Energy Optimal Control of PMSM Drive for Time-Varying Load Torque

2015 ◽  
Vol 710 ◽  
pp. 67-75 ◽  
Author(s):  
Jan Vittek ◽  
Branislav Ftorek ◽  
Peter Butko ◽  
Tomas Fedor
Keyword(s):  
Optimal Control ◽  
Energy Saving ◽  
Analytical Solutions ◽  
Optimal Control Theory ◽  
Controller Design ◽  
Permanent Magnet Synchronous Motor ◽  
Time Varying ◽  
Load Torque ◽  
Position Controller ◽  
Trapezoidal Profile

Speed and position controller respecting principles of energy optimal control for the drives with permanent magnet synchronous motor and time varying load torque are developed as a contribution to the energy saving and environmental protection. Two approaches to the energy saving controller design are analyzed and compared. The first one is strictly based on energy optimal control theory and derives analytical solutions of the control problem. The second approach for comparison presents approximated solution for the drive’s position controller when the optimal speed trajectory is modified to trapezoidal profile. Results are verified by simulation.

scholarly journals Optimal controller design based on minimum principle

2018 ◽  
Vol 173 ◽  
pp. 01001
Author(s):  
Huang Da ◽  
Huang ShuCai
Keyword(s):  
Optimal Control ◽  
Control Theory ◽  
Optimal Control Theory ◽  
Controller Design ◽  
Minimum Principle ◽  
Adaptive Controller ◽  
Control Effect ◽  
Modern Control Theory ◽  
Important Position ◽  
The Ideal

Optimal control theory is the foundation of the modern control theory, the minimum principle in optimal control theory has a very important position, using the minimum principle to design an adaptive controller, the controller integration advantages of the principle of minimum is not affected by the control system of linear or nonlinear constraints, and the end state and free time, is accused of quantity can be controlled and are free to wait for a characteristic, using the minimum controller application example and simulation, the results show that the minimum principle of the designed controller has the ideal control effect.

Experimental output regulation of permanent magnet synchronous motor position servo system: An internal model-based two-step control approach

2021 ◽  
pp. 014233122110302
Author(s):  
Zhaowu Ping ◽  
Yang Song ◽  
Yaoyi Li ◽  
Yunzhi Huang ◽  
Jun-Guo Lu
Keyword(s):  
Tracking Control ◽  
Internal Model ◽  
Permanent Magnet Synchronous Motor ◽  
Output Regulation ◽  
Position Tracking ◽  
Time Varying ◽  
Parameter Uncertainties ◽  
Load Torque ◽  
Position Tracking Control ◽  
Step Control

It is well known that the position tracking control problem of permanent magnet synchronous motor (PMSM) is a challenging task when parameter uncertainties and time-varying load torque disturbances are taken into account. In this paper, a two-step controller design strategy composed of triple-loop control and internal model control is proposed to achieve a wide range of position tracking control of PMSM, where the reference position can be a relatively large value. In contrast, only local position tracking control problem has been solved by an internal model approach from output regulation theory in the recent work. In addition to the simulation results, the first experimental study is conducted to demonstrate the effectiveness of the proposed two-step control method. It is worth mentioning that our design can guarantee precise position tracking with a wide position range despite parameter uncertainties and time-varying load torque disturbances.

A Complete Optimal Control Solution for Permanent Magnet Synchronous Motors

2012 ◽  
Vol 260-261 ◽  
pp. 449-453
Author(s):  
Marian Gaiceanu ◽  
Emil Rosu
Keyword(s):  
Optimal Control ◽  
Permanent Magnet ◽  
Control Strategy ◽  
Permanent Magnet Synchronous Motor ◽  
Voltage Control Strategy ◽  
Optimal Control Strategy ◽  
Load Torque ◽  
Permanent Magnet Synchronous Motors ◽  
Riccati Differential Equation ◽  
The Matrix

In this paper a voltage control strategy based on the optimal control theory, for isotropic rotor permanent magnet synchronous motor (PMSM) drives, is proposed. The complete optimal control of the three phase permanent magnet synchronous machine (PMSM) consists of three components: the state feedback, the feed forward compensation of the load torque and the reference to achieve the desired state. The control assures a smooth dynamic response, in order to achieve the desired state in steady state, the fast compensation of the load torque, and the energy minimization. The obtained solution by integrating the matrix Riccati differential equation (MRDE) is orientated towards the numerical implementation (by using a zero order hold) and it is computed on-line. The optimal control strategy is applied to PMSM drives and verified by simulations.

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