The interaction between voltage-source inverter and static var compensator(SVC) may cause instability in an islanded micro-grid.In order to solve these problems,taking a low-voltage micro-grid for example,we established output impedance models of SVC and voltage-source inverter,and studied the interaction mechanism between SVC and voltage-source inverter.The results of Nyquist stability criterion and admittance ratio analysis show that stabilization of single SVC or voltage-source inverter is not sufficient...