Development of Electronic Capacitors In Hardware-in-the-Loop And Its Applications

Capacitors are vital components in electronic systems. They are used in grid connection filters, voltage regulation in DC-links, and general-purpose filters. This work addresses concerns associated with the common use of high-capacitance electrolytic capacitors in grid-connected photovoltaic micro-inverters and boost PFC rectifiers, proposing a reduction in required capacitance through a DC-DC converter. This capacitance reduction allows the use of capacitor technologies with higher temperature ratings or less strict environmental requirements. The control strategy emulates a real capacitance by manipulating the converter’s input current based on the capacitor model’s transfer function. Hardware-in-the-loop controller validation confirms the viability of this strategy.