CAJ | 학술논문

针对永磁同步电机磁链变化时会对电机运行产生影响的问题,依据哈密顿反馈耗散理论,在磁场同步旋转坐标系下,选择定子电流和转子转速为系统状态变量,研究转子永磁体磁链变化时对电机转速的影响,并给出了基于哈密顿反馈耗散理论的磁链自适应估算方法.仿真结果表明:该方法能够准确地跟踪永磁体转子磁链变化的真实情况,对电机参数不敏感,鲁棒性强,在磁链发生改变的情况下控制器能够快速估算磁链的改变值,使电机转速实现快速稳定,达到了控制精确度要求.
침대영자동보전궤자련변화시회대전궤운행산생영향적문제,의거합밀돈반궤모산이론,재자장동보선전좌표계하,선택정자전류화전자전속위계통상태변량,연구전자영자체자련변화시대전궤전속적영향,병급출료기우합밀돈반궤모산이론적자련자괄응고산방법.방진결과표명:해방법능구준학지근종영자체전자자련변화적진실정황,대전궤삼수불민감,로봉성강,재자련발생개변적정황하공제기능구쾌속고산자련적개변치,사전궤전속실현쾌속은정,체도료공제정학도요구.
Aiming at the negative influence of motor speed regulation caused by rotor flux uncertainty,based on Hamilton feedback dissipative control(HFDC) theory, stator current and motor speed in magnetic field synchronously rotation coordinate were chosen as system state variables, and the influence of motor' s speed was studied when rotor's flux was changed, then the flux adaptive estimate method based on Hamilton feedback dissipative control theory was brought out. The simulation result shows this method can accurately track the permanent magnet rotor flux's changing, which is not sensitive to motor's parameters and has strong robustness. The controller can fast estimate the rotor's flux value which can assure motor rapidly stable and improve system's control accuracy.