CLOSED LOOP CONTROL OF DC MOTOR USING FIRING ANGLE
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In this paper ,we describes the analytical and experimental studies on a variable speed of DC motor driven by single phase controlled bridge rectified power supply using SCRs. The armature voltage is supplied by controlled bridge rectifier. A controller design is provided which improves the performance of the speed control without using any kind of starter for starting purpose which is normally used in our laboratory also I^2R losses are almost reduces which developed in rheostat operation. The speed control of DC motor is very crucial in application where precise and protection is required. For precise control we need to use a controller that has high accuracy. In this paper we present a converterbased closed loop speed control by varying firing angle for DC motor using microcontroller Arduino Uno ATmega328p .Feedback speed monitoring is based on IR transmitter and receiver. Hence sensing and calculation part of process is handled by Arduino Uno board.
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