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Drooping Strategies for Paralleling Sources and their Effect on Electric Power System Stability
Technical Paper
2014-01-2113
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Stability is a great concern for the Electrical Power System (EPS) in the More Electric Aircraft (MEA). It is known that tightly controlled power electronic converters and motor drives may behave as constant power loads (CPLs) which may produce oscillations and cause instability. The paper investigates the stability boundaries for dc multi-source EPS under different power sharing strategies. For each possible strategy the corresponding reduced-order models are derived. The impedance criterion is then applied to study the EPS stability margins and investigates how these margins are influenced by different parameters, such as main bus capacitance, generator/converter control dynamics, cabling arrangements etc. These results are also illustrated by the root contours of reduced-order EPS models. Theoretical results achieved in the paper are confirmed by the time-domain simulations.
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Citation
Gao, F., Bozhko, S., and Asher, G., "Drooping Strategies for Paralleling Sources and their Effect on Electric Power System Stability," SAE Technical Paper 2014-01-2113, 2014, https://doi.org/10.4271/2014-01-2113.Also In
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