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Variable speed system, wind turbine and variable speed wind turbine system, process and apparatus for controlling generator power and processes for controlling the generator torque of a variable speed system and for synchronizing a variable speed system
Variable speed system, wind turbine and variable speed wind turbine system, process and apparatus for controlling generator power and processes for controlling the generator torque of a variable speed system and for synchronizing a variable speed system
"VARIABLE SPEED SYSTEM, WIND TURBINE AND VARIABLE SPEED WIND TURBINE SYSTEM, PROCESS AND APPARATUS TO CONTROL THE GENERATOR POWER AND PROCESSES TO CONTROL THE GENERATOR TORQUE OF A VARIABLE SPEED SYSTEM AND A VARIABLE SYSTEM. A variable speed system for use in systems such as wind turbines is described. The system comprises a wound rotor induction generator (620), a torque controller (623) and a proportional integral derivative (PID) step controller (1010). The torque controller controls the torque of the generator using field-oriented control and the PID controller performs pitch regulation based on the speed of the generator rotor.
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