MATLAB仿真分析电力系统短路故障 - 有效解决方案

le operation. Generally, short circuit faults can be divided into four common situations: three-phase short circuit, two-phase short circuit, single-phase ground short circuit, and two-phase ground short circuit. Traditional mathematical analysis of power system faults not only involves a large amount of work but also poses high risks. In this study, MATLAB software is used to simulate and analyze short circuit faults in power systems, which allows for a more accurate representation of real-world scenarios and reduces the risks associated with experimental work. Firstly, a blank model is created, and modules from the Simulink component library, which include power system modules, are selected to build power supply systems with infinite and finite power sources. The graphical representations of the four types of short circuit faults are generated, and mathematical calculations are performed to determine the magnitude of steady-state current and transient current for three-phase short circuit faults in two different power supply systems. The results of the simulation and calculations demonstrate that using MATLAB software for power system simulation is convenient, efficient, and highly reliable. Overall, the study highlights the importance of leveraging advanced software tools like MATLAB for simulating and analyzing power system faults, ultimately contributing to the safe and stable operation of power systems. Keywords: short circuit fault; MATLAB; power system.