Multistep Frequency Response Optimized Integrators and Their Application to Accelerating a Power System Transient Simulation Scheme

TL;DR

This paper introduces new multistep frequency response optimized integrators and a prediction-based method to accelerate power system transient simulations without losing accuracy, with potential applications beyond power systems.

Contribution

It presents novel explicit and implicit multistep integrators and a prediction method that significantly speed up power system transient simulations while maintaining accuracy.

Findings

Case studies confirm the effectiveness of the prediction method.

Proposed integrators are general-purpose and applicable to other fields.

Acceleration achieved without compromising simulation accuracy.

Abstract

This paper proposes several explicit and implicit multistep frequency response optimized integrators considering first or second order derivative. A prediction-based method aiming at accelerating a novel power system transient simulation scheme without impacting its accuracy is further put forward utilizing the proposed numerical integrators and some others available in the literature. Case studies verify the effectiveness of the proposed prediction method. Although they are utilized to accelerate the simulation scheme in this paper, the proposed numerical integrators are in fact general-purpose and can be applied to other areas.