化工自动化及仪表
化工自動化及儀錶
화공자동화급의표
CONTROL AND INSTRUMENTS IN CHEMICAL INDUSTRY
2015年
4期
359-362,369
,共5页
无模型控制%风力发电%变桨距%PID控制%恒功率
無模型控製%風力髮電%變槳距%PID控製%恆功率
무모형공제%풍력발전%변장거%PID공제%항공솔
model-free adaptive control%wind power generation%variable pitch%PID control%constant power
风力发电系统是一个非线性、强耦合的系统，其风速的扰动性极强。无模型控制基于系统特性值动态估计，优化内部参数可使系统克服时变和非线性，具有比PID更好的抗干扰能力，且更适用于非线性、强耦合系统。最后，对比了在阶跃和随机风速下无模型与PID控制器的控制效果，并进行仿真研究，结果表明无模型控制能更好地保持发电机功率恒定。
風力髮電繫統是一箇非線性、彊耦閤的繫統，其風速的擾動性極彊。無模型控製基于繫統特性值動態估計，優化內部參數可使繫統剋服時變和非線性，具有比PID更好的抗榦擾能力，且更適用于非線性、彊耦閤繫統。最後，對比瞭在階躍和隨機風速下無模型與PID控製器的控製效果，併進行倣真研究，結果錶明無模型控製能更好地保持髮電機功率恆定。
풍력발전계통시일개비선성、강우합적계통，기풍속적우동성겁강。무모형공제기우계통특성치동태고계，우화내부삼수가사계통극복시변화비선성，구유비PID경호적항간우능력，차경괄용우비선성、강우합계통。최후，대비료재계약화수궤풍속하무모형여PID공제기적공제효과，병진행방진연구，결과표명무모형공제능경호지보지발전궤공솔항정。
Wind turbine system boasts strong nonlinearity and coupling,and the disturbance from the wind is very strong.The model free adaptive control based on dynamically estimating the system’ s characteristic value was proposed to overcome the system’ s time-varying and nonlinearity by optimizing internal parameters.Its ca-pacity of resisting disturbance outperforms that of PID and is more suitable for the nonlinear and strong cou-pling system.Comparing the control effect of the model-free adaptive pitch control with that of the PID control and then simulating it indicate that the model-free control can keep a constant power for the turbine generator better.
