26 – 28 June 2019 Shanghai, China More Info

Motor Drives and Motion Control

Wednesday, 27 June, 2018
Chairperson: Dr. Jianping Ying, Delta Electronics, China

10:00 Power analysis of effects of MOSFET intrinsic characteristics on motor drive application

Alan Wai-Keung Lun, Infineon Technologies Hong Kong Limited, China

The significant advantages of brushless DC (BLDC) motor render it to replace conventional brushed motors
in battery powered applications and stimulate interests in developing efficient motor drives with optimized
power MOSFETs. The influence of MOSFETs with different intrinsic properties on brushless DC (BLDC)
motor drive inverter with block-commutation control. A detail analysis on efficiency, power losses and
distribution on the effects of MOSFET intrinsic characteristics will be revealed in this paper.
10:25 Higher efficiency and power density of variable speed drives with new TRENCHSTOP™ IGBT7

Song Shen, Infineon Technologies(China) Co., Ltd, China

Improvement of power density and efficiency with the new TRENCHSTOP™ IGBT7 of INFINEON
Technology AG for variable speed drives
11:05 MiniSKiiP Dual Enables High Power Density Motor Drive up to 90kW

Yufeng Li, SEMIKRON Electronics(Zhuhai) Co. Ltd, China

This paper introduces a new 90kW motor drive solution based on Semikron MiniSKiiP Dual
module. In this new design, conventional bus bar and copper bar connections are replaced by just
one PCB on which all power components are integrated. Thanks to the spring contact technology
of MiniSKiiP family, a quick and easy assembly process can be realized. The new solution based
on MiniSkiiP Dual module makes the labor cost lower than the one using standard modules.
Compared with conventional design, the new solution can bring the benefits of a volume reduction
by 50% and a cost reduction up to 20%.
Dual SOGI-Network Based Current Ripple and Position Error
Fluctuation Elimination for PMSM Sensorless Drives

Guoqiang Zhang, Harbin Institute of Technology, China

With regard to voltage error caused by the inverter nonlinearity and the flux spatial harmonics, the d-q-axis currents suffer from the (6k)th harmonic ripple for the position sensorless drives. A dual adaptive vectorial filtering (AVF) harmonic decoupling network (HDN) based compensation scheme is proposed with the analysis of the inverter nonlinearity effect considering the dead time. A set of AVF-HDN is adopted to track the rotor position and speed information, eliminating the position error fluctuations; and meanwhile, another set of AVF-HDN is utilized to detect the voltage error in time, which is added to the output as a feedforward term for compensating the inverter nonlinearity, reducing the d-q-axis current ripples and improving the dynamic performance.