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 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. © 2004-2012 IEEE.

• Fecha de publicación: 2018
• Institución: Universidad Tecnológica de Bolívar
• Repositorio: Repositorio Institucional UTB
• Idioma: eng
• OAI Identifier: oai:repositorio.utb.edu.co:20.500.12585/8853
• Acceso en línea: https://hdl.handle.net/20.500.12585/8853
• Palabra clave: Distribution networks; Passivity-based control (PBC); Pulse-width modulated current-source converter (PWM-CSC); Superconducting energy storage system (SMES); Damping; Dynamical systems; Electric energy storage; Electric power distribution; Energy storage; Integrated circuit interconnects; Magnetic storage; Mathematical models; MATLAB; Pulse width modulation; Reactive power; Superconducting coils; Superconducting magnets; Active and reactive power controls; Energy storage systems; Globally asymptotically stability; Integrated circuit interconnections; Passivity based control; Pwm-csc; Radial distribution networks; Superconducting magnetic energy storage system; Power control
• Rights: restrictedAccess
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/