CAJ | 학술논문

为了解决矢量控制只能实现电机转矩与磁链的静态解耦,不能实现两者的动态解耦的问题,探讨了多自由度内模解耦方案.由于一自由度内模解耦,当电机参数非同步变化时,电机定子电压方程仍存在耦合现象;而二自由度内模解耦,耦合程度虽有所减少,但动态解耦仍不完全;提出了三自由度内模解耦控制方案.该方案中通过前馈控制器、内模控制器、反馈滤波器的设计,从而实现动态全解耦.通过同步电动机内模解耦控制的仿真与实验结果证明了三自由度内模解耦控制方案能够实现动态完全解耦.
위료해결시량공제지능실현전궤전구여자련적정태해우,불능실현량자적동태해우적문제,탐토료다자유도내모해우방안.유우일자유도내모해우,당전궤삼수비동보변화시,전궤정자전압방정잉존재우합현상;이이자유도내모해우,우합정도수유소감소,단동태해우잉불완전;제출료삼자유도내모해우공제방안.해방안중통과전궤공제기、내모공제기、반궤려파기적설계,종이실현동태전해우.통과동보전동궤내모해우공제적방진여실험결과증명료삼자유도내모해우공제방안능구실현동태완전해우.
The vector control can achieve static decoupling of the motor torque and flux linkage, but can not get dynamic decoupling. The muhi-degree freedom internal model decoupling was presented. One-de-gree-freedom internal model (1 DOF-IM) decoupling control had coupling phenomenon, when parameters changed in different percentage. Despite of the decrease in coupling, two-degree-freedom internal model (2DOF-IM) decoupling control method existed coupling. So three-degree-freedom internal model (3DOF-IM) decoupling control was proposed. By the design of feedforward controller, internal model controller and feedback filter, the 3DOF-IM control decoupled completely. The results of simulation and experiment show that the 3DOF-IM decoupling control method can achieve dynamic decoupling.