用于改善变动电网条件下并网逆变器稳定性和注入电能质量的等效电网阻抗主动抵消技术

An active grid impedance cancelator using the concept of series active filter to suppress the effect of the grid disturbance and stabilize the single-phase grid-connected inverters with an inductive-capacitive-inductive filter operating under variable grid condition is presented. Harmonic interaction between the inverter and the grid is thereby avoided owing to the cancelation of equivalent grid i...