Capacitance Estimation Method of DC-Link Capacitors for BLDC Motor Drive Systems
| Autor: | Yong-Hyu Kim, Jang-Mok Kim, June-Ho Park, Jong-Joo Moon |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Braking chopper Engineering business.industry 020208 electrical & electronic engineering Condition monitoring Hardware_PERFORMANCEANDRELIABILITY 02 engineering and technology 01 natural sciences Capacitance DC motor law.invention Capacitor Motor drive Hardware_GENERAL Control theory law 0103 physical sciences Hardware_INTEGRATEDCIRCUITS 0202 electrical engineering electronic engineering information engineering Current sensor Electrical and Electronic Engineering business Voltage |
| Zdroj: | Journal of Electrical Engineering and Technology. 11:653-661 |
| ISSN: | 1975-0102 |
| DOI: | 10.5370/jeet.2016.11.3.653 |
| Popis: | This paper proposes a capacitance estimation method of the dc-link capacitor for brushless DC motor (BLDCM) drive systems. In order to estimate the dc-link capacitance, the BLDCM is operated in quadrant-II or -IV among four-quadrant operation. Quadrant-II and -IV are called reverse braking and forward braking, respectively. During the braking operation of the BLDCM, the capacitor is charged by the phase current and then the voltage is increased during the braking operation time. The capacitor current and voltage can be obtained by using the phase current sensor of BLDCM and the dc-link voltage sensor. The capacitance and be easily obtained by the voltage equation of the capacitor. The proposed method guarantees the reliable and simple calculation of the dc-link capacitance without additional hardware system except several the sensors already installed for the motor control system. The effectiveness of the proposed method is verified through both the simulation and experimental results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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