Converting multiphase power from one frequency to another using current waveforms
US4439823A · kind A · utility
16Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1982 |
| Grant date | Mar 27, 1984 |
| Priority date | — |
| Expiry date | Jan 11, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M5/272
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
a multiphase AC current of one frequency is converted to a multiphase current of another frequency by a frequency changer having its output terminals terminated by a load having the impedance characteristics of a voltage source. In this arrangement the multiple phases of a practical AC current source such as a synchronous generator are connected directly to each load phase, even where the bidirectional switches of the UFC are arranged in pulse groups or a bridge configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.