Dynamic braking in controlled current motor drive systems

Details Dynamic braking in controlled current motor drive systems Dynamic braking in controlled current motor drive systems

1975-11-25

1977-08-02

Hohauser, Herman J.

Electricity: motive power systems

Braking

Dynamic braking

318212, H02P 312

Patent

active

040399141

ABSTRACT:
A current source power converter for an electric motor is comprised by a combined controlled rectifier and chopper which is coupled to a controlled-current inverter by a dc reactor. In the motoring mode the combined rectifier and chopper functions as a phase controlled rectifier to control the current magnitude. In the dynamic braking mode a line switch is opened and a braking resistor placed across the rectifier output, and the combined rectifier and chopper is operated as a chopper to control the average voltage across the braking resistor and thus the current magnitude during braking.

REFERENCES:
patent: 3365638 (1968-01-01), Risberg
patent: 3906314 (1975-09-01), Wiart

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