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Active filter for power distribution system with selectable harmonic elimination

  • US 6,882,549 B2
  • Filed: 03/21/2001
  • Issued: 04/19/2005
  • Est. Priority Date: 03/21/2001
  • Status: Expired due to Fees
First Claim
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1. A power distribution system comprising:

  • an ac power source;

    a power bus connected to the ac power source;

    a capacitor bank shunt-connected to the power bus; and

    an active filter shunt-connected to the power bus, the active filter including an inverter, an inverter control and current sensors, each current sensor sensing current flowing through a corresponding capacitor of the capacitor bank, the inverter control, in response to the current sensors, controlling the inverter to inject harmonic currents into the power bus.

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