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Patent Searching and Data


Title:
AIRCRAFT, AND OVER-VOLTAGE PROTECTION METHOD AND DEVICE FOR ELECTRONIC GOVERNOR THEREOF
Document Type and Number:
WIPO Patent Application WO/2018/099377
Kind Code:
A1
Abstract:
An aircraft, and over-voltage protection method and device for an electronic governor thereof. An electronic governor is used to control a motor. The method comprises the following steps: acquiring a direct current busbar voltage of an electronic governor (S1); if the direct current busbar voltage is greater than a first voltage threshold and less than or equal to a second voltage threshold, then adjusting, according to a difference between the direct current busbar voltage and the first voltage threshold, a control parameter of the electronic governor, such that the electronic governor controls, according to the adjusted control parameter, a motor to suppress a further increase of the direct current busbar voltage (S2), wherein the second voltage threshold is greater than the first voltage threshold; and if the direct current busbar voltage is greater than the second voltage threshold, then controlling the electronic governor to terminate an output, such that the electronic governor controls the motor to stop running (S3). In this way, the present invention enables suppression of energy fed back by a motor and propeller, and prevents the direct current busbar voltage from continuously increasing, thus limiting the busbar voltage within a safe range, and preventing damage to electrical elements.

Inventors:
YU JIANGTAO (CN)
Application Number:
PCT/CN2017/113395
Publication Date:
June 07, 2018
Filing Date:
November 28, 2017
Export Citation:
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Assignee:
GUANGZHOU XAIRCRAFT TECH CO LTD (CN)
International Classes:
B64D27/24; H02P29/028; H02H3/20; H02H7/00
Foreign References:
CN106655979A2017-05-10
CN105449639A2016-03-30
CN1354556A2002-06-19
CN103227605A2013-07-31
US20150137786A12015-05-21
US20070013338A12007-01-18
Other References:
See also references of EP 3550720A4
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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