Power conversion apparatus utilizing zero-phase power supply device that provides zero-phase sequence components
US6320775A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2000 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Sep 20, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P27/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power conversion apparatus is provided which includes a power converter including a plurality of semiconductor switching elements which operate to perform power conversion, thereby to generate polyphase alternating current, an ac load circuit connected to an ac output side of the power converter, and a zero-phase power supply device connected to the ac load circuit. In this apparatus, the power converter, ac load circuit, and the zero-phase power supply device are connected in the form of a loop, so that voltage and current of the zero-phase power supply device provide zero-phase-sequence components when viewed from the ac output side of the power converter through the ac load circuit. The power converter performs time-sharing operations to supply and receive electric power to and from the ac load circuit, and supply and receive zero-phase-sequence power to and from the zero-phase power supply device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.