Title :
Dynamical model of unified power flow controllers in load-flow analysis
Author :
Nguyen, T.T. ; Nguyen VL
Author_Institution :
Sch. of Electr., Electron. & Comput. Eng., Western Australia Univ., Crawlwey, WA
Abstract :
Based on the novel concept of interpreting the updated voltage solutions at each iteration in the Newton-Raphson (NR) load-flow analysis as dynamic variables, the paper develops a procedure for representing the unified power flow controllers (UPFCs) in the steady-state evaluation. Both the shunt converter and series converter control systems of a UPFC are modeled in their dynamical form with NR iterative step as the discrete independent variable in the load-flow analysis. The key advantage of the method developed is that of facilitating the process of constraint resolution during the NR solution sequence. Any priority in control functions pre-set in the UPFC controllers is automatically represented in the load-flow formulation. The method developed together with its software implementation is tested using a representative power network with UPFC
Keywords :
Newton-Raphson method; load flow control; power convertors; Newton-Raphson analysis; discrete independent variable; load-flow analysis; representative power network; series converter control systems; shunt converter control systems; steady-state evaluation; unified power flow controllers; Automatic control; Control system synthesis; Control systems; Equations; Load flow; Load flow analysis; Load modeling; Power system modeling; Steady-state; Voltage control; Dynamical model; Newton-Raphson load-flow; UPFC constraint resolution;
Conference_Titel :
Power Engineering Society General Meeting, 2006. IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0493-2
DOI :
10.1109/PES.2006.1709369
