Sliding mode control strategy for grid-connected inverters based on boundary layer

Abstract A sliding mode controller is designed to effectively track the reference current for characteristics of conventional grid-connected controllers that cannot perform static-free tracking. and aiming at jitter phenomenon controller, a boundary layer-based designed, which adopts traditional linear control inside layer outside layer. error limited certain range compensation term used improve problem slow speed. The proposed strategy validated by simulation using matlab software, results prove can achieve grid voltage in same frequency phase, proves effectiveness strategy.