대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1995년도 하계학술대회 논문집 A
- /
- Pages.71-73
- /
- 1995
PWM 인버터 전압원 구동에 의한 유도전동기해석
The analysis of induction motor drived by PWM voltage source inverter
- Kim, Do-Wan (Dept. Electrical Eng. Seoul Nat'l Univ.) ;
- Gwak, In-Gu (Dept. Electrical Eng. Seoul Nat'l Univ.) ;
- Lee, Hyang-Beom (Dept. Electrical Eng. Seoul Nat'l Univ.) ;
- Park, Il-Han (Dept. Electrical Eng. Sungsil Univ.) ;
- Hahn, Song-Yop (Dept. Electrical Eng. Seoul Nat'l Univ.)
- 발행 : 1995.07.20
초록
For the accurate analysis of induction motors driven by PWM-type inverter, a time-stepping finite element method is presented in this paper. Since the PWM-type source voltage is not sinusoidal, the time harmonic method can not be used. Therefore, we used a time-stepping method, where the space harmonics due to the slot structure can be analyzed and each time-step size is determined from each increase of rotor position. As a numerical example, an induction motor of 20 Hp, 3 phase and 6 pole is analyzed. First, numerical results of the time-stepping finite element analysis are compared to those of conventional equivated circuit analysts. Next, the stator current characteristic obtained from PWM voltage source is compared to that from sinusoidal voltage source.
키워드