Double-rotor pneumatic electric machine and variable speed constant frequency excitation control system thereof

Abstract

A wind-driven motor of double-rotator variable speed and constant frequency type is prepared as connecting exciter with generator main body in series way through master driving shaft of unit master wind wheel, setting permanent magnet external rotator and exciter internal rotator to be relatively rotating mode, coupling sub-driving shaft driven by wind sub-wheel with master driving shaft driven by master wind wheel on the same shaft in mode of mutual rotation, setting rotation speed measurement units on both said wind wheels for transmitting rotation signals to control unit.

Description

technical field

[0001] The invention relates to a wind power generator, in particular to a series permanent magnet variable-speed constant-frequency excitation dual-rotor wind generator and an excitation control system with the wind generator. Background technique

[0002] Known technology such as Chinese patent CN200510022771.1 discloses a variable-speed constant-frequency method for wind power generation, which is characterized in that first, the speed of the wind turbine rotor is increased through the speed-increasing gearbox, and then the input power generated by the variable speed is input into the differential The input shaft of the permanent magnet motor is divided or merged by the differential mechanism of the differential permanent magnet motor to generate power flow into the stator winding of the differential permanent magnet motor through the feeder to realize constant speed and constant frequency power generation to the power grid, so as...

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