Photovoltaikwechselrichter

Details

Veröffentlichungs-Nr.

EP4822971

Anmeldetag

9. April 2026

Veröffentlichung

14. Oktober 2026

Rechtsraum

EP

IPC

H02M1/32, H02H7/122, H02M7/48

Abstract

Embodiments of this application disclose a photovoltaic inverter, and relate to the field of energy technologies, to resolve a problem of how to control an inverter circuit to stop operating in a timely manner to improve safety and reliability of the photovoltaic inverter when a differential-mode lightning strike occurs on the photovoltaic inverter. The photovoltaic inverter includes a controller, a direct current port, an inverter circuit, a first surge protector, three first inductors, three first capacitors, three second surge protectors, and a three-phase alternating current port. Three phases of output ends of the inverter circuit are respectively connected to first ends of the three first inductors, second ends of the three first inductors are separately connected to the three-phase alternating current port, first ends of the three first capacitors are respectively connected to the second ends of the three first inductors, and second ends of the three first capacitors are all configured to connect to a grounding end. The controller is configured to: detect a voltage of the three-phase alternating current port, and when a voltage of at least one phase of alternating current port is greater than a voltage threshold, control the inverter circuit to stop operating.

Anmelder

Firma

Huawei Technologies Co., Ltd.

Land

🇨🇳 China

Fachgebiete