Title :
Dynamic Modeling and Transient Stability Simulation of Asynchronized Generators in Power Systems
Author :
Zhao, Xia ; Zhou, Jiaqi ; Li, Wenyuan
Author_Institution :
Coll. of Electr. Eng., Chongqing Univ., Chongqing
Abstract :
This paper presents a dynamic model of asynchronized generator (ASG) for transient stability studies. With this dynamic model, ASG can be represented in various levels of detail, ranging from the constant flux linkage model to the six-order model with a representation of field circuits, damper windings and field saturation. The model proposed has been implemented in a time domain transient simulation program based on the Newton method and trapezoidal integration rule. The WECC 9-bus 3-machine system is used as a base case and modified to simulate multimachine power systems including ASGs. Transient stability of the system is examined and compared using the following three cases: (i) including synchronous generators only, (ii) including ASGs only, and (iii) including both synchronous and asynchronized generators. Simulation results demonstrate that ASGs in power systems can greatly improve transient stability of the overall system.
Keywords :
Newton method; asynchronous generators; machine windings; power system simulation; power system transient stability; time-domain analysis; Newton method; WECC 9-bus 3-machine system; asynchronized generators; constant flux linkage model; damper windings; power systems dynamic modeling; time domain transient simulation program; transient stability simulation; trapezoidal integration rule; Circuit simulation; Circuit stability; Couplings; Power generation; Power system dynamics; Power system modeling; Power system simulation; Power system stability; Power system transients; Synchronous generators; Asynchronized generator; dynamic modeling; power system; transient stability;
Conference_Titel :
Power System Technology, 2006. PowerCon 2006. International Conference on
Conference_Location :
Chongqing
Print_ISBN :
1-4244-0110-0
Electronic_ISBN :
1-4244-0111-9
DOI :
10.1109/ICPST.2006.321630