IEEE-118 Standard Test System Post-Processing Data Code Implementation

In this document, we present the implementation of post-processing data code for the IEEE-118 standard test system. This system serves as one of the fundamental power system simulation programs, comprising 118 nodes where each node corresponds to either a generator or load within the electrical network. The test system enables comprehensive studies of power system operational characteristics, stability analysis, and interactions between generators and loads. The implementation typically involves MATLAB or Python code structures that handle bus admittance matrix formation, power flow calculations, and contingency analysis algorithms. Significant implementation challenges include handling the large-scale system topology through sparse matrix operations and implementing Newton-Raphson or fast-decoupled power flow methods for efficient computation. It's important to note that due to the system's substantial scale, both code development and data analysis require considerable computational resources and implementation effort, particularly when extending the base code for dynamic simulations or security assessment applications.