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arXiv · 2302.09342

Semi-Analytical Electromagnetic Transient Simulation Using Differential Transformation

Min Xiong·Rui Yao·Yang Liu·Kai Sun·Feng Qiu
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Abstract

For electromagnetic transient (EMT) simulation of a power system, a state-space-based approach needs to solve state-space EMT equations by using numerical integration methods, e.g., the Euler method, Runge-Kutta methods, and trapezoidal-rule method, at small time steps. The simulation can be slow on a power system having multiple generators. To speed up state-space-based EMT simulations, this paper proposes a Differential Transformation based semi-analytical method that repeatedly utilizes a high-order semi-analytical solution of the EMT equations at longer time steps. The proposed semi-analytical method is tested on the detailed EMT model of a four-generator two-area system. Simulation results show the significant potential of the proposed method to accelerate EMT simulations of power systems compared with traditional numerical methods.

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Min Xiong, Rui Yao, Yang Liu, Kai Sun, Feng Qiu. 2023-02-18. Semi-Analytical Electromagnetic Transient Simulation Using Differential Transformation. https://arxiv.org/abs/2302.09342

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