• Srinvas Reddy Chalamalla
• P Parthasaradhi Reddy

This paper presents soft starting and speed control a 3-phase induction motor is obtained by (v/f) control. A voltage source inverter (VSI) is employed to impress a variable voltage, variable frequency supply to the motor. The VSI is controlled by dSPACE (an acronym digital signal processing and control engineering), hardware platform, which supports a hardware-in-loop feature. Simulink models can be converted into assembly language programs of the target DSP platform and can be downloaded into the target platform to run various real time applications. Six dedicated PWM lines are provided in dSPACE. Thus, two independent inverters can be simultaneously controlled. However these PWM lines can implement only asynchronous PWM not possible to ensure as it is an integral ratio of the carrier wave and modulating wave under all conditions. Consequently, it calls for the exploration of the capabilities of some other resources available with the dSPACE platform. It was found that one may configure the digital I/O lines provided by the dSPACE as PWM lines if the switching frequency is not high. In this paper the general purpose digital I/O lines are programmed as PWM lines to drive the VSI, which employs synchronous space vector modulation.

dSPACE, soft starting, voltage source inverter (VSI), PWM, synchronous space vector modulation.

"Implementation of synchronized space vector PWM for a Two-level Inverter using the digital I/O pins of the dSPACE hardware platform", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 10, page no.168-172, October-2018, Available :http://www.jetir.org/papers/JETIRJ006027.pdf

"Implementation of synchronized space vector PWM for a Two-level Inverter using the digital I/O pins of the dSPACE hardware platform", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 10, page no. pp168-172, October-2018, Available at : http://www.jetir.org/papers/JETIRJ006027.pdf