Title :
Dynamic Reduction of Large Power System in PSS/E
Author :
Yang, J.P. ; Cheng, G.H. ; Xu, Z.
Author_Institution :
Dept. of Electr. Eng., Zhejiang Univ., Hangzhou
Abstract :
This paper presents the procedure to establish the dynamic equivalent models of large-scale power systems in the PSS/E program. It consists of identification of coherent generators, aggregation of coherent generators and network reduction. Coherent generators are identified by means of time domain simulation. Aggregation of coherent generators based on the classical model is performed in this paper. Network is reduced through topological reduction. The procedure is illustrated on the East China Power Grid (ECPG) and simulations are performed to verify its accuracy, with fault applied on the equivalent system and the original system respectively. Results of the simulation show that the developed equivalent system has high accuracy in representing the dynamic characteristics of the original system. The developed equivalent model can be used for electromagnetic transient analysis, on-line dynamic security assessment and system control design
Keywords :
large-scale systems; power generation faults; power system dynamic stability; power system identification; power system simulation; time-domain analysis; PSS/E; aggregation identification network reduction; coherent generators identification; dynamic equivalent models; electromagnetic transient analysis; large-scale power system; on-line dynamic security assessment; system control design; system dynamic characteristics; system faults; time domain simulation; topological reduction; Electromagnetic analysis; Electromagnetic modeling; Large-scale systems; Power grids; Power system dynamics; Power system modeling; Power system simulation; Power systems; Security; Transient analysis; aggregation; coherency; dynamic equivalent; identification; large-scale power system; reduction;
Conference_Titel :
Transmission and Distribution Conference and Exhibition: Asia and Pacific, 2005 IEEE/PES
Conference_Location :
Dalian
Print_ISBN :
0-7803-9114-4
DOI :
10.1109/TDC.2005.1546815