DC offset compensator

Details DC offset compensator DC offset compensator

2005-01-18

2005-01-18

Martin, David (Department: 2837)

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Load control

C318S798000, C318S799000, C318S800000, C318S801000, C363S042000, C363S048000, C363S084000, C363S089000

Reexamination Certificate

active

06844690

ABSTRACT:
A dc offset compensator receives a three phase ac current signal as an input and provides a dc offset signal correction voltage as an output. The dc offset compensator comprises a processor configured to sample the ac current signal, generate a rotating vector (r) from the sample, extract a dc offset from the sample and to generate a dc offset signal correction voltage from the dc offset. A method of compensating for dc offset in a three phase ac current signal is also presented.

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