초록 ▼

A variable speed system for use in systems, such as, for example, wind turbines, is described. The system comprises a wound rotor induction generator, a torque controller and a proportional, integral derivative (PID) pitch controller. The torque controller controls generator torque using field orien

A variable speed system for use in systems, such as, for example, wind turbines, is described. The system comprises a wound rotor induction generator, a torque controller and a proportional, integral derivative (PID) pitch controller. The torque controller controls generator torque using field oriented control, and the PID controller performs pitch regulation based on generator rotor speed.

대표청구항 ▼

[ We claim:] [1.] A variable speed wind turbine system comprising:a wound rotor induction generator;a torque controller coupled to the generator to control generator torque using field oriented control; anda pitch controller coupled to the generator to perform pitch regulation based on generator rot

[ We claim:] [1.] A variable speed wind turbine system comprising:a wound rotor induction generator;a torque controller coupled to the generator to control generator torque using field oriented control; anda pitch controller coupled to the generator to perform pitch regulation based on generator rotor speed and operating independently of the torque controller.