Reachable Power Flow: Theory to Practice

Reachable power flow ( ReachFlow ) is a newly developed formal method for enclosing the complete set of uncertain power flow states. To enable ReachFlow 's transition from theory to practice, the paper makes three major contributions: (1) both small- and large- signal stability proofs for the o...

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Vydáno v:IEEE transactions on power systems Ročník 36; číslo 3; s. 2532 - 2541
Hlavní autoři: Zhou, Yifan, Zhang, Peng
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York IEEE 01.05.2021
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
Algorithms
Asymptotic stability
Differential equations
Distributed generation
Flow control
Flow stability
Formal method
Load flow
Mathematical model
Ordinary differential equations
parallel ReachFlow
Power flow
Power system stability
reachability
Reachability analysis
Reachable power flow
reduced-order ReachFlow
Stability analysis
Uncertainty
ISSN:0885-8950, 1558-0679
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Shrnutí:Reachable power flow ( ReachFlow ) is a newly developed formal method for enclosing the complete set of uncertain power flow states. To enable ReachFlow 's transition from theory to practice, the paper makes three major contributions: (1) both small- and large- signal stability proofs for the ordinary differential equation (ODE)-based power flow are devised to theoretically ensure the robustness of ReachFlow ; (2) a model-order-reduction-empowered ReachFlow (<inline-formula><tex-math notation="LaTeX">{ReachFlow}^R</tex-math></inline-formula>) algorithm is created for analyzing interested regions in large power systems; and (3) a parallel ReachFlow (<inline-formula><tex-math notation="LaTeX">{ReachFlow}^P</tex-math></inline-formula>) algorithm is established to scale up ReachFlow for the accurate analysis of very large power systems. Extensive case studies are performed on a series of test systems, ranging from a 33-bus microgrid to a 2,000-bus power system, to thoroughly verify the correctness, efficacy and practicality of ReachFlow in formally verifying microgrid and macrogrid power flows as well as power flow control strategies.
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ISSN:0885-8950
1558-0679
DOI:10.1109/TPWRS.2020.3031196