To obtain the three-phase current via adjusting width of...

Details To obtain the three-phase current via adjusting width of... To obtain the three-phase current via adjusting width of...

2011-03-01

2011-03-01

Ip, Paul (Department: 2837)

Electricity: motive power systems

Induction motor systems

Primary circuit control

C318S400300, C318S701000, C318S721000, C318S729000, C318S727000

Reexamination Certificate

active

07898210

ABSTRACT:
After an AC motor generates a three-phase current, modulate the three-phase current to generate an original voltage space vector, and add three detecting vectors with a sum of zero after the original voltage space vector. While adding the three detecting vectors, sample the current to generate a sampling result. Then adjust the width of pulses generated by a pulse width modulator according to the sampling result.

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