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Inverter for a distributed power generator

  • US 9,553,500 B2
  • Filed: 02/05/2014
  • Issued: 01/24/2017
  • Est. Priority Date: 02/20/2009
  • Status: Active Grant
First Claim
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1. A compensator, comprising:

  • an input that receives a signal corresponding to a voltage source inverter input voltage or a current source inverter input current and generates a compensation signal representing a deviation of the voltage source inverter input voltage or the current source inverter input current from a DC value;

    an input that receives a pulse width modulation reference signal and modifies the pulse width modulation reference signal according to the compensation signal, and produce a modified pulse width modulation reference signal; and

    an output that provides the modified pulse width modulation reference signal to a pulse width modulator;

    wherein the modified pulse width modulation reference signal controls the pulse width modulator such that a harmonic in a voltage source inverter output current or a current source inverter output current is substantially reduced;

    wherein the harmonic arises from voltage source inverter input voltage oscillation or current source inverter input current oscillation.

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