Electrical Drives And Control. Front Cover. ruthenpress.info I needed thise book in pdf. User Review - Flag as ruthenpress.info ruthenpress.info Limited preview - [PDF] EE Electrical Drives and Controls (EDC) Books, Lecture Notes, 2marks with answers, Important Part B 16marks Questions, Question Bank & Syllabus. Electrical Drives & Control. Class.: II Year MECH. Being prepared by me and it meets the knowledge requirement of the university curriculum. Signature of the.
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Four Quadrant Operations Steady State Stability of the Drive System Introduction to Drive System Drive System : is a combination of prime mover , transmission equipment and mechanical load. It converts electrical energy to mechanical energy, to give motion, to different machines and mechanisms for various kinds of process control. Its main objective is to controls speed, torque, direction, and the resulting horsepower of a system. Examples of the prime mover : 1. Steam engine turbine 3.
The system is not very safe to operate The noise level at the work spot is very high.
Classification of Electrical Drives Multi-Motor Drive In a Multi-Motor drive, each operation of the mechanism is taken care of by a separate drive motor. The system contains several individual drives, each of which is used to operate its own mechanism. Dynamic Conditions of a drive system Dynamic conditions occur in a electric drive system.
This variables may be mechanical such as speed, torque etc. These conditions generally exist during starting, braking and speed reversal of the drive. The dynamic conditions arise in a variable speed drive when transition from one speed to another is required.
Dynamic Conditions of a drive system The drive may also have transient behavior if there are sudden changes of load, supply, voltage or frequency. The dynamic behavior of a drive has a close relation to its stability.
A drive is said to be stable if it can go from one state of equilibrium to another following a disturbance in one of the parameters of the system. Stability can be identified as either steady-state or transient.
Dynamic Conditions of a drive system The condition of stability depend on the operating point. The dynamics of the drive can be investigated using the Torque balance equation given by. Dynamic Conditions of a drive system The load torque occurring in mechanical system may be Passive or active. Passive torque If the torque always opposes the direction of motion of drive motor it is called a passive torque.
Active torque Load torque which have the potential to drive the motor under equilibrium condition are called active load torque. Steady State Operating Speed Motor T- characteristic variation of motor torque with speed with all other variables voltage and frequency kept constant. By using power TL electronic converters, the motor characteristic can be varied. A disturbance in any part of drive causes system speed to depart from steady-state point.
Steady-state speed is of stable equilibrium if: Introduction to Electrical Drives. Flag for inappropriate content.
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