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Renewable and Efficient Electric Power Systems
a-ghadimi.com6.6 Wind Turbine Generators 328 6.6.1 Synchronous Generators 328 6.6.2 The Asynchronous Induction Generator 329 6.7 Speed Control for Maximum Power 335 6.7.1 Importance of Variable Rotor Speeds 335 6.7.2 Pole-Changing Induction Generators 336 6.7.3 Multiple Gearboxes 337 6.7.4 Variable-Slip Induction Generators 337