The low frequency solar inverter is designed for high-power photovoltaic systems and provides 10kW-100kW full-power low frequency inverters, which are suitable for industrial, commercial and large ground power stations. It adopts industrial frequency transformer technology, with high reliability and strong grid adaptability. The low-frequency architecture achieves electrical isolation through the transformer, has strong anti-interference ability, supports wide temperature operation from -40℃ to +55℃, and ensures stable output in extreme environments. Conversion efficiency ≥ 98.2%, MPPT voltage range 120-1000VDC, power factor 0.8-1.0 adjustable, supports three-phase/single-phase grid connection. It has smart grid synchronization technology and low voltage ride-through (LVRT) function, in line with IEEE 1547/CEI EN 50438 standards. IP65 protection level, built-in DC arc detection, anti-islanding protection and overload warning, modular design supports parallel expansion, suitable for photovoltaic power stations, energy storage systems and backup power supplies.