Optimal Shaping of the MMC Circulating Currents for Preventing AC-Side Power Oscillations From Propagating Into HVdc Grids

A constrained optimization problem based on the Lagrange multipliers method is formulated to derive the circulating current references of modular multilevel converters (MMCs) directly in abc coordinates. The resulting analytic expressions for calculating the circulating current reference signals are...

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Veröffentlicht in:	IEEE journal of emerging and selected topics in power electronics 2019-06, Vol.7 (2), p.1015-1030
Hauptverfasser:	Bergna-Diaz, Gilbert, Suul, Jon Are, Berne, Erik, Vannier, Jean-Claude, Molinas, Marta
Format:	Artikel
Sprache:	eng
Schlagworte:	Alternating current Circulating current control constrained optimization Coordinates Data buses Electric converters Electric potential energy balancing control Energy storage Equilibrium flow Harmonic oscillation High voltages high-voltage dc (HVdc) transmission HVDC transmission Internal energy Lagrange multiplier Lagrange multipliers method Mathematical analysis Metal matrix composites modular multilevel converters (MMCs) Optimization Oscillators Power control Power electronics Power flow Reference signals Steady-state Voltage control
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