The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 04, 2011
Filed:
Jul. 31, 2008
Yongqiang Lang, Ontario, CA;
Navid Reza Zargari, Cambridge, CN;
Manish Pande, Cambridge, CA;
Bin Wu, Toronto, CA;
Yongqiang Lang, Ontario, CA;
Navid Reza Zargari, Cambridge, CN;
Manish Pande, Cambridge, CA;
Bin Wu, Toronto, CA;
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Abstract
Power conversion apparatus and methods are presented for providing electrical power to a grid or other load in which a synchronous machine is driven by a wind turbine or other prime mover to provide generator power to a switching type current source converter (CSC), with a current source rectifier (CSR) of the CSC being switched to provide d-axis control of the synchronous machine current based on grid power factor feedback, and with a current source inverter (CSI) of the CSC being switched to provide leading firing angle control and selective employment of dumping resists to dissipate excess generator energy in a fault mode when a grid voltage drops below a predetermined level.