Investigation of modulation index on iron losses in soft magnetic materials supplied by DMPWM inverter

Tangsiriworakul, Chanwit; Manop, Chalermchat

Investigation of modulation index on iron losses in soft magnetic materials supplied by DMPWM inverter

Author(s)

Tangsiriworakul, Chanwit

Manop, Chalermchat

Date Issued

December 1, 2009

Type

Conference Paper

Abstract

This paper studies iron losses and acoustic noise in soft magnetic materials supplied by delta-modulated PWM inverter (DMPWM). In the experiment, we use 0.5 mm-thick and determine equal peak fundamental flux density on each test procedure, with 0.3-0.9 modulation index and 1-5 kHz inverter switching frequencies. The results show that the difference of iron losses and acoustic noise depend on modulation index and switching frequency. Additionally, the results are useful for the criteria of designing standard inverter for low power losses.

Citation

Icmet 09 Proceedings of the 2009 International Conference on Mechanical and Electrical Technology, 99-104, 2009