NDLI: Inter-area oscillation damping with non-synchronised wide-area power system stabiliser

Content Provider	IET Digital Library
Author	Patel, Abhilash Ghosh, Sandip Folly, Komla A.
Abstract	One of the major issues in an interconnected power system is the low damping of inter-area oscillations which significantly reduces the power transfer capability. A speed deviation-based wide-area power system stabiliser (WAPSS) is known to be effective in damping inter-area modes which use feedback from remote locations. However, the involvement of wide-area signals gives rise to the problem of time delay, which may degrade the system performance. The delay in synchronised and non-synchronised feedback to WAPSS can have alternate performances. The effect of delays in such WAPSS with two types of feedback is studied and controllers are synthesised using the H ∞ control with regional pole placement to ensure adequate dynamic performance. To show the effectiveness of the proposed approach, two power system models have been used for the simulations. It is shown that the controllers designed based on the non-synchronised signals are more robust to time-delay variations than the controllers using the synchronised signal.
Starting Page	3070
Ending Page	3078
Page Count	9
ISSN	17518687
Volume Number	12
e-ISSN	17518695
Issue Number	Issue 12, Jul (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/12/12
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2017.0017
Journal	IET Generation, Transmission & Distribution
Publisher Date	2018-03-28
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Control of Electric Power System Control System Analysis Control System Synthesis Damping Feedback H∞ Control Inter-area Oscillation Interarea Mode Interconnected Power System Nonsynchronised Feedback Nonsynchronised Signal Nonsynchronised Wide-area Power System Stabiliser Optimal Control Power System Control Power System Economics Power System Interconnection Power System Managemen Power System Measurement Power System Model Power System Operation Power System Stability Power Transfer Capability Robust Control Speed Deviation-based Wide-area Power System Stabiliser Stability in Control Theory Synchronisation Synchronised Signal Synthesis Method System Performance Time Delay Time-delay Variations WAPSS Wide-area Signal
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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