Combined Armature And Field Voltage Control Of DC Motor
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Date
2014-12
Journal Title
Journal ISSN
Volume Title
Publisher
The British University in Dubai (BUiD)
Abstract
In this research work a multivariable feedback control system for the separately excited DC motor is presented. The control inputs are the motor armature and the motor field voltages, while the controlled outputs are the motor angular speed and the motor field current. Three different multivariable control systems were designed and compared. The first control system uses the new advances in the multivariable control theory, namely, the least effort controller, developed by Whalley, R. and Ebrahimi, M. The performance of the system with this controller is compared with the performance of the system with other two controllers. One from the classical control school, using the Inverse Nyquist Array approach, and the other from the modern control school, using the Optimal Control approach. The comparison between the three types of controllers includes the general control performance, suitability and applicability, disturbance recovery capability and the energy consumed by the control system itself. This work concludes that the new least effort control technique provides the simplest controller with superior performance and disturbance recovery capability.
This should promote the implementation of this new type of controllers for general multivariable applications.
Description
DISSERTATION WITH DISTINCTION
Keywords
control system, inverse Nyquist array, optimal control, multivariable feedback