NDLI: Characterisation of large disturbance rotor angle and voltage stability in interconnected power networks with distributed wind generation

Content Provider	IET Digital Library
Author	Meegahapola, Lasantha Littler, Tim
Abstract	Wind generation in highly interconnected power networks creates local and centralised stability issues based on their proximity to conventional synchronous generators and load centres. This study examines the large disturbance stability issues (i.e. rotor angle and voltage stability) in power networks with geographically distributed wind resources in the context of a number of dispatch scenarios based on profiles of historical wind generation for a real power network. Stability issues have been analysed using novel stability indices developed from dynamic characteristics of wind generation. The results of this study show that localised stability issues worsen when significant penetration of both conventional and wind generation is present because of their non-complementary characteristics. In contrast, network stability improves when either high penetration of wind and synchronous generation is present in the network. Therefore network regions can be clustered into two distinct stability groups (i.e. superior stability and inferior stability regions). Network stability improves when a voltage control strategy is implemented at wind farms, however both stability clusters remain unchanged irrespective of change in the control strategy. Moreover, this study has shown that the enhanced fault ride-through strategy for wind farms can improve both voltage and rotor angle stability locally, but only a marginal improvement is evident in neighbouring regions.
Starting Page	272
Ending Page	283
Page Count	12
ISSN	17521416
Volume Number	9
e-ISSN	17521424
Issue Number	Issue 3, Apr (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/9/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2013.0406
Journal	IET Renewable Power Generation
Publisher Date	2014-11-04
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Centralised Stability Issue Control of Electric Power System Dispatch Scenario Distributed Power Generation Distributed Wind Generation Disturbance Stability Issue Enhanced Fault Ride-through Strategy Geographically-distributed Wind ReSource Harmonics Highly-interconnected Power Network Historical Wind Generation Inferior Stability Region Large-disturbance Rotor Angle Stability Characteristic Load Centres Local Stability Issue Localised Stability Issue Power Generation Control Power Generation Dispatch Power Generation Fault Power Supply Quality Power System Control Power System Dynamic Stability Real-power Network Rotors Stability Cluster Stability Indices Superior Stability Region Synchronous Generation Penetration Synchronous Generator Synchronous Machine Voltage Control Voltage Control Strategy Voltage Stability Characteristic Wind Farm Wind Generation Dynamic Characteristic Wind Generation Penetration Wind Power Plant
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

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