Photovoltaic Inverter Output Current Research of Adaptive Active Harmonic Compensation Device

With the continuous improvement of photovoltaic power generation technology, people has higher requirement on the performance of the photovoltaic inverter. Currently, PV Inverter Grid process of the home and abroad, because the inverter put DC power into AC power frequency electric use the inverter principle and PWM control technology inevitably produce harmonics problems at the sine wave inverter formed. According to this kind of harmonic interference problem, the adaptive in-place active harmonic compensation technology were proposed, this effectively suppress the harmonic pollution to power network, solved the PV inverter output harmonic and reactive power problems, effective purification of power grid, filled the domestic and foreign photovoltaic inverter without output current harmonic compensation gap.