Multi-quality electric power supply apparatus
US6104102A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1999 |
| Grant date | Aug 15, 2000 |
| Priority date | — |
| Expiry date | Jul 30, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J9/062
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multi-quality electric power supply apparatus supplies electric power based on the demand of various loads. The multi-quality electric power supply apparatus includes an inverter having a three-phase bridge configuration with an A/C output terminal connected to a distribution line of each phase of the three-phase four-wire A/C system. A capacitor is connected among two input terminals of the D/C side of the inverter and a neutral line of the three-phase four-wire A/C system. An uninterruptable power supply device is inserted from a node point to the distribution line of the inverter in a given distribution line of one phase on the load side to compensate for a voltage drop of the distribution line and to supply a given voltage in the distribution line during an interrupted power supply. A voltage drop compensation device is inserted from a node point to the distribution line of the inverter in another given distribution line of one phase on the load side, in order to compensate for the voltage drop of the distribution line, where each phase of the inverter is independently controlled and the electric power is supplied to the single phase load connected between the neutral line an…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.