Voltage Tracking of a Single-phase Inverter in an Islanded Microgrid

Voltage source inverters (VSI's) are generally used to interface with the distributed generators (DG) in microgrid. The voltage quality of the network is controlled on the basis of reference voltage tracking strategy of the VSI. In this paper, mathematical formula is derived for voltage tracking strategy, and its validity and robustness are demonstrated for both steady-state and transient conditions. Furthermore, the eectiveness of various controller has been analysed on the system response, and the eects of control gain parameters on the system characteristics are studied using root locus analysis. The performance of the system is found to be eective to track the reference grid voltage (Vg*)

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