TY - JOUR
T1 - Research of surge current for PMSM when power down-rejoining on
AU - Gao, Ya
AU - Liu, Wei Guo
AU - Luo, Guang Zhao
N1 - Publisher Copyright:
© 2017, Harbin University of Science and Technology Publication. All right reserved.
PY - 2017/3/1
Y1 - 2017/3/1
N2 - If the original asynchronous motor of engines is replaced by permanent magnet synchronous motors, the unpredictable surge current will emerge when power down-rejoining on. The causation is the high back EMF of permanent magnet arising from PMSM when engine is passing the switching phase insulator. Aiming at above-mentioned problems, the reasons was analyzed of causing transient surge current based on three-phase PMSM transient mathematical model in the process of power down-rejoining on. The analyzing process is based on the PWM voltage which takes voltage harmonics into account. According to the analyzing results, the control strategies and conditions during the power down- rejoining process were discussed. The control conditions include the given speed, the voltage amplitude and phase of inverter and so on. A control system was designed that makes the transient surge current minimum in the process of power down-rejoining on. By the comparative analysis of simulations and experiments, the validity of analysis for transient surge current mechanism is verified, and the positive function of optimizing control system is illustrated when reducing the transient surge current in power down-rejoining on.
AB - If the original asynchronous motor of engines is replaced by permanent magnet synchronous motors, the unpredictable surge current will emerge when power down-rejoining on. The causation is the high back EMF of permanent magnet arising from PMSM when engine is passing the switching phase insulator. Aiming at above-mentioned problems, the reasons was analyzed of causing transient surge current based on three-phase PMSM transient mathematical model in the process of power down-rejoining on. The analyzing process is based on the PWM voltage which takes voltage harmonics into account. According to the analyzing results, the control strategies and conditions during the power down- rejoining process were discussed. The control conditions include the given speed, the voltage amplitude and phase of inverter and so on. A control system was designed that makes the transient surge current minimum in the process of power down-rejoining on. By the comparative analysis of simulations and experiments, the validity of analysis for transient surge current mechanism is verified, and the positive function of optimizing control system is illustrated when reducing the transient surge current in power down-rejoining on.
KW - Optimizing control
KW - Permanent magnet synchronous motor
KW - Power down-rejoining on
KW - Sliding mode control
KW - The transient surge current
UR - http://www.scopus.com/inward/record.url?scp=85020039906&partnerID=8YFLogxK
U2 - 10.15938/j.emc.2017.03.008
DO - 10.15938/j.emc.2017.03.008
M3 - 文章
AN - SCOPUS:85020039906
SN - 1007-449X
VL - 21
SP - 55
EP - 62
JO - Dianji yu Kongzhi Xuebao/Electric Machines and Control
JF - Dianji yu Kongzhi Xuebao/Electric Machines and Control
IS - 3
ER -