DocumentCode :
3566848
Title :
Stabilization and energy management in a DC network by switching between "regular"and "singularly perturbed"controllers
Author :
Fayaz, Akram M.
Author_Institution :
E3S - Control Dept., Ecole Super. d´Electricite (Supelec), Gif-sur-Yvette, France
fYear :
2014
Firstpage :
3706
Lastpage :
3712
Abstract :
In this paper a switching control law, achieving both stabilization and optimal energy management in a DC network, containing a reversible load and a storage device, is proposed. When the reversible load becomes supplier, the closure of a diode en series with the main source, avoid the energy flow towards it. However, this closure disconnects the source\´s mesh containing "dynamic elements" from the network and causes a drastic change in its topology and its dynamic dimension. A control law stabilizing the "full network" may fail to stabilize the "reduced network" and vice-versa. In the proposed approach, a control law is designed for each topology and a stability preserving switching is performed between them. The switching is driven by the energy flow direction. For the conduction phase of the diode, the control law is built using Dynamic Surface Control (DSC) approach and for its blocking phase, the DSC is combined with the method of singular perturbations. Conditions guaranteeing quadratic stability of the closed loop under proposed control law are given. Simulation results illustrate the effectiveness of the proposed control law.
Keywords :
DC power transmission; load flow control; perturbation techniques; power system stability; DC network; DSC approach; conduction phase; dynamic elements; dynamic surface control approach; energy flow direction; full network; optimal energy management; quadratic stability; reduced network; reversible load; singular perturbations; stability preserving switching; stabilization; storage device; switching control law; Decision support systems; Economic indicators; DC network; Dynamic Surface Control; Energy management; Singular perturbations; Stabilization; Switching control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industrial Electronics Society, IECON 2014 - 40th Annual Conference of the IEEE
Type :
conf
DOI :
10.1109/IECON.2014.7049051
Filename :
7049051
Link To Document :
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