Observer-based compensation for improving dynamic response of a boost PFC rectifier
| Autor: | Shiang-Hwua Yu, Li-Wen Liu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
business.industry 020208 electrical & electronic engineering Bandwidth (signal processing) Feed forward 02 engineering and technology Inductor law.invention Capacitor Electricity generation law Control theory Load regulation 0202 electrical engineering electronic engineering information engineering Electronic engineering Voltage regulation business Voltage |
| Zdroj: | ISIE |
| DOI: | 10.1109/isie.2017.8001348 |
| Popis: | A novel observer-based feedforward compensation method is proposed to improve the output voltage regulation of a boost power-factor-correction (PFC) rectifier. A feedback observer estimates the load current for use in the feedforward correction of the inductor current. The feedback gain of the observer is intimately related to the regulation error of the output voltage. Given required performance, an equation for choosing the observer feedback gain is presented. The proposed compensation scheme is verified on a 1.5-kW, 380-V boost PFC rectifier, showing significant improvement of load regulation capability with less than 1% of the maximum change in the mean output voltage for sudden 1-kW changes in the output power. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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