Power conversion system including an improved filter for attenua

Details Power conversion system including an improved filter for attenua Power conversion system including an improved filter for attenua

1989-03-13

1990-02-27

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Braking

363 39, 318759, H02P 318

Patent

active

049049186

ABSTRACT:
For connecting the d-c terminals of a voltage-source inverter to a direct current (d-c) power source, a d-c link capacitor is connected directly between the d-c terminals, a line capacitor is connected in parallel with the d-c link capacitor, and a series inductor is connected between the line capacitor and the source. A dynamic brake resistor and an electric power chopper are connected in series with one another across the line capacitor. Between the two capacitors, no inductance is provided but a resistor is inserted in the braking current path during electrical braking operation of the inverter.

REFERENCES:
patent: 3691439 (1972-09-01), Jensen et al.
patent: 3890551 (1975-06-01), Plunkett
patent: 4093900 (1978-06-01), Plunkett
patent: 4651266 (1987-03-01), Fujioka et al.

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