| Autor: |
Mutovkin, Alexei, Yuhimenko, Vladimir, Schacham, Shmuel, Kuperman, Alon |
| Předmět: |
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| Zdroj: |
IEEE Transactions on Industrial Electronics; Aug2021, Vol. 68 Issue 8, p6881-6892, 12p |
| Abstrakt: |
This article focuses on improving the control structure of electronic capacitor (EC), formed by a bidirectional dc–dc converter terminated with small auxiliary capacitance. Typical application of such a system is mimicking the dynamic behavior of a bulk dc-ink capacitor while actually employing a component with much lower capacitance value. It was previously revealed that EC may be treated as output-voltage regulated wide-input-range converter feeding a bidirectional power load. Dual-loop voltage-current linear cascaded regulator, typically employed for EC terminal voltage control, imposes slow unstable mode when absorbing power from the dc-link. This article demonstrates that performing a transformation from voltage–current to power-energy domain by feedback linearization-based nonlinear control simultaneously eliminates the unstable mode and increases control bandwidth. Revealed findings are well-supported by simulations and experiments. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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