Power converter and heat pump system provided therewith
US12224678B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2023 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Aug 28, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2201/15
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power converter includes a power conversion unit for a three-phase alternating current output from an alternating-current power source, and a current compensation unit that supplies a compensating current to the alternating-current power source. The current compensation unit includes a current compensation unit inverter including switching elements, a current compensation unit capacitor, a current compensation unit reactor, a compensation controller that obtains an output voltage command value, and a drive signal generator that generates a drive signal usable to drive the switching elements by a three-phase modulation method. The current compensation unit inverter supplies the compensating current to the alternating-current power source via the current compensation unit reactor. Td≤(34.00/fsw−0.145)(1.55−0.055*Pmax), where fsw represents a carrier frequency employed for generation of the drive signal, Pmax represents a maximum input power of the power conversion unit, and Td represents a dead time for the drive signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.