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A d.c. motor is driven from a class-A d.c. chopper with source voltage of 220 V and at frequency of 1000 Hz. Determine the range of duty cycle to obtain a speed variation from 0 to 2000 rpm while the motor delivered a constant load of 70 Nm. The motor details as follows: 1kW, 200 V, 2000 rpm, 80% efficiency, R. = 0.1 2, La = 0.02 H, and KØ = 0.54 V/rad /s. %3D %3D %3D

A d.c. motor is driven from a class-A d.c. chopper with source voltage of 220 V and at frequency of 1000 Hz. Determine the range of duty cycle to obtain a speed variation from 0 to 2000 rpm while the motor delivered a constant load of 70 Nm. The motor details as follows: 1kW, 200 V, 2000 rpm, 80% efficiency, R. = 0.1 2, La = 0.02 H, and KØ = 0.54 V/rad /s. %3D %3D %3D

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Q. 2 A d.c. motor is driven from a class-A d.c. chopper with source voltage of 220 V and at frequency of 1000 Hz. Determine the range of duty cycle to obtain a speed variation from 0 to 2000 rpm while the motor delivered a constant load of 70 Nm. The motor details as follows: 1kW, 200 V, 2000 rpm, 80% efficiency, R. = 0.1 2, L. KØ = 0.54 V/rad /s. 0.02 H, and %3D
Transcribed Image Text:Q. 2 A d.c. motor is driven from a class-A d.c. chopper with source voltage of 220 V and at frequency of 1000 Hz. Determine the range of duty cycle to obtain a speed variation from 0 to 2000 rpm while the motor delivered a constant load of 70 Nm. The motor details as follows: 1kW, 200 V, 2000 rpm, 80% efficiency, R. = 0.1 2, L. KØ = 0.54 V/rad /s. 0.02 H, and %3D
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