Increment Information Predictive Control Of Permanent Magnet Synchronous Motor

Increment motion control is a kind of optimize control method under dynamic and uncertain conditions. For complex non-linear control problems, it is difficult to gain a satisfactory solution using classical linear control theory. Increment motion control is a multi-state control process. During the whole control time-field area, the system represents different states such as position, rate, acceleration and so on. The control methods include step control, constant frequency control and rise-drop frequency control. Only under different states and reaching high precision control, the system could attain whole optimization.Predictive control is an advanced control system based on the model developing with the industry control practice. The basic principle is based on predictive model with quadratic online to optimize the performance, then feedback emendate the predictive model. So predictive model, roll optimization and feedback emendation are basic factors of predictive control, which are also the key technologies for using it in practice successfully.Developing with the electronic and the micro-electronics technology, the basal mode of modern drive control has developed from continuous analog control to "DSP-IPM-motor" discrete digital control. The hypostasis of discrete control is accord with predict control. The uncertainty of the system can be overcome through predicting the change of the system and getting the corresponding control method based on the optimized performance, then correcting the model using the practiced process dates. The application of predictive control could make the control object and control performance get implementing and optimization, parameters of system model get proper correction in every cycle.Increment motion control system refers to microsecond even nanosecond electronic apparatus switch transient process, millisecond digital controller adjust process and second motor transition process. In unify time-order control, the system has discrete control characteristic. Because of the system complicacy, it make us have to range our research to find a better control method, which could against the control character and need lower requirement to math model, more convenient online calculation, better control effect and easier to integration. In this paper, presents the non-parameters modeling issue about increment motion system for the first time, use the dynamic matrix control (DMC) technique and obtain well control effect. It presents position-speed-current predictive control, and makes basic research in this area.