Title :
A novel construction method of decentralized systems and stability analysis for bulk power system
Author :
Lian, S. ; Minami, S. ; Morii, S. ; Kawamoto, S.
Author_Institution :
Dept. of Electr. & Inf. Syst., Osaka Prefecture Univ., Sakai, Japan
Abstract :
A novel construction method of decentralized systems for bulk power system is proposed. Firstly, a bulk power system is exactly rewritten into a one-machine one-load decentralized system by the power flow calculation at each generator-bus, and the one-machine one-load system with a middle load is also rewritten into an equivalent system without the middle one. Next, a three-machine and a longitudinal five-machine system models are treated as its application, and the transient stability for each decentralized system of the longitudinal one is discussed by the equal-area criterion. Finally, it is concluded that the transmission line impedance of the equivalent decentralized system can be obtained for each generator without approximation, and the transient stability can be analyzed.
Keywords :
distributed power generation; load flow; power system transient stability; power transmission lines; bulk power system stability analysis; decentralized system construction method; generator-bus; longitudinal five-machine system model; one-machine one-load decentralized system; power flow calculation; three-machine model; transmission line impedance; Distributed power generation; Load flow; Power generation; Power system analysis computing; Power system modeling; Power system stability; Power system transients; Power transmission lines; Stability analysis; Stability criteria; Decentralized control; Decentralized system; Dynamic load; Electric power system; Nonlinear control; Transient stability;
Conference_Titel :
Power & Energy Society General Meeting, 2009. PES '09. IEEE
Conference_Location :
Calgary, AB
Print_ISBN :
978-1-4244-4241-6
DOI :
10.1109/PES.2009.5275291
