Soft start- soft stop of an induction motor

Τίτλος

Soft start- soft stop of an induction motor

Θέμα

Motors

Δημιουργός

Constantinou, Costakis

Πηγή

Higher Technical Institute

Το πλήρες κείμενο είναι διαθέσιμο από το Υπουργείο Ενέργειας, Εμπορίου Βιομηχανίας και Τουρισμού.

Εκδότης

Library of Cyprus University of Technology

Ημερομηνία

1991

Συνεισφέρων

John, D.

Δικαιώματα

Απαγορεύεται η δημοσίευση ή αναπαραγωγή, ηλεκτρονική ή άλλη χωρίς τη γραπτή συγκατάθεση του δημιουργού και κάτοχου των πνευματικών δικαιωμάτων.

Μορφή

pdf

Γλώσσα

eng

Τύπος

text

Αναγνωριστικό

EED0130

Σύνοψη

Advanced motor control engineering introduces modern, new technology for controlling which employs methods and techniques having nothing to do with relays and generally with any mechanical logic devices, any more. Instead, power electronic devices are used. These are controlled by analoque or digital ccts which either programmable or one fuction ccts. If programmable, personal computers perform their programing.
The scope of the present project is to introduce, analyse and apply amethod for the starting of 3-phase induction motors utilizing power electronics. The method is known as "Soft starting of an induction motor".
The primary emphasis in this project is given in designing and developing the control cct used for driving the power cct. Together with the represantation of the varius parts of the control cct, a detailed analysis of those parts is provided.
The soft starting of an induction motor, is an advanced method, which comes to substitute the previous methods where mechanical starters and relays were used. The new method is cheaper, its construction takes less space and it can provide protection of the motor, such as phase failure. Also, the torque of the rotor and hence of the shaft is increased smoothighly, eliminating sudden movements and large surges of current in the stator windings are avoided.