Steady-State Modeling of Static Synchronous Compensator and Thyristor Controlled Series Compensator for Power Flow Analysis

摘要

In this study, steady-state modeling of Static Synchronous Compensator (STATCOM) and Thyristor Controlled Series Compensator (TCSC) for power flow studies has been represented. STATCOM is modeled as a controllable voltage source in series with impedance and firing angle model for TCSC is used to control active power flow of the line to which TCSC is installed. Proposed model for TCSC takes firing angle as state variable in power flow formulation. To validate the effectiveness of the proposed models Newton-Raphson method algorithm was implemented to solve power flow equations in presence of STATCOM and TCSC. Case studies are carried out on 9-bus system to demonstrate the performance of the proposed models. Simulation results show the effectiveness and robustness of the proposed models; moreover the power solution using the Newton-Raphson algorithm developed incorporating firing angle model possesses excellent convergence characteristics.