| Title |
Compensation of Temperature Characteristics for Capacitance Estimation of DC-link Capacitors |
| Authors |
Xingsi Pu ; Kyung-Hyun Kim ; 李Dong-Choon Lee ; 李Kyo-Beum Lee ; Jang-Mok Kim |
| DOI |
10.6113/TKPE/2010.15.5.387 |
| Keywords |
Capacitance; Estimation; Temperature effect; Thermister |
| Abstract |
This paper proposes a correction method of capacitance estimation considering the temperature effect for the DC-link capacitor banks in three-phase AC/DC/AC PWM converters. At first, operating temperature of the capacitors is detected and capacitance variation is corrected due to the temperature effect. Thermisters are used for sensing the temperature and voltage variation across the thermister is exploited to identify the capacitance change. The validity of the proposed method has been verified by experimental results. |