Algebraic real-time algorithm for B-Spline sinusoidal pulse width modulation in three phase voltage source inverters.

<p>Multiphase (more than three phases) is very much popular due to their eminent features compared to conventional three-phase counter parts. In order to drive the multiphase machine, it requires same phase input w.r.t the no of phases at the output. This paper mainly focuses on five phase, because even after failure of one phase, the performance does not degraded much. Voltage source inverters (VSIs) are used to feed the induction motor. voltage source inverters (VSIs) switches are ON and OFF precisely to control the output. In order to implement harmonic waveform characteristic, carrier based PWM (pulse width modulation) is performed. By using with and without third harmonic injection machine torque is highly improved. Using MATLAB software, the simulation results are presented in the form of computer traces and high traded performance of the machine are discussed.</p>

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Comparative Study of SPWM and HEPWM Techniques for Photovoltaic Inverter

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1115.555 ◽

2015 ◽

Vol 1115 ◽

pp. 555-559

Author(s):

Douadi Bendib ◽

F. Akel ◽

M. Chikh ◽

C. Larbes ◽

M. Laour ◽

...

Keyword(s):

Pulse Width Modulation ◽

Evaluation Study ◽

Voltage Source ◽

Phase Voltage ◽

Voltage Source Inverter ◽

Pv Array ◽

Harmonic Elimination ◽

Output Quality ◽

Three Phase ◽

Sinusoidal Pulse Width Modulation

This paper presents an evaluation study of two pwm techniques applied to a three-phase voltage source inverter supplied by photovoltaic (PV) energy sources. A Pspice-based model of the pv array is developed and tested. The power and currant of the pv array versus the voltage is plotted. Then the pv array is connected to a basic three phase voltage source inverter VSI. Two control techniques are used. The first one is the classic sinusoidal pulse width modulation spwm, which is based on the comparison of two signals, the sinusoidal reference and a triangular carrier. The second one is based on the principle of harmonic elimination. The system is simulated using orcad-pspice, the results are given, discussed and compared based on different performance indices (output quality, thd, frequency).

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Simulation of Processes in Dual Three-Phase System on the Base of Four Inverters with Synchronized Modulation

Advances in Power Electronics ◽

10.1155/2011/581306 ◽

2011 ◽

Vol 2011 ◽

pp. 1-9 ◽

Cited By ~ 15

Author(s):

Valentin Oleschuk ◽

Gabriele Grandi ◽

Padmanaban Sanjeevikumar

Keyword(s):

Pulse Width ◽

Pulse Width Modulation ◽

Continuous Phase ◽

Power Sharing ◽

Voltage Source ◽

Phase System ◽

Voltage Source Inverters ◽

Synchronous Control ◽

Three Phase ◽

Novel Method

Novel method of space-vector-based pulse-width modulation (PWM) has been disseminated for synchronous control of four inverters feeding six-phase drive on the base of asymmetrical induction motor which has two sets of windings spatially shifted by 30 electrical degrees. Basic schemes of synchronized PWM, applied for control of four separate voltage-source inverters, allow both continuous phase voltages synchronization in the system and required power sharing between DC sources. Detailed MATLAB-based simulations show a behavior of six-phase system with continuous and discontinuous versions of synchronized PWM.

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