Small-signal analysis is a technique used to study the behavior of a power system under small disturbances or variations around an equilibrium point. It helps in understanding the dynamic response of the system, especially its stability characteristics, by linearizing nonlinear equations to make them easier to analyze. This method is particularly important for evaluating how different components interact in multi-machine systems, control strategies in microgrids, and assessing the impact of renewable energy sources on system dynamics.
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