Improving transient stability of power system using UPFC with PID and POD controllers

Raajeshwar, E.; Jeevanandham, A.

doi:10.1109/icaetgt.2017.8341464

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…where K rd and K rq are positive constants that are chosen separately to acquire proper damping of fluctuations. By selecting U drk and U qrk as given by ( 12), (10) becomes:…”

Section: Design Of Dfig Controllermentioning

confidence: 99%

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Novel non‐linear control of DFIG and UPFC for transient stability increment of power system

Ghaedi

Abazari

Markadeh

2022

IET Generation Trans & Dist

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This paper offers novel non‐linear control of a doubly fed induction generator (DFIG) and unified power flow controller (UPFC) for transient stability increment with transient energy function (TEF) and sliding mode observer in a power system. First, the TEF technique is considered for the damping control in a power system with a synchronous generator (SG), DFIG, and UPFC, and then the controller time‐derivative signals are estimated by a second‐order sliding mode observer. The importance of the issue is in the employ of a complete UPFC model. Also, a one‐axis model is used for DFIG that is similar to the SG model. Another characteristic of the novel non‐linear technique is robust versus system topology changes and variable time delay of the control signals. To evaluate the performance of the novel non‐linear control method for increment transient stability, simulation studies are performed on a two‐machine connected to an infinite bus (TMIB), the IEEE 9‐bus, and the New England Standard 39‐bus power system. The results determine that the novel non‐linear control method decreases the first swing of fluctuations admissibly and enhancement stability margins considerably.

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“…where K rd and K rq are positive constants that are chosen separately to acquire proper damping of fluctuations. By selecting U drk and U qrk as given by ( 12), (10) becomes:…”

Section: Design Of Dfig Controllermentioning

confidence: 99%

“…A transient stability enhancement in a power system with UPFC has been investigated by POD and PID controllers [10]. In [11], the Control Lyapunov Function (CLF) and Power Oscillation Damping (POD) are utilized to dampen the fluctuations.…”

Section: Introductionmentioning

confidence: 99%