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DC Motor Speed Control via Fuzzy / Pole Placement / PI Controller
Högskolan Dalarna, Akademin Industri och samhälle, Elektroteknik.
2010 (engelsk)Independent thesis Advanced level (degree of Master (Two Years)), 10 poäng / 15 hpOppgave
Abstract [en]

This report presents a new way of control engineering. Dc motor speed controlled by three controllers PID, pole placement and Fuzzy controller and discusses the advantages and disadvantages of each controller for different conditions under loaded and unloaded scenarios using software Matlab. The brushless series wound Dc motor is very popular in industrial application and control systems because of the high torque density, high efficiency and small size. First suitable equations are developed for DC motor. PID controller is developed and tuned in order to get faster step response. The simulation results of PID controller provide very good results and the controller is further tuned in order to decrease its overshoot error which is common in PID controllers. Further it is purposed that in industrial environment these controllers are better than others controllers as PID controllers are easy to tuned and cheap. Pole placement controller is the best example of control engineering. An addition of integrator reduced the noise disturbances in pole placement controller and this makes it a good choice for industrial applications. The fuzzy controller is introduce with a DC chopper to make the DC motor speed control smooth and almost no steady state error is observed. Another advantage is achieved in fuzzy controller that the simulations of three different controllers are compared and concluded from the results that Fuzzy controller outperforms to PID controller in terms of steady state error and smooth step response. While Pole placement controller have no comparison in terms of controls because designer can change the step response according to nature of control systems, so this controller provide wide range of control over a system. Poles location change the step response in a sense that if poles are near to origin then step response of motor is fast. Finally a GUI of these three controllers are developed which allow the user to select any controller and change its parameters according to the situation.

sted, utgiver, år, opplag, sider
Borlänge, 2010. , s. 118
Emneord [en]
DC motor, Fuzzy Controller, Pole Placement Controller, PID controller, GUI
HSV kategori
Identifikatorer
URN: urn:nbn:se:du-5514OAI: oai:dalea.du.se:5514DiVA, id: diva2:519055
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Technology
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Tilgjengelig fra: 2011-04-26 Laget: 2011-04-26 Sist oppdatert: 2013-07-04bibliografisk kontrollert

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