Improving Dynamic Performance of Low-Inertia Systems Through Eigensensitivity Optimization

An increasing penetration of renewable generation has led to reduced levels rotational inertia and damping in the power network. The consequences are higher vulnerability disturbances deterioration dynamic response system. To overcome these challenges, novel converter control schemes that provide virtual have been introduced, which raises question optimal distribution such devices throughout This paper presents a comprehensive framework for performance-based allocation converter-interfaced generators detailed low-inertia is achieved through an iterative, eigensensitivity-based optimization algorithm determines controller gains while simultaneously preserving small-signal stability ensuring ratio frequency after kept within acceptable limits. Two conceptually different problem formulations presented validated on modified version well known Kundur's two-area system as larger 59-bus South-East Australian