微特电机 ›› 2026, Vol. 54 ›› Issue (9): 48-52.

• 驱动控制 • 上一篇    下一篇

风电场变速恒频风力发电机谐波扰动控制研究

严林鹏1,李  明2,阙盛银2,衡  强3   

  1. 1. 华电新能源集团股份有限公司福建分公司,福州 350001;2. 华电新能源集团股份有限公司福清分公司,福清 350300;3. 北京智盟信通科技有限公司,北京 350322
  • 出版日期:2026-09-28 发布日期:2026-09-28
  • 作者简介:严林鹏(1991—),男,本科,工程师,主要从事风机运维及安全环保管理。 李明(1983—),男, 本科,高级工程师,主要从事风电场运维工作。 阙盛银(1990—),男,本科,助理工程师,主要从事风电场电气及自动化专业。 衡强(1989—),男,本科,工程师,主要从事风电场运维工作。

Research on Harmonic Disturbance Control of Variable Speed Constant Frequency

YAN Linpeng1,LI Ming2,QUE Shengyin2,HENG Qiang3   

  1. 1. Huadian New Energy Group Co.,Ltd.,Fujian Branch,Fuzhou 350001,China;2. Huadian New Energy Group Co.,Ltd.,Fuqing Branch,Fuqing 350300,China;3. Beijing Zhimeng Information and Communication Technology Co.,Ltd.,Beijing 350322,China
  • Online:2026-09-28 Published:2026-09-28

摘要:

针对变速恒频风力发电机组在运行过程中易产生谐波扰动、造成电流畸变的问题,设计了一种风电场变速恒频风力发电机谐波扰动闭环反馈控制系统。 系统以可编程逻辑控制器( programmable logic controller,PLC) 与监控与数据采集系统( supervisory control and data acquisition,SCADA) 为核心硬件组件,实时监测并采集风力发电机组的运行状态数据,采用傅里叶变换实现谐波检测与总谐波畸变率计算。 进而采用比例-积分( proportional-integral,PI) 控制结合复系数滤波器构建闭环反馈控制器,通过离散化处理实现数字谐波补偿。 测试结果表明,设计系统可显著改善三相电流波形畸变,将各次谐波含量控制在 2%以内,有效提升了风力发电机组的运行稳定性。

关键词: 风电场, 变速恒频风力发电机, 主控 PLC, 闭环反馈控制, 复系数滤波器

Abstract:

Aiming at the problem that variable speed constant frequency wind turbines are prone to generate harmonic disturbances during operation,leading to current distortion,a closed-loop feedback control system for harmonic disturbance of variable speed constant frequency wind turbines in wind farms is designed. The system adopts programmable logic controller (PLC) and supervisory control and data acquisition (SCADA) as the core hardware components to monitor and collect the operational status data of wind turbine units in real time. Fourier transform is employed for harmonic detection and total harmonic distortion calculation. Furthermore,a closed-loop feedback controller is constructed by combining proportional-integral(PI) control with a complex coefficient filter,and digital harmonic compensation is realized through discretization. The test results show that the designed system can significantly improve the waveform distortion of three-phase currents,control the content of each harmonic within 2%,and effectively enhance the operational stability of wind turbine units.

Key words: wind farm, variable speed constant frequency wind turbine, main control programmable logic controller, closed-loop feedback control, complex coefficient filter

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