Variable pitch control unit and device thereof for wind driven generator
The invention provides a variable pitch control unit and a device thereof for a wind driven generator of an AC asynchronous motor. The device comprises a three-phase AC power source, a servo controller, a standby DC power source and an AC asynchronous motor, wherein the output end of the three-phase...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a variable pitch control unit and a device thereof for a wind driven generator of an AC asynchronous motor. The device comprises a three-phase AC power source, a servo controller, a standby DC power source and an AC asynchronous motor, wherein the output end of the three-phase AC power source is connected with the input end of a servo power source; the servo controller comprises the servo power source, a servo driver and a control switch subunit, the output end of the servo power source is connected with the input end of the servo driver, and the output end of the servo driver is connected with the AC asynchronous motor; the anode of the standby DC power source is connected with the anode of a switching diode, the cathode of the standby DC power source is connected with the input end of the servo driver, and the cathode of the switching diode is connected with the output end of the servo power source; the signal output end of the servo driver is connected with the control switch subunit |
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