PBC Approach for SMES Devices in Electric Distribution Networks

This express brief presents a nonlinear active and reactive power control for a superconducting magnetic energy storage (SMES) system connected in three-phase distribution networks using pulse-width modulated current-source converter (PWM-CSC). The passivity-based control (PBC) theory is selected as...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems. II, Express briefs Express briefs, 2018-12, Vol.65 (12), p.2003-2007
Main Authors: Montoya, O. D., Gil-Gonzalez, W., Serra, F. M.
Format: Article
Language:English
Subjects:
Active control
Computer simulation
Converters
Current sources
Damping
Distribution management
distribution networks
Dynamic stability
Dynamical systems
Electronic devices
Energy management
Energy storage
Integrated circuit interconnections
Magnetic energy storage
Mathematical model
Networks
Nonlinear control
passivity-based control (PBC)
Phase distribution
Power control
Power factor
pulse-width modulated current-source converter (PWM-CSC)
Radial distribution
Reactive power
Superconducting coils
Superconducting energy storage system (SMES)
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Summary:This express brief presents a nonlinear active and reactive power control for a superconducting magnetic energy storage (SMES) system connected in three-phase distribution networks using pulse-width modulated current-source converter (PWM-CSC). The passivity-based control (PBC) theory is selected as a nonlinear control technique, since the open-loop dynamical model exhibits a port-Hamiltonian (pH) structure. The PBC theory exploits the pH structure of the open-loop dynamical system to design a general control law, which preserves the passive structure in closed-loop via interconnection and damping reassignment. Additionally, the PBC theory guarantees globally asymptotically stability in the sense of Lyapunov for the closed-loop dynamical system. Simulation results in a three-phase radial distribution network show the possibility to control the active and reactive power independently as well as the possibility to use the SMES system connected through a PWM-CSC as a dynamic power factor compensator for time-varying loads. All simulations are conducted in a MATLAB/ODE package.
ISSN:1549-7747
1558-3791
DOI:10.1109/TCSII.2018.2805774