Power Flow Calculation Using PQ Method in Power Systems

This program implements the PQ method for power system load flow calculation. Although the computation results are correct, the graphical output is inaccurate. To fix this issue, consider implementing the following modifications in the code: 1. Validate input data integrity. Ensure all power system parameters (such as bus admittance matrix, power injections, and voltage magnitudes) are correctly formatted and loaded into the program. Implement data type checks and range validation for numerical inputs. 2. Verify the calculation algorithms. The PQ method typically involves iterative solutions of power flow equations using Newton-Raphson or Gauss-Seidel methods. Review the convergence criteria, Jacobian matrix calculations (for Newton-Raphson), or acceleration factors (for Gauss-Seidel) to ensure mathematical accuracy. 3. Debug the plotting functionality. The graphical output may require adjustments to MATLAB's plotting commands (e.g., plot, subplot, or custom visualization functions). Check coordinate scaling, legend labels, and data mapping between calculation results and visualization parameters. Consider implementing real-time visualization updates during iterative calculations. After implementing these debugging steps, the program should generate correct graphical representations. Additionally, optimize the code structure by vectorizing loops, preallocating arrays, and implementing error handling to enhance computational efficiency and stability for large-scale power system networks.