Phase substitution of spare converter for a failed one of parall

Details Phase substitution of spare converter for a failed one of parall Phase substitution of spare converter for a failed one of parall

1976-06-10

1977-08-02

Shoop, William M.

Electric power conversion systems

Current conversion

Having plural converters for single conversion

307 64, 363 53, H02M 700

Patent

active

040399257

ABSTRACT:
Failure detection and substitution of a spare module is provided in a system having a plurality of phase staggered modules connected in parallel to deliver regulated voltage from an unregulated source. Phase control signals applied to the active converter modules are applied to the spare module through NOR gates associated with and disabled by the power output of respective active modules such that failure of any one enables its phase control signal to be applied to the spare module, thus controlling the spare module to operate in the phase position of the failed module. A NAND gate detects when any one active module fails and enables a gate in the spare module, thus activating the spare module.

REFERENCES:
patent: 3703644 (1972-11-01), Thorborg
patent: 3823362 (1974-07-01), Bailey

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