Short Circuit Calculation in Power Systems Using MATLAB

Short circuit calculation in power systems is a complex and labor-intensive process. Utilizing computer programming for these calculations not only eliminates tedious manual computations but also ensures high precision. I selected MATLAB as the programming language because of its superior array handling capabilities that outperform other programming languages. Furthermore, MATLAB's GUI interface is intuitively simple and its development process is not complicated.

To better illustrate this point, let's discuss the short circuit calculation process in power systems in detail. In traditional manual calculation methods, it's necessary to progressively compute currents and voltages for each component, then determine short-circuit currents based on current-voltage relationships. This process is extremely cumbersome and requires significant time and effort. By implementing computer programming, we can write code to automatically calculate these values, eliminating the hassle of manual computations. Moreover, due to computers' high-precision calculation capabilities, we can obtain more accurate results through algorithmic implementations that handle complex matrix operations efficiently.

When selecting a programming language, I chose MATLAB. MATLAB is a powerful programming language particularly proficient in handling array and matrix operations. This enables more convenient processing of various power system data such as current, voltage, and impedance values. Compared to other programming languages, MATLAB demonstrates superior performance and efficiency in numerical computations, especially when implementing algorithms like impedance matrix inversion and symmetrical component analysis for three-phase systems.

Additionally, MATLAB provides an intuitive and simple GUI interface that makes the programming process more user-friendly. We can utilize the GUI interface to set input parameters, observe calculation results, and make necessary adjustments. Key functions like uicontrol and guide facilitate the creation of interactive interfaces where users can input system parameters and visualize results through plots and tables. This straightforward interface design enables more convenient short-circuit calculations while reducing operational complexity.

In summary, using computer programming for power system short-circuit calculations not only eliminates tedious manual computations but also achieves higher accuracy. Selecting MATLAB as the programming language allows full utilization of its array processing advantages and leverages its intuitive GUI interface to simplify the programming process. Through proper implementation of algorithms like the bus impedance matrix method and efficient coding practices, we can perform short-circuit calculations more efficiently, thereby improving work productivity.