A new control technique for the 7-phase permanent magnet synchronous machine (PMSM) when a failure in speed sensor is introduced. This will make whole drive system more robust and at same time reduce cost. The position of shaft motor are obtained by tracking saturation saliency occurred. proposed saliency-tracking algorithm based on measuring derivative stator currents after switching insulated...

Wind Energy is one of the favorable renewable energy resources and the multilevel inverter has been proven to be one of the important enabling technologies in wind energy conversion system (WECS) utilization. Wind energy conversion system with utilization grid systems are getting more and more widespread with the increase in the energy demand and the concern for the environmental pollution arou...

Received Apr 29, 2012 Revised Jan 7, 2013 Accepted Jan 24, 2013 Multilevel inverters can reach the increasing demand for power quality and power ratings along with lower harmonic distortion and lesser electromagnetic interference (EMI). As the number of levels increases, it is important to control more switches in parallel with their concurrent processing capability. In this paper space vector ...

1 PG Scholar, Department of EEE, JNTU Anantapur, Andhra Pradesh, India 2 Assistant professor, Department of EEE, JNTU Anantapur, Andhra Pradesh, India ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract In this paper, a modified space vector Pulse width modulation (MSVPWM) algorithm has been develop...

The pulse width modulation (PWM) inverter is an obvious choice for any industrial and power sector application. Particularly, drives benefit from the higher DC-link utilization, acoustic noise, vibration standards. Many PWM techniques have been proposed to meet drives’ demand utilization lower harmonics suppression noise reductions. Still, random (RPWM) best candidate reducing noises. Few RPWM ...