Simulation of Transformer Inrush Current During No-Load Closing in Power Systems

In power systems, transformer inrush current during no-load closing is a common phenomenon. To better understand the characteristics of inrush current, we can conduct simulation experiments. In these experiments, we can configure different closing time parameters to observe the waveform patterns of inrush current. The implementation typically involves setting up a transformer model with magnetic saturation characteristics and using controlled switching elements to simulate various closing angles. Additionally, we can perform harmonic analysis using Fast Fourier Transform (FFT) algorithms to comprehensively examine the harmonic components present in the inrush current. Such simulation experiments help us better understand the inrush current phenomenon in power systems and provide valuable references for optimized power system design. The code implementation may include functions for parameter configuration, waveform generation, and harmonic spectrum calculation to facilitate detailed technical analysis.