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Renewable energy power generation systems

  • US 8,823,212 B2
  • Filed: 02/15/2013
  • Issued: 09/02/2014
  • Est. Priority Date: 11/25/2011
  • Status: Active Grant
First Claim
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1. A modular adjustable power factor renewable energy inverter system, the system comprising:

  • a plurality of inverter modules, each inverter module having a dc power input and an ac power output, each inverter module further comprising at least one reactive element switchable to be connected to the ac power output of the inverter module;

    a common grid power feed coupled to the ac power outputs of the plurality of inverter modules; and

    a power factor controller for controlling a dissipation power factor of said inverter system, wherein said power factor controller is configured to;

    monitor the ac power provided to said common grid power feed by each of the inverter modules to determine a total ac power provided to said common grid power feed by said plurality of inverter modules;

    determine a number of said inverter modules to control, dependent on a proportion of a maximum power output of said inverter system represented by said total ac power provided to said common grid power feed; and

    control said determined number of inverter modules to switch said reactive element into respective said ac power output to control a displacement power factor of said inverter system.

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