Method for protecting a high-performance power converter and a p

Details Method for protecting a high-performance power converter and a p Method for protecting a high-performance power converter and a p

1999-08-09

2000-10-17

Wong, Peter S.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 54, 363 58, H02H 700

Patent

active

061341282

ABSTRACT:
A method and apparatus for protecting a high-performance power converter. The high-performance power converter comprises a mains power converter, which converts an alternating voltage from a mains power supply into a direct voltage and supplies the direct voltage to an intermediate direct voltage circuit. The intermediate direct voltage circuit is equipped with an intermediate circuit capacitor, and includes a second power converter which converts the direct voltage from the intermediate direct voltage circuit into an alternating voltage, whereby each of the mains power converter and the second power converter is set up as a bridge circuit and each contains a number of IGBTs (Insulated Gate Bipolar Transistors) arranged in pairs in bridge arms. Protection against destruction is achieved in that, when a destructive discharge of the intermediate circuit capacitor via one of the bridge arms, which has become unintentionally continuously conductive, other bridge arms in the power converters are specifically switched through by way of a relief break-through in order to limit the destruction.

REFERENCES:
patent: 4331994 (1982-05-01), Wirth
patent: 4672525 (1987-06-01), Horie et al.
patent: 4757435 (1988-07-01), Wood et al.
patent: 4959602 (1990-09-01), Scott et al.
patent: 5592371 (1997-01-01), Rajashekara et al.
Frede Blaabjerg and John K. Pedersen, "An Integrated High Power Factor Three-phase AC-DC-AC Converter for AC-machines Implemented in one Microcontroller", Jun. 20, 1993, pp. 285-292.

Affiliated with

Also associated with

Rating

Method for protecting a high-performance power converter and a p does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for protecting a high-performance power converter and a p, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for protecting a high-performance power converter and a p will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-475586