用于降低并网光伏逆变器直流母线电容的串联电压补偿器建模与设计

A grid-tie solar inverter with a series voltage compensator for reducing the high-voltage dc-link capacitance is presented. The compensator obtains energy from the dc link to sustain the voltage on its dc side and generates an ac voltage to counteract the voltage ripple on the dc link. As the compensator processes small ripple voltage on the dc link and reactive power, it can be implemented with l...