Open AccessDissipative Hamiltonian realisation and decentralised saturated control of multi‐machine multi‐load power systems
Author(s) -
Liu Yanhong,
Li Jianyong,
Ding Qingqing,
Chu Bing
Publication year - 2013
Publication title -
iet control theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.059
H-Index - 108
eISSN - 1751-8652
pISSN - 1751-8644
DOI - 10.1049/iet-cta.2013.0026
Subject(s) - dissipative system , control theory (sociology) , hamiltonian system , realisation , electric power system , hamiltonian (control theory) , feed forward , control system , computer science , control engineering , mathematics , engineering , physics , power (physics) , control (management) , mathematical optimization , mathematical analysis , electrical engineering , quantum mechanics , artificial intelligence
Using the energy‐based Hamiltonian function method, this study investigates the decentralised saturated excitation control of multi‐machine multi‐load power systems based on the structure preserving dynamic model. First, a constructive procedure is proposed for the dissipative Hamiltonian realisation of non‐linear differential algebraic systems and transform the power system to its equivalent dissipative Hamiltonian system. Constant feedforward control is proposed to adjust the system to the desired equilibrium point. Then, we put forward a decentralised saturated excitation controller using only the local information. Simulation results show that the proposed control scheme can effectively improve the transient stability of the power system.