To obtain the three-phase current via adjusting width of pulses with single DC-link current sensor
US7898210B2 · kind B2 · utility
11Cited by
7References
16Claims
0Family size
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Key dates
| Filing date | Aug 15, 2008 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Aug 29, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/53876
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
After an AC motor generates a three-phase current, modulate the three-phase current to generate an original voltage space vector, and add three detecting vectors with a sum of zero after the original voltage space vector. While adding the three detecting vectors, sample the current to generate a sampling result. Then adjust the width of pulses generated by a pulse width modulator according to the sampling result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.