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Reactive power regulation

  • US 8,912,675 B2
  • Filed: 08/02/2010
  • Issued: 12/16/2014
  • Est. Priority Date: 08/02/2010
  • Status: Active Grant
First Claim
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1. A method of reactive power regulation in a wind park connected to an electrical grid:

  • the wind park comprising a plurality of wind turbines and a central reactive power control system, wherein at least a first portion of the plurality of wind turbines each comprise a local reactive power control system adapted to work in a central control mode and a local control mode, whereinthe central reactive power control system sends commands indicative of local reactive power demands to the local reactive power control systems in accordance with at least one measured variable of the grid, and whereinin a central control mode, the local reactive power control system operates the wind turbine to generate reactive power in accordance with the commands received from the central reactive power control system, and whereinin a local control mode, the local reactive power control system determines an amount of reactive power to be generated and controls the wind turbine to generate said amount of reactive power regardless of the commands received from the central reactive power control system.

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