Fotovoltaischer Wechselrichter und Drosselungssteuerungsverfahren für Fotovoltaischen Wechselrichter

Details

Veröffentlichungs-Nr.

EP4811643

Anmeldetag

16. März 2026

Veröffentlichung

23. September 2026

Rechtsraum

EP

Abstract

Embodiments of this application provide a photovoltaic inverter and a derating control method for the photovoltaic inverter. The photovoltaic inverter includes an inverter circuit, a plurality of direct current conversion circuits, and a controller. The plurality of direct current conversion circuits are configured to: perform direct current conversion on a direct current from a photovoltaic module and output a converted direct current to the inverter circuit. The plurality of direct current conversion circuits include a first direct current conversion circuit and a second direct current conversion circuit. The inverter circuit is configured to convert direct currents from the plurality of direct current conversion circuits into alternating currents. When the photovoltaic inverter is in a derating mode, an input voltage of the first direct current conversion circuit is controlled to increase, to decrease output power of the first direct current conversion circuit, so as to decrease output power of the inverter circuit. The input voltage of the first direct current conversion circuit is less than an input voltage of the second direct current conversion circuit.

Anmelder

Firma

HUAWEI TECHNOLOGIES CO., LTD.

Land

🇨🇳 China