Abstract
Microgrids have special dynamic characteristics compared to the conventional grid and hence require special treatment. Large-scale penetration of renewable sources with largely uncertain, intermittent and fluctuation power output, continuous change of configuration and mode of operation, and low system inertia are some of the situations and challenges uniquely observed in microgrids. Such and other conditions result in the need for special way of addressing issues in the designing and implementation of microgrid dynamic control. This is covered in detail in this chapter. Causes, characteristics, and ways of handling dynamic disturbances in microgrids are discussed in this chapter. The chapter starts with an introductory description of dynamic disturbance and control. Possible causes of dynamic disturbance and the resulting changes in waveforms and system parameters are described. Some state-of-the-art techniques are presented with detailed formulations. Some advanced and innovative control strategies which can precisely fit the special requirements of microgrids are presented with the simulated and experimental results. The chapter ends with presenting experimental evaluation procedures and the results are included to verify the applicability of the presented techniques.
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