Switching loss characteristics of advanced DPWM methods using space vector based clamping sequences

Author

Gowri, Sri K. ; Reddy, Brahmananda T. ; Babu, Sai Ch

Author_Institution

Dept. of EEE, RGMCET, Nandyal, India

Volume

1

fYear

2009

fDate

4-6 Oct. 2009

Firstpage

343

Lastpage

348

Abstract

This paper analyzes the inverter switching loss characteristics of space vector based discontinuous PWM (bus-clamping) sequences. The discontinuous PWM (DPWM) sequences considered in this paper are 012 and 721 sequences. Utilizing these two sequences and varying the zero state at a spatial angle Â¿ where Â¿ is between 0Â° and 60Â°an infinite number of advanced DPWM (ADPWM) methods can be generated. The aim of the paper is to analyze the inverter switching losses of ADPWM methods. Also it will be shown that steady state line current distortion during high modulation indices is reduced significantly compared with the conventional SVPWM (CSVPWM). So, compared with the CSVPWM the proposed ADPWM methods are advantageous both in reducing line current distortion as well as inverter switching losses.

Keywords

PWM invertors; distortion; losses; switching convertors; advanced DPWM methods; bus clamping sequences; discontinuous PWM; inverter switching loss; modulation indices; space vector; steady state line current distortion; Clamps; Energy loss; Functional analysis; Industrial electronics; Pulse inverters; Pulse width modulation inverters; Space vector pulse width modulation; Steady-state; Switching loss; Voltage; ADPWM; CSVPWM; Inverter switching loss; normalized switching energy loss;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics & Applications, 2009. ISIEA 2009. IEEE Symposium on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4244-4681-0

Electronic_ISBN

978-1-4244-4683-4

Type

conf

DOI

10.1109/ISIEA.2009.5356458

Filename

5356458