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Output constrained IMC controllers in control systems of electromechanical actuators

Control Theory and Technology 2015年第3期13卷 245-255页

作者： Piotr M.MARUSAK Suwat KUNTANAPREEDA Institute of Control and Computation Engineering Warsaw University of Technology Faculty of Engineering King Mongkut's University of Technology North Bangkok

electromechanical actuators are widely used in many industrial applications. There are usually some constraints existing in a designed system. This paper proposes a simple method to design constrained controllers for electromechanical actuators. The controllers merge the ideas exploited in internal model control and model predictive control. They are designed using the standard control system structure with unity negative feedback. The structure of the controllers is relatively simple as well as the design process. The output constraint handling mechanism is based on prediction of the control plant behavior many time steps ahead. The mechanism increases control performance and safety of the control plant. The benefits offered by the proposed controllers have been demonstrated in real-life experiments carried out in control systems of two electromechanical actuators： a DC motor and an electrohydraulic actuator.

关键词： Constrained control internal model control (IMC) model predictive control (MPC) electromechanical actuators

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Application of a Robust Model Reference Adaptive Control Algorithm to a Nonlinear Automotive Actuator

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International Journal of Automation and computing 2014年第4期11卷 377-391页

作者： Alessandro di Gaeta Umberto Montanaro Istituto Motori National Research Council Naples Italy

Model reference adaptive control is a viable control method to impose the demanded dynamics on plants whose parameters are affected by large uncertainty. In this paper, we show by means of experiments that robust adaptive methods can effectively face nonlinearities that are common to many automotive electromechanical devices. We consider here, as a representative case study, the control of a strongly nonlinear automotive actuator. The experimental results confirm the effectiveness of the method to cope with unmodeled nonlinear terms and unknown parameters. In addition, the engineering performance indexes computed on experimental data clearly show that the robust adaptive strategy provides better performance compared with those given by a classical model-based control solution with fixed gains.

关键词： Model reference adaptive control robust adaptive control nonlinear systems automotive control electronic throttle body electromechanical actuators

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Active Disturbance Rejection Control for the Airborne Pmsm in Direct Drive Ema Application

Active Disturbance Rejection Control for the Airborne Pmsm i...

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2009 9th International Conference on Electronic Measurement & Instruments（ICEMI’2009）

作者： Yongling Fu Hesong Liu Yao Pang Haitao Qi School of Automation Science and Electrical Engineering Beihang University Xueyuan Road 37# Haidian District Beijing China

Compared with the general ball screw electromechanical actuators （EMAs）,direct drive EMAs have several attractive advantages such as more reliable,efficient,accurate,and integrated due to the elimination of the intermediate gear ***,the direct drive structure brings challenges to the servo control of the permanent magnetic synchronous motors （PMSMs） which are widely used in *** at improving the performance of the PMSM servo system,such as wide speed range and outstanding load disturbance-rejection ability,a novel active disturbance rejection control （ADRC） is presented in this *** begin with,as a technique for estimating and compensating uncertainties,characteristics,and principles of the ADRC strategy are introduced in detail by comparing with PID and several advanced control ***,based on the PMSM model in d-q frame,an ADRC controller for the d-axis current is designed to implement the rotor flux linkage oriented vector ***,ADRC controllers for the position and q-axis current are designed to complete the position servo *** results verify that the ADRC-based PMSM servo system is fast,precise,of no overshoot and strongly robust to load ***,the ADRC strategy is feasible in the PMSM servo control and this provides necessary technical support to the direct drive EMA,which is one of the enabling technologies for the all-electric aircraft （AEA）.

关键词： permanent magnet synchronous motors active disturbance rejection control direct drive electromechanical actuators vector control

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