Estimation of CM Parasitic Capacitances in Front-end LLC Resonant DC-DC Converters
| Autor: | Ebrahim Farjah, Sepehr Karimi, Farshid Naseri, Jean-Luc Schanen, Teymoor Ghanbari |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
business.industry 020209 energy 020208 electrical & electronic engineering 02 engineering and technology Converters Noise (electronics) Electromagnetic interference law.invention Parasitic capacitance law EMI Power electronics 0202 electrical engineering electronic engineering information engineering Optoelectronics Transformer business Electrical conductor |
| Zdroj: | 2021 12th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC). |
| Popis: | Inter-winding parasitic capacitances of the transformer in LLC resonant DC-DC converters have a considerable impact on conductive electromagnetic interference, especially on the common-mode (CM) noise. The variations of environmental and operating conditions such as temperature, vibrations, and humidity can change the dielectric constant, which increases the value of parasitic capacitances. The real-time estimation of the parasitic capacitance is a nice solution to study CM parasitic capacitance and EMI emission in real operating conditions. In this paper, the parasitic capacitance relevant to the CM noise is estimated in real-time using unscented Kalman filter. Different simulation results are provided and discussed to demonstrate the correct performance of the proposed method in different operating conditions. |
| Databáze: | OpenAIRE |
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