Open AccessMethod considering the dynamic coupling characteristic in power system for stability assessment
Author(s) -
Hu Zhen,
Li Xinran
Publication year - 2017
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2016.1270
Subject(s) - node (physics) , coupling (piping) , electric power system , power flow , voltage , stability (learning theory) , connection (principal bundle) , power (physics) , computer science , control theory (sociology) , topology (electrical circuits) , domain (mathematical analysis) , flow (mathematics) , time domain , engineering , mathematics , electrical engineering , mechanics , physics , machine learning , artificial intelligence , computer vision , mechanical engineering , mathematical analysis , structural engineering , control (management) , quantum mechanics
The passive fluctuation of the node voltage (NVPF) and the active fluctuation of node voltage (NVAF) are defined to analyse the dynamic coupling characteristic between the source, the network and the load. The NVPF indicates how the effect of come from by other nodes or regions, and the NVAF indicates the voltage impact on other nodes or region. Their combination can comprehensively reflect the coupling characteristic relationship of each part which is closely related to the power flow and the electrical connection. A method in non‐analytical complex domain is proposed to find this relationship. Finally, the method is validated by the simulations on a three‐bus system, the IEEE39‐bus system and an actual system.