SIMPLIFIED DIGITAL CONTROLLER FOR VARIABLE FREQUENCY INVERTER FED THREE-PHASE INDUCTION MOTOR | ||||
| ERJ. Engineering Research Journal | ||||
| Article 1, Volume 35, Issue 2, April 2012, Page 85-90 PDF (153.25 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2012.67117 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| G. A. Abo Ahmed1; S. A. Kalilah2; A. E. Mobarka2 | ||||
| 1Damonhour power station, Beheira, Egypt | ||||
| 2Electrical Engineering Department, Faculty of Engineering, Minoufiya University, Shebin-EL-Kom, Egypt, | ||||
| Abstract | ||||
| This paper presents a simplified approach for a digital controller of variable frequency three-phase inverter supplied a three-phase induction motor. The performance characteristics with variable frequency supply have been studied and simulated by a computer program. The torque-speed characteristics of the motor varied with variation of the frequency. Torque-speed characteristics at different frequencies are presented. Interesting waveforms of the digital controller have been recorded. Frequency variation covers many industrial applications such as manufacturing rollman belly, water pumps, composers, chiller fans and some home application. | ||||
| Keywords | ||||
| Variable frequency inverter; digital controller; high frequency modulation and interfacing technique | ||||
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