NDLI: Assorted carrier-variable frequency-random PWM scheme for voltage source inverter

Content Provider	IET Digital Library
Author	Paramasivan, Muthukumar Paulraj, Melba Mary Balasubramanian, Sankaragomathi
Abstract	This study presents an assorted carrier-variable frequency random pulse width modulation (AC-VF-RPWM) method in which a new type of mixed carrier wave is proposed for a three-phase voltage source inverter-fed induction motor drive. This study has focused on the reduction of acoustic noise where a deterministic PWM strategy is replaced with a proposed RPWM. Inverted sine carrier, sine carrier and triangle carrier are used to compare with the reference sinusoidal wave to generate the pulse (lead and lag) positions. The two groups (lead and lag) each with three pulse positions are randomly selected and it aims at dispersing the harmonic voltage over a wide band area. The linear feedback shift register-based random bit generation algorithms are used to select the three pulse positions from the lead and lag groups. In addition, a frequency modulator converts the carriers into a randomised frequency, which will give more potency to the randomisation process. The results of co-simulation and experimental evaluation that the proposed method could provide harmonic power spectra of the voltage and current spreading over a much broader band area, as compared with the conventional schemes. In addition, Xilinx XC3S500E FPGA device synthesis results are presented.
Starting Page	1993
Ending Page	2001
Page Count	9
ISSN	17554535
Volume Number	10
e-ISSN	17554543
Issue Number	Issue 14, Nov (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/10/14
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2016.0580
Journal	IET Power Electronics
Publisher Date	2017-08-03
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC-VF-RPWM Method Acoustic Noise Reduction Assorted Carrier-variable Frequency-random PWM Scheme Asynchronous Machine Deterministic PWM Strategy Drive Frequency Modulator Harmonic Power Spectra Harmonic Voltage Induction Motor Drive Inverted Sine Carrier Linear Feedback Shift Register-based Random Bit Generation Algorithm Mixed Carrier Wave Pulse Position Generation PWM Invertors Randomisation Process Randomised Frequency Shift Registers Sine Carrier Three-phase Voltage Source Inverter-fed Induction Motor Drive Triangle Carrier Voltage Source Inverter Voltage-source Converter Xilinx XC3S500E FPGA Device Synthesis
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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