Smooth Rate Limiter Model for Power System Stability Analysis and Control

TL;DR

This paper introduces a smooth Rate Limiter model for power system stability that accurately replicates traditional RL behavior and can be adapted for improved dynamic control, demonstrated through simulations.

Contribution

A novel smooth RL model that integrates derivative bounds into eigenvalue analysis and enhances control performance in power systems.

Findings

Model accurately replicates non-smooth RL behavior

Enables eigenvalue-based stability analysis with derivative bounds

Improves dynamic control in power system simulations

Abstract

The letter proposes a smooth Rate Limiter (RL) model for power system stability analysis and control. The proposed model enables the effects of derivative bounds to be incorporated into system eigenvalue analysis, while replicating the behavior of conventional non-smooth RLs with high fidelity. In addition, it can be duly modified to enhance the system's dynamic control performance. The behavior of the proposed model is demonstrated through illustrative examples as well as through a simulation of the New York/New England 16-machine 68-bus system.