湖南工程学院学报:自然科学版
湖南工程學院學報:自然科學版
호남공정학원학보:자연과학판
Journal of Hunan Institute of Engineering(Natural Science Edition)
2012年
1期
16-19
,共4页
永磁同步电机%滑模观测器%滑模变结构控制%在线检测
永磁同步電機%滑模觀測器%滑模變結構控製%在線檢測
영자동보전궤%활모관측기%활모변결구공제%재선검측
PMSM%sliding mode observer%sliding mode variable structure control%on-line measure
永磁同步电动机(PMSM)是一个多变量、非线性、强耦合的系统,传统的PID调节器不能满足高性能的控制要求。本文在同步电机数学模型的基础上首先提出自适应的滑模观测器,以在静止坐标下的电压、电流为变量计算电机转速,并利用滑模变结构控制的方法对q轴电流进行检测,利用Lyapunov证明了方法的收敛性。仿真结果表明:该方案比传统的PID控制具有超调小,过渡时间短、鲁棒性强的特点,表明了该策略的有效性。
永磁同步電動機(PMSM)是一箇多變量、非線性、彊耦閤的繫統,傳統的PID調節器不能滿足高性能的控製要求。本文在同步電機數學模型的基礎上首先提齣自適應的滑模觀測器,以在靜止坐標下的電壓、電流為變量計算電機轉速,併利用滑模變結構控製的方法對q軸電流進行檢測,利用Lyapunov證明瞭方法的收斂性。倣真結果錶明:該方案比傳統的PID控製具有超調小,過渡時間短、魯棒性彊的特點,錶明瞭該策略的有效性。
영자동보전동궤(PMSM)시일개다변량、비선성、강우합적계통,전통적PID조절기불능만족고성능적공제요구。본문재동보전궤수학모형적기출상수선제출자괄응적활모관측기,이재정지좌표하적전압、전류위변량계산전궤전속,병이용활모변결구공제적방법대q축전류진행검측,이용Lyapunov증명료방법적수렴성。방진결과표명:해방안비전통적PID공제구유초조소,과도시간단、로봉성강적특점,표명료해책략적유효성。
Permanent magnet synchronous motor (PMSM) is a multivariable nonlinear system with strong coupling. Traditional PID controller is widely used in PMSM system, but it can't meet the need of high performance. By using the voltage and current of the d-q coordinate, an adaptive sliding mode observer for estimating the speed of rotor is presented in this article and the q-axis current is measured on-line. The convergence condition is proved by laypunov theory. Simulation results show the improved performance with the advantages of fastness rapid response and good robustness is superior to the traditional PID con- troller.