Power converter and control method for power converter
US12413140B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2021 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Oct 28, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/5387
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power converter includes: a multiphase inverter circuit including multiple switching elements; multiple current sensors each of which detects a current of a respective phase of the inverter circuit; a terminal voltage detector that detects a voltage of each terminal of a load connected to the inverter circuit; a switching element drive circuit that controls the switching elements according to a switching pattern given; a fault detector that detects a fault in the inverter circuit or the current sensors; and a fault identifier that, after the fault detector detects the fault, switches the switching pattern to be given to the switching element drive circuit according to types of faults detectable by the fault detector, and identifies a type and a location of the fault based on the value of the current detected or the value of the voltage detected during the control according to the switching pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.