| 摘要 |
PURPOSE: A pitch control system and method of an aerogenerator which produces compensation pitch angle are provided to prevent generator rotor speed increase due to the system low voltage by controlling the rotator velocity or variable frequency of a generator. CONSTITUTION: A pitch control system of an aerogenerator comprises a generator comparison part, a standards pitch angle output part(20), a pitch angle compensation output part(40) and a pitch servo part(30). The generator comparison part calculates an error signal based on the measurement signal of the generator and the reference signal. The standards pitch angle output part produces the standards pitch angle by using the error signal. The pitch angle compensation output part produces the compensation pitch angle. |
