Motor drive control with a single current sensor using space vector technique
US7308192B2 · kind B2 · utility
12Cited by
2References
15Claims
0Family size
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Key dates
| Filing date | Dec 7, 2004 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | Jan 9, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/5395
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A drive system for a three phase brushless AC motor that is operative to optimize a transistor switching pattern to improve power output while allowing current measurement in all of the phases using a single sensor. This is achieved by defining a voltage demand vector where more than two states are required to meet a minimum state time requirement determined by the single sensor and calculating three or more state vectors that produce the demand vector while still allowing single current sensing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.