Inverter control device
US11984821B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2020 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Apr 8, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60L2240/529
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inverter control device 200 includes a current control unit 210 that outputs a voltage commands (Vd*, Vq*), a modulation wave control unit 220 that generates a modulation wave based on the voltage commands (Vd*, Vq*), a pulse generation unit 230 that generates a PWM pulse for controlling an inverter 100 using a modulation wave and a carrier wave of a predetermined frequency, and a pulse shift unit 250 that corrects the phase of the PWM pulse such that the PWM pulse is output in a phase corresponding to a harmonic of a predetermined order of the modulation wave in the near-zero-cross region including the zero-cross point at which the modulation wave changes across 0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.