System and method for low speed control of polyphase AC machine
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United States of America Patent
Stats
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Nov 17, 2015
Grant Date -
Jun 20, 2013
app pub date -
Dec 19, 2012
filing date -
Dec 19, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method of starting a wind turbine generator of any type of polyphase AC machine, including, but not limited to, brushless DC or permanent magnet machines is disclosed. The machine starts from a dead stop or from low speed operation and is accelerated to the cut in speed for power production. The start-up is realized utilizing the common set of electrical conductors and the power converter also used for capturing the generated power. Under initial operation, the power converter executes a PWM modulation technique to drive the machine. Periodically, the PWM modulation is stopped to read the electrical position of the generator.
First Claim
Other Claims data not available
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International Classification(s)
- 2012 Application Filing Year
- A61K Class
- 11964 Applications Filed
- 9694 Patents Issued To-Date
- 81.03 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- A61K Class
- 31.06 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 17, 2027 |
