Novel Electro-Thermal Coupling Simulation Technique for Dynamic Analysis of HV (Hybrid Vehicle) Inverter

Author

Kojima, T. ; Nishibe, Y. ; Yamada, Y. ; Ueta, Takashi ; Torii, Kentaro ; Sasaki, Seishi ; Hamada, Kazuya

Author_Institution

PowerDevice Lab., Toyota Central &D Labs., Inc., Aichi

fYear

2006

fDate

18-22 June 2006

Firstpage

1

Lastpage

5

Abstract

This paper describes a novel electro-thermal coupling simulation technique mainly focused on the dynamic analysis of the HV inverter during WOT (wide open throttle) operation. This technique can predict the junction temperature of power devices installed within the power module accurately. This simulation technique is composed of an inverter circuit model including power semiconductor device models, a novel compact thermal model suitable for automotive power modules and motor model. Various information and conditions such as motor current, motor rotation speed, switching frequency and variable DC-link voltage are applied to the simulation for carrying out the WOT operation. The comparison between the simulated and measured results indicates that this method offers reasonable accuracy for the IGBT temperature estimation where the worst case error in the IGBT temperature is less than 10 deg-C. It takes 210 min to complete the WOT simulation with duration of 4 seconds

Keywords

automotive electronics; hybrid electric vehicles; insulated gate bipolar transistors; invertors; power semiconductor devices; HV inverter; IGBT; automotive power modules; compact thermal model; dynamic analysis; electro-thermal coupling simulation technique; hybrid vehicle inverter; inverter circuit model; junction temperature; motor current; motor rotation speed; power semiconductor device; switching frequency; temperature estimation; variable DC-link voltage; wide open throttle; Analytical models; Circuit simulation; Coupling circuits; Insulated gate bipolar transistors; Inverters; Multichip modules; Power semiconductor devices; Temperature; Vehicle dynamics; Vehicles;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2006. PESC '06. 37th IEEE

Conference_Location

Jeju

ISSN

0275-9306

Print_ISBN

0-7803-9716-9

Type

conf

DOI

10.1109/PESC.2006.1712076

Filename

1712076