Title:
SYNCHRONOUS ELECTRICAL POWER DISTRIBUTION SYSTEM STARTUP AND CONTROL
Document Type and Number:
WIPO Patent Application WO/2017/106216
Kind Code:
A3
Abstract:
A system may include a prime mover configured to provide mechanical energy to the system by spinning a shaft. The system further includes a synchronous AC generator mechanically coupled to the shaft, and an exciter mechanically coupled to the shaft and configured to output a field current for exciting the synchronous AC generator. The system also includes a number of synchronous electric motors electrically coupled to the AC generator and configured to drive one or more mechanical loads. A controller of the system is configured to establish and maintain a magnetic coupling between the synchronous AC generator and the synchronous electric motors by controlling a level of the field current during a ramped increase in rotation of the synchronous AC generator from zero rotational speed. The motors accelerate synchronously with the generator due to the magnetic coupling as the rotational speed of the generator increases.
Inventors:
BLACKWELDER MARK JON (US)
RANCURET PAUL M (US)
RANCURET PAUL M (US)
Application Number:
PCT/US2016/066422
Publication Date:
August 03, 2017
Filing Date:
December 13, 2016
Export Citation:
Assignee:
ROLLS ROYCE NAM TECH INC (US)
International Classes:
H02P9/00; H02J3/40; H02P1/54; H02P1/56; H02P5/74; H02P6/20; H02P9/08; H02P9/30
Foreign References:
| US20120313372A1 | 2012-12-13 | |||
| JP2004015980A | 2004-01-15 | |||
| US7116073B1 | 2006-10-03 | |||
| GB871188A | 1961-06-21 | |||
| US20120306458A1 | 2012-12-06 | |||
| US20090167231A1 | 2009-07-02 |
Attorney, Agent or Firm:
HILLIS, Sanders, N. (US)
Download PDF: