Effect of inverter’s dead-time on the dynamic characteristics of Permanent Magnet Synchronous Motor systems

Author

Mingji, Liu ; ZhongQin, Cai ; Jing, Wang ; Xiangpeng, Wang

Author_Institution

Sch. of Electr. & Electron. Eng., North China Electr. Power Univ., Beijing

fYear

2008

fDate

17-20 Oct. 2008

Firstpage

1310

Lastpage

1315

Abstract

This paper studies the effect of the inverterpsilas dead time on the dynamic characteristics of the Permanent Magnetic Synchronous Motor (PMSM) systems. Considering the harmonic magnetic field, the state space model and transfer function are given for the PMSM system. Furthermore, the effect of the dead-time on the output voltage of inverter is analyzed. The mathematical model, considering the dead-time of inverter, is established for the PMSM system. The theoretical analysis shows that the effect of the dead time can be regarded as a perturbation of the systempsilas static gain. The perturbation bound of the equivalent gain is given in theory. The correctness of the analysis result in this paper is verified by experiments.

Keywords

invertors; permanent magnet motors; perturbation techniques; synchronous motor protection; dynamic characteristics; equivalent gain; harmonic magnetic field; inverter dead time; permanent magnet synchronous motor; perturbation bound; state space model; transfer function; DC motors; Hysteresis motors; Magnetic analysis; Mathematical model; Permanent magnet motors; Pulse width modulation inverters; Saturation magnetization; Synchronous motors; Torque control; Voltage; PMSM system; dead-time of inverter; nonlinearity; perturbation on equivalent gain;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-3826-6

Electronic_ISBN

978-7-5062-9221-4

Type

conf

Filename

4770925