Position sensorless open loop control for motor drives with output filter and transformer
US9054621B2 · kind B2 · utility
15Cited by
14References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2013 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Jun 6, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P27/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power converter, control apparatus and methods are presented for driving a permanent magnet motor or other load through a sine wave filter and a transformer, in which inverter output current is controlled using a current-frequency relationship to convert a desired frequency or speed value to a current setpoint, and the inverter output current is regulated to the current setpoint using a control algorithm with a bandwidth below the resonant frequency of the sine wave filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.