System and method for fault protection for permanent magnet...

Details System and method for fault protection for permanent magnet... System and method for fault protection for permanent magnet...

2007-10-02

2007-10-02

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Limitation of motor load, current, torque or force

C361S031000

Reexamination Certificate

active

11189177

ABSTRACT:
A fault protection system and method of fault protection for permanent magnet machine (PMM)-based systems that utilize machine neutral decoupling (MND) to shut down a shorted winding and/or to isolate a short-circuit fault to prevent damage to a permanent magnet machine and to any downstream components are provided. The invention may be used for high-reactance and/or high current PMM-based systems, such as are commonly found in industrial and aviation applications.

REFERENCES:
patent: 4806839 (1989-02-01), Nagato et al.
patent: 6297573 (2001-10-01), Roth-Stielow et al.
patent: 6320731 (2001-11-01), Eaves et al.
patent: 6577086 (2003-06-01), Sebastian
patent: 6750576 (2004-06-01), Ehrhart et al.
patent: 6759823 (2004-07-01), Witzig
patent: 6965206 (2005-11-01), Kamen et al.

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