Rotary phase converter

Details Rotary phase converter Rotary phase converter

1991-02-05

1993-02-16

Sterrett, Jeffrey L.

Electric power conversion systems

Phase conversion without intermediate conversion to d.c.

By induction-type converter

363153, 363155, H02M 506

Patent

active

051876540

ABSTRACT:
A rotary phase converter for connection to a single AC power source intended to supply triphase current to a triphase electrical load with minimum current and voltage imbalances. Furthermore, it is not necessary to adjust the equipment as the load changes on the overall range.
The phase converter embodies an induction machine acting as rotary phase-shifter and a compensation circuit containing passive elements only. Another version with additional features for improved efficiency is also shown.
Moreover, because of the current symmetry available, this phase converter can also be connected to a triphase power source to supply a single-phase load.

REFERENCES:
patent: 2467863 (1949-04-01), Short
patent: 2480576 (1949-08-01), Helber
patent: 2526858 (1950-10-01), Epstein et al.
patent: 2546021 (1951-03-01), Sonnemann
patent: 3809980 (1974-05-01), Nottingham
patent: 3866097 (1975-02-01), Anzai et al.
patent: 4137488 (1979-01-01), Sibalis
patent: 4249237 (1981-02-01), Ronk et al.
patent: 4418309 (1983-11-01), Bartlett
patent: 4719560 (1988-01-01), Ford
patent: 4901213 (1990-02-01), Bessho et al.

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