**4. Three-Phase HPFA with Non-Linear Loads and D-STATCOM Devices**

For modeling the linear and non-linear loads for HPFA, the fundamental power flow solution is required. Hence, the algorithm consists of two parts. PartA illustrates the iterative procedure for FPFA with the D-STATCOM device and PartB illustrates the iterative procedure for HPFA with linear loads, non-linear loads, and D-STATCOM devices.

After developing the BNM and BRNM for the URDN, the iterative procedure is explained with the following steps.
