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Hybrid synchronization phase angle generation method

  • US 6,919,650 B2
  • Filed: 05/31/2002
  • Issued: 07/19/2005
  • Est. Priority Date: 05/31/2002
  • Status: Expired due to Fees
First Claim
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1. A synchronization phase angle generator for synchronizing an AC power source with a power grid, comprising:

  • a phase locked loop (PLL) controller which receives at least one voltage of the power grid and determines a frequency and a phase angle of the at least one voltage of the power grid; and

    a microprocessor-based controller which receives as input the frequency and the phase angle of the at least one voltage of the power grid and determines a phase angle of at least one output voltage of the AC power source.

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