsional vibration suppression strategy based on torque compensation is proposed to increase the equivalent damping and equivalent stiffness of the drivetrain. An electromechanical coupling simulation model of WTGs based on OpenFAST and Matlab is built. The results show that the proposed strategy can not only improve the frequency support capability of WTGs, but also reduce the additional mechanical loads on the drivetrain and tower during the frequency regulation process. |
| Key words: wind turbine frequency regulation frequency support mechanical load load analysis torsional vibration |
