his paper present a voltage base frequency control (VBFC) for isolated microgrids The proposed controller attempts to control the frequency of the microgrid via the AVR. Frequency feedback to AVR changes voltage, consequently loads change due to the load sensitivity to the voltage, and finally load change provides positive damping or virtual capacity for reducing frequency deviation. The advantages of this method in comparison with others methods are 1) it does not need extra communication, 2) it helps increasing integration of renewable resources, 3) it provides fast and smooth frequency control, 4) it is based only on local frequency feedback, and 5) it can easily be used in any kind of microgrids. The test system model is based on a modified CIGRE benchmark and loads are voltage and frequency dependent. The performance of this method is simulated in PSCAD/EMTDC on the modified CIGRE model.

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