14-7 For harmonic frequency analysis, an induction motor can be represented by a per-phase equivalent circuit as shown in Fig. P14-7, which includes a fundamental-frequency counter-emf or Thèvenin voltage ETH. Also, RTH = 3.0 and XTH = 5.0 N. It is supplied by a voltage source inverter, which produces a 60-Hz line-line voltage component of 460 V. The load on the motor is such that the fundamental-frequency current drawn by the motor is 10 A, which lags the fundamental- frequency voltage by an angle of 30°. Obtain and plot the current drawn by the motor as a function of time, if it is driven by a square-wave VSI. What is the peak current that the inverter switches must carry?

14-7 For harmonic frequency analysis, an induction motor can be represented by a per-phase equivalent circuit as shown in Fig. P14-7, which includes a fundamental-frequency counter-emf or Thèvenin voltage ETH. Also, RTH = 3.0 and XTH = 5.0 N. It is supplied by a voltage source inverter, which produces a 60-Hz line-line voltage component of 460 V. The load on the motor is such that the fundamental-frequency current drawn by the motor is 10 A, which lags the fundamental- frequency voltage by an angle of 30°. Obtain and plot the current drawn by the motor as a function of time, if it is driven by a square-wave VSI. What is the peak current that the inverter switches must carry?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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