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ppt on speed control of dc motor using triac - akash - 08-16-2017 Introduction The development of high performance motor drives is very important in industrial applications. Generally, a high performance motor drive system must have good dynamic speed command tracking and load regulating response. D.C motors have long been the primary means of electric traction. D.C motor is considered a SISO system having torque/speed characteristics compatible with most mechanical loads. This makes a D.C motor controllable over a wide range of speeds by proper adjustment of its terminal voltage. Recently, brushless D.C motors, induction motors, and synchronous motors have gained widespread use in electric traction. However, there is a persistent effort towards making them behave like dc motors through innovative design and control strategies. Hence dc motors are always a good proving ground for advanced control algorithm because the theory is extendable to other types of motors. Many practical control issues (motor control problems): 1) Variable and unpredictable inputs 2) Noise propagation along a series of unit processes 3) Unknown parameters 4) Changes in load dynamics Under these conditions, the conventional constant gain feedback controller fails to maintain the performance of the system at acceptable levels. The incorporation of feed forward in artificial neural networks is important for several reasons the dynamical properties of the system, and in practice it may improve the performance. They are generally present in most nonlinear dynamical system and can be used to implement specific structures. Speed Control of DC Motor Using TRIAC. DC motors are widely used in industry because of its low cost, less complex control structure and wide range of speed and torque. With the increasing use of power semiconductor units, the speed control of DC motor is increasingly getting sophisticated and precise. A TRIAC is a bidirectional thyristor with three Terminals. Its three terminals are designated as MT1 (main terminal 1),MT2 & gate by G. Triac can be turned on in each half cycle of the applied voltage by applying a positive or negative voltage to the gate with respect to the terminal 1. To successfully trigger a TRIAC, Gate current must come from the main terminal 2 side of the circuit ppt on speed control of dc motor using triac - umesh v. suryawanshi - 08-16-2017 ppt on speed control of dc motor using triac Abstract The present investigations relate to the development of TRIAC-DIAC based DC series motor speed controller for mud pumps of industrial drill-rig equipment. This paper deals with mud pumps on drilling rigs provide the means for supplying flow and pressure of the chemical mud fluid through the drill pipe, drill bit and return to the surface via the annulus of drill pipe. In this process, the mud maintains down-hole pressure, cools the drill bit and removes the cuttings from the well bore. Since flow is proportional to motor speed and pressure is proportional to motor current, flow and pressure signals can be obtained from the speed calculator card and from the field current of the DC series motor. The speed control of a dc series motor using a TRIAC together with a bridge rectifier is developed. The TRIACs of today are well suited to the requirements of switching inductive loads. TRIAC control circuits must be particularly well tuned to be both economical and applicable to inductive loads. ppt on speed control of dc motor using triac - shailendra singh - 08-16-2017 hi am Kabil I would like to get details on speed control of DC motor using triac ..I need ur help |