| Abstract |
This paper presents an analytical development for the Nyquist trajectory of the closed loop system of aVoltage Source Inverter with resonant control strategy. Both inner current loop and outer voltage loopare taken into account, and the interaction between them is studied. The stability boundaries dependingon different parameters are determined. Firstly, the system is modelled and analysed in continuoustime. Secondly, the analysis is conducted in the discrete time domain. A numeric study supported withgraphical representations is provided for complex analytic situations. |
