Title:
DEVICE AND METHOD FOR STABLY STOPPING MOTOR
Document Type and Number:
WIPO Patent Application WO/2017/214972
Kind Code:
A1
Abstract:
Disclosed are a device and a method for stably stopping a motor. In this method, a first d-axis current reference value (id_ref1), a first q-axis current reference value (iq_ref1), and a first synchronous angle (Theta_fed) before a motor are stopped are set to be the initial values of a second d-axis current reference value (id_ref2), a second q-axis current reference value (iq_ref2) and a second synchronous angle (Theta_ref) for stopping the motor when stopping the motor. Moreover, when a normal control mode is changed to a stop braking mode, the d and q axes respectively use the same proportional integral controllers (4, 5), so that a severe current change and voltage change during the motor stopping are prevented, thereby smoothly stopping the motor without the occurrence of a pulsation or a reverse rotation of the motor before stopping.
Inventors:
LIU JUNFENG (CN)
ZHANG DONGHUA (CN)
XU TIEZHU (CN)
ZHANG DONGHUA (CN)
XU TIEZHU (CN)
Application Number:
PCT/CN2016/086157
Publication Date:
December 21, 2017
Filing Date:
June 17, 2016
Export Citation:
Assignee:
SHENZHEN INVT ELECTRIC CO LTD (CN)
International Classes:
H02P21/14
Foreign References:
| CN103986389A | 2014-08-13 | |||
| CN1285652A | 2001-02-28 | |||
| JP2014217192A | 2014-11-17 | |||
| CN103973173A | 2014-08-06 |
Attorney, Agent or Firm:
DHC IP ATTORNEYS (CN)
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