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Integrated control system and method for controlling mode, synchronization, power factor, and utility outage ride through for micropower generation systems

  • US 6,411,065 B1
  • Filed: 08/20/2001
  • Issued: 06/25/2002
  • Est. Priority Date: 08/26/1998
  • Status: Expired due to Term
First Claim
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1. A method of controlling real and reactive power developed by a main inverter in an electrical power generation control device, comprising the steps of:

  • sampling the three-phase currents output from said inverter, transforming the sampled three-phase current data to two-phase current data, transforming the two-phase current data to a rotating reference frame, controlling an output voltage according to a comparison result between a DC reference signal having a real and a reactive reference signal component, transforming the output voltage to a stationary reference frame, transforming the stationary reference frame output voltage to a three-phase reference signal, and controlling said inverter based on the three-phase reference signal, wherein the DC reference signal designates the real and reactive power output by the controlled inverter.

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