Abstract
Because of the development of power electronics technology, pulse width modulation (PWM) inverters are now being used to drive motors in order to achieve precise and energy-efficient control. Precise estimation of the increase in iron loss due to the high harmonic components of flux, including the carrier frequency, is important in the design of motors excited by a PWM inverter. We measured the iron losses of non-oriented electrical steel sheets that were excited using a single-phase full-bridge PWM inverter, and examined the influence of the carrier frequency and circuit resistance on the iron loss. We showed that the iron loss increased because of the generation of minor loops when the circuit resistance was high. Therefore, the circuit resistance should be decreased in an actual motor system.
| Original language | English |
|---|---|
| Pages (from-to) | 49-56 |
| Number of pages | 8 |
| Journal | Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi) |
| Volume | 192 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2015 Jul 1 |
Keywords
- PWM
- carrier frequency
- circuit resistance
- iron loss
- magnetic properties
- ring specimen
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering