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Real-time calculation of power system bus voltage using a hybrid approach combining the Newton-Raphson method and dynamic programming
IEEJ transactions on electrical and electronic engineering, 2015-10, Vol.10 (S1), p.S34-S41
Huang, Wei-Tzer
Yao, Kai-Chao
Wu, Chun-Ching
2015
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Huang, Wei-Tzer
Yao, Kai-Chao
Wu, Chun-Ching
Titel
Real-time calculation of power system bus voltage using a hybrid approach combining the Newton-Raphson method and dynamic programming
Ist Teil von
IEEJ transactions on electrical and electronic engineering, 2015-10, Vol.10 (S1), p.S34-S41
Ort / Verlag
Hoboken: Wiley Subscription Services, Inc., A Wiley Company
Erscheinungsjahr
2015
Quelle
Wiley-Blackwell Journals
Beschreibungen/Notizen
The calculation of the magnitudes and phase angles of the bus voltage is a challenging task in real‐time applications for power systems. Voltage profile, which denotes the present conditions of a power system, is determined by executing the traditional AC power flow program or by searching the supervisory control and data acquisition system. The AC power flow program is not suitable for several real‐time applications, such as contingency analysis and security control calculations, because of its complexity and convergence problems. Fast computation is the major concern in such applications. In this paper, a new method based on sensitivity factors, referred to as Jacobian‐based distribution factors (JBDFs), is proposed for calculating the magnitudes and phase angles of bus voltages. This method requires setting up JBDFs and deriving optimal solution paths of bus voltage for non‐swing buses through dynamic programming under base‐case loading conditions. Under real‐time conditions, the proposed method initially calculates real and reactive power line flows via JBDFs, and then computes the voltage magnitudes and phase angles of non‐swing buses through the derived optimal solution paths. The excellence of the proposed hybrid calculation method is verified by IEEE test systems. Simulation results demonstrate that the proposed method exhibits fast computation and high accuracy. Thus, the method is suitable for real‐time applications. © 2015 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.
Sprache
Englisch
Identifikatoren
ISSN: 1931-4973
eISSN: 1931-4981
DOI: 10.1002/tee.22162
Titel-ID: cdi_proquest_miscellaneous_1762106162
Format
–
Schlagworte
bus voltage
,
Data buses
,
dynamic programming
,
Dynamical systems
,
Electric potential
,
Electric power generation
,
Mathematical analysis
,
Mathematical models
,
Newton-Raphson method
,
optimal path
,
Real time
,
real-time application
,
sensitivity factors
,
Voltage
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