An induction motor has the following ratings: 4.6 kV (L-L), 60 Hz, sixpole, 10 MW, 1192 r/min. It is to drive a compressor requiring a torqueof 75 kN-m at a speed of 1000 r/min. A simple voltage-source invertersupplied from a three-phase, phase-controlled rectifier is to be used. Theavailable utility supply is at 4.6 kV (L-L), three-phase, and 60 Hz. Mak-ing any reasonable assumptions, estimate:(a) the required frequency of the inverter(b) the required direct-link voltage(c) the delay angle of the rectifier.

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Answered: the required frequency of the inverter…

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the required frequency of the inverter the required direct-link voltage the delay angle of the rectifier.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Question

An induction motor has the following ratings: 4.6 kV (L-L), 60 Hz, six
pole, 10 MW, 1192 r/min. It is to drive a compressor requiring a torque
of 75 kN-m at a speed of 1000 r/min. A simple voltage-source inverter
supplied from a three-phase, phase-controlled rectifier is to be used. The
available utility supply is at 4.6 kV (L-L), three-phase, and 60 Hz. Mak-
ing any reasonable assumptions, estimate:
(a) the required frequency of the inverter
(b) the required direct-link voltage
(c) the delay angle of the rectifier.

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