Generator reactive power limits and voltage stability

Generator reactive power limit is a key factor in voltage instability. When the field or armature current limit becomes active, the generator reactive power limit becomes voltage dependent. These operational limits and the shifting between field limit and armature limit, are fully investigated. Furt...

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Main Authors: Efthymiadis, A.E, Guo, Y.-H
Format: Conference Proceeding
Language:English
Subjects:
Control of electric power systems
Control system analysis and synthesis methods
Generating stations and plants
Power and energy control
Power system management, operation and economics
Stability in control theory
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Guo, Y.-H
description Generator reactive power limit is a key factor in voltage instability. When the field or armature current limit becomes active, the generator reactive power limit becomes voltage dependent. These operational limits and the shifting between field limit and armature limit, are fully investigated. Further, careful examination of generator reactive power characteristics, reveals the effect of generator reactive power capability on system voltage stability. It is shown that a generator can be active or passive in supporting voltage stability, even when its reactive power is limited. An indicator is proposed for identifying critical generators, based on this observation.
doi_str_mv 10.1049/cp:19960263
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ispartof Fourth International Conference on Power System Control and Management, 1996, p.196-199
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subjects Control of electric power systems
Control system analysis and synthesis methods
Generating stations and plants
Power and energy control
Power system management, operation and economics
Stability in control theory
title Generator reactive power limits and voltage stability
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