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A current source inverter feeding an induction motor

  • A.requires no dc link between the rectifier and the inverter
  • B.imposes the current waveform on the machine
  • C.imposes the voltage waveform on the machine and lets the current follow
  • D.cannot control the frequency applied to the machine at all

Answer: B

A large link inductor makes the source stiff in current, and the machine voltage is whatever the machine and the imposed current produce. The arrangement is robust and inherently regenerative but is now largely confined to very large drives.

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