Steuerungsvorrichtung und Verfahren zur Aktiven Leistungssteuerung in einem Netzformungswandler

Details

Veröffentlichungs-Nr.

EP4811593

Anmeldetag

20. März 2025

Veröffentlichung

23. September 2026

Rechtsraum

EP

Abstract

The present disclosure relates to a control device (20) configured to control a voltage source converter, VSC, (10) electrically connected to an electrical power network (40) via a point of common connection, PCC, the control device (20) comprising an active power loop controller (21), wherein, when the electrical power network (40) after a fault operates with a short-circuit power indicative of a short-circuit ratio, SCR, within at least one predetermined SCR interval (SCR_I, SCR_II), the active power loop controller (21) is configured to: control an internal frequency (ω_EMF) of the VSC (10) via an active power control circuit (211) when an active power (P_g) being exchanged between the VSC and the electrical power network (40) via the PCC is equal to or below an active power saturation limit (P_{sat_UPlim}), and control the internal frequency (ω_EMF) via the active power control circuit (211) and an active power limiter control circuit (212) to reduce the active power (P_g) below the active power saturation limit (P_{sat_UPlim}) when the active power (P_g) is above the active power saturation limit (P_{sat_UPlim}), wherein the active power saturation limit (P_{sat_UPlim}) is based at least on one of at least one active power limit (P_lim1, P_lim2), each active power limit based at least on at least one parameter (V_g, P_g, Q_g) of the electrical power network (40). A power supporting system and a method of controlling a voltage source converter are also disclosed.

Anmelder

Firma

Hitachi Energy Ltd

Land

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