POSITION CONTROL OF A DC MOTOR USING PWM-PIM DIGITAL REDESIGN METHOD | ||
| مدل سازی در مهندسی | ||
| Article 4, Volume 7, Issue 18, December 2009, Pages 39-49 PDF (588.37 K) | ||
| DOI: 10.22075/jme.2017.1538 | ||
| Receive Date: 28 January 2017, Revise Date: 21 February 2026, Accept Date: 28 January 2017 | ||
| Abstract | ||
| Pulse-width modulation (PWM) is a commonly used technique in control of electric DC motors. PWM control systems have on/off control inputs with fixed amplitude and variable duty cycle. Here, a PWM control law is determined from a given discrete-time (DT) control law by applying the principle of equivalent area. An approach to the DT control system design is Plant Input Mapping (PIM) digital redesign, which gives a DT controller from a predesigned continuous-time (CT) controller. The PIM is a well-known digital redesign method which can guarantee the closed-loop stability for any non-pathological fast and slow sampling frequencies, has a superior performance even for low sampling frequencies, and is applicable to a variety of CT control systems. The proposed design method is applied to an experimental DC motor control setup to illustrate its effectiveness. | ||
| Keywords | ||
| Principle of Equivalent Areas; Digital Redesign; Pulse-Width Modulation; DC Motor; Plant-Input Mapping | ||
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