Title :
Energy concept-based nonlinear stabilization and control for Modular Multilevel Converters for voltage oscillation reduction
Author :
Jaafar, Azizah ; Bergna, Gilbert ; Vannier, J.-C. ; Lefranc, P.
Author_Institution :
E3S Team - Energy Dept., SUPELEC, Gif-sur-Yvette, France
Abstract :
The Interconnection and Damping Assignment Passivity-Based Control (IDAPBC) is applied phase-independently to the Modular Multilevel Converter (MMC) in order to overcome “dqo”-based control problems. In addition, an equilibrium point estimator is proposed to determine the time-varying equilibrium state of the MMC needed as input for the non-linear controller. This control strategy provides global robust stabilization of the MMC against variations on both its AC and DC sides. The control + estimator strategy combines both the state-space and energy dynamics models of the MMC.
Keywords :
nonlinear control systems; power control; power convertors; energy concept based nonlinear stabilization; equilibrium point estimator; interconnection and damping assignment passivity based control; modular multilevel converters; nonlinear controller; voltage oscillation reduction; Capacitors; Circuit stability; Damping; Integrated circuit interconnections; Steady-state; Symmetric matrices; Vectors; Converter control; HVDC; Multiterminal HVDC; Non-linear control; Robust control;
Conference_Titel :
Power Electronics and Applications (EPE'14-ECCE Europe), 2014 16th European Conference on
Conference_Location :
Lappeenranta
DOI :
10.1109/EPE.2014.6910910
