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Nyquist Criterion

Nyquist Criterion: Nyquist Criterion - This stability criterion enables one to establish the stability of a system using a graphical procedure in the frequency domain. Here also there is no…

Correlation Between Frequency and Transient Response

Correlation Between Frequency and Transient Response: As has been stated, the use of frequency response for the design of control systems requires a Correlation Between Frequency and Transient Response. Time…

Transient Response of Closed Loop Drive System

Transient Response of Closed Loop Drive System: The Transient Response of Closed Loop Drive System is of fundamental importance and must be investigated in detail. The time response of a…

Introduction Control Techniques in Electric Drives

Introduction Control Techniques in Electric Drives: An electric drive is a well established industrial drive as it has several advantages and special features. Its Control Techniques consists in starting, speed…

Reversible Drive using Dual Converter

Reversible Drive using Dual Converter: It is possible to reverse both voltage and current of the load using a dual converter. The current reversal is very fast in this case…

Reversible Drive using Armature Current Reversal

Reversible Drive using Armature Current Reversal: A schematic of a reversible drive using contactors to reverse the Armature Current Reversal for reversing the rotation is shown kin Fig. 4.81. The…

Voltage Source Inverter Fed Synchronous Motor Drive

Voltage Source Inverter Fed Synchronous Motor Drive: An inverter fed synchronous motor has been very popular as a converter motor in which the synchronous motor is fed from a CSI…

Synchronous Speed on Variable Frequency Supply

Synchronous Speed on Variable Frequency Supply: As has already been discussed, the speed of a synchronous motor can be varied by supply frequency variation similar to an induction motor. The…