基于多变量参考的风电机组解耦控制方法及仿真验证
Decoupling Control Method and Simulation Verification of Wind Turbine Based on Multivariable Reference
邓华 1李从飞 1陈真 1张琦 1刘国炜1
作者信息
- 1. 国电南京自动化股份有限公司,江苏南京 210032
- 折叠
摘要
变桨变速型风电机组分别采用变桨和转矩调节控制模式.解耦控制被用于平滑切换 2 种控制模式,避免转矩与变桨调节同时作用或频繁切换带来的机组转速和功率振荡问题.提出一种基于变桨角度、转矩输出、发电机转速等多种变量参考的变桨转矩解耦控制方法,并引入时间迟滞判断条件,实现转矩控制和变桨控制的解耦.采用上述解耦控制策略,基于PLC可编程控制器、Bladed仿真软件构建了 3MW双馈型风电机组控制系统及仿真模型.结果表明,额定风况附近,风电机组平均功率波动在±50 kW以内,统计功率曲线达到设计功率曲线要求,可满足额定风况附近风电机组的控制需求.
Abstract
The variable speed wind turbine adopts pitch and torque regulation control modes respectively.Decoupling control is used to smoothly switch between two control modes,avoiding the problem of unit speed and power oscillation caused by the simultaneous action of torque and pitch regulation or frequent switching.This paper proposes a pitch-torque decoupling control mechanism based on multiple variable references such as pitch angle,torque output,and generator speed,and introduces a time delay judgment condition to achieve the decoupling of torque control and pitch control.Using the above decoupling control strategy,a 3 MW double-fed wind turbine control system and simulation model were constructed based on PLC programmable logic controller and Bladed simulation software.The results showed that the power fluctuation of the wind turbine under rated wind conditions was within±50 kW,and the statistical power curve met the design power curve requirements,which can meet the control requirements of the wind turbine near the rated wind conditions.
关键词
多变量参考/风电机组/解耦控制/仿真Key words
multivariable reference/wind turbine/decoupling control/simulation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据