An optimised design of controller for UPFC to improve the transient stability performance in power system

2013 ◽  
Author(s):  
K Mahesh Dash ◽  
Subham Sahoo ◽  
Sukumar Mishra
Keyword(s):  
Power System ◽  
Transient Stability ◽  
Stability Performance

scholarly journals Power System Damping Enhancement Using Combined Operation of Robust Energy Capacitor System and Power System Stabilizer

1970 ◽  
Vol 8 (2) ◽  
pp. 182-186
Author(s):  
Komsan Hongesombut ◽  
Naowarat Tephiruk
Keyword(s):  
Power System ◽  
Transient Stability ◽  
Damping Ratio ◽  
Stability Performance ◽  
The Stability ◽  
System Stabilizer ◽  
Stability Enhancement ◽  
Power System Oscillations ◽  
Fast Settling ◽  
Damping Controller

High damping ratio and fast settling time are very challenges for improving the stability performance in power system. In this paper, an energy capacitor system (ECS) is applied in a two-area multi-machine power system to provide the transient stability enhancement. The algorithm for designing the robust damping controller of the ECS is based on the loop shaping control. The results from the design are the control parameters of the ECS damping controller with the constraint that the size of the ECS must satisfy the criteria of damping consideration. From the simulation results, it can be found that the ECS can effectively enhance the damping of power system oscillations. Moreover, the combination of ECS and the existing power system stabilizers (PSSs) allows exceptional performance and more desirable size of ECS.

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