Inventor

ZHANG YANZHONG

CN47 patents

⚠️ This page may combine multiple inventors who share the name “ZHANG YANZHONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ZHANG YANZHONG

HUAWEI DIGITAL POWER TECH CO LTD

Energy storage system

Protection apparatus and protection method for photovoltaic power generation system

Photovoltaic power generation system, photovoltaic inverter, and direct current combiner box

Energy storage system and photovoltaic energy storage system

Protection apparatus and protection method for photovoltaic power generation system

Charging module and charging system

Power system

Photovoltaic power generation system, photovoltaic inverter, and direct current combiner box

Photovoltaic system, optimizer, and method for adjusting working state of optimizer

Photovoltaic system and circulating current suppression method

Energy storage system and black start method

Photovoltaic system, protection method, and inverter system

Inverter circuit control method and related apparatus

Power supply system

Inverter

Method and apparatus for suppressing cross current in inverter parallel system

Photovoltaic power generation system, power control method, and combiner box

Linkage protection system and method for photovoltaic power station

Method, apparatus, and system for detecting solar cell of photovoltaic plant

Power system

Fault detection method, fault detection apparatus for photovoltaic module and computer-readable storage medium

Photovoltaic module and photovoltaic system

Detection condition determining method, apparatus, and photovoltaic system

Direct current power supply system, photovoltaic system, energy storage system, and optical storage system

Energy storage system

Power generation system and communications apparatus used in power generation system

Location update method and apparatus of photovoltaic string

Protection circuit for preventing misconnection at input end and photovoltaic power generation system

Photovoltaic system, power supply system, and control method

Power supply system, protection method for power supply system, and DC/DC converter

Photovoltaic system

Photovoltaic power conversion apparatus

Bipolar photovoltaic system, power supply system, and redundancy protection method

Rotation system and controller for photovoltaic tracker

Pre-charging circuit, inverter, and power generation system

Photovoltaic system

Arc detection method for performing protection in energy storage system, and related apparatus

HUAWEI TECH CO LTD

Resonant converter circuit and resonant converter circuit control method

Energy storage system and photovoltaic energy storage system

Control method of power conversion circuit, and related power conversion circuit

Resonant DC-DC converter

Photovoltaic direct-current breaking apparatus

Resonant converter, resonant converter control method, and system

Inverter topology circuit, inversion method and inverter

Photovoltaic power generation inverter system

Wave loss detection circuit for drive signal and switching transistor drive circuit

GENERAL ELECTRIC TECHNOLOGY GMBH

Method of operation a differential protection scheme