18521816. PROTECTION APPARATUS AND PROTECTION METHOD FOR PHOTOVOLTAIC POWER GENERATION SYSTEM simplified abstract (Huawei Digital Power Technologies Co., Ltd.)
PROTECTION APPARATUS AND PROTECTION METHOD FOR PHOTOVOLTAIC POWER GENERATION SYSTEM
Organization Name
Huawei Digital Power Technologies Co., Ltd.
Inventor(s)
Xiufeng Zhang of Dongguan (CN)
Yanzhong Zhang of Shenzhen (CN)
PROTECTION APPARATUS AND PROTECTION METHOD FOR PHOTOVOLTAIC POWER GENERATION SYSTEM - A simplified explanation of the abstract
This abstract first appeared for US patent application 18521816 titled 'PROTECTION APPARATUS AND PROTECTION METHOD FOR PHOTOVOLTAIC POWER GENERATION SYSTEM
Simplified Explanation
The protection apparatus described in the patent application is designed to protect photovoltaic units and lines in a photovoltaic power generation system with low power loss in case of faults. The apparatus includes an interface, a protection switch, a direct current bus, and a controller. The protection switch can disconnect faulty photovoltaic units from the bus, allowing a maximum of three units to be connected in parallel.
- Explanation of the patent/innovation:
- Interface connects at least two photovoltaic units to the apparatus. - Photovoltaic units are coupled to the direct current bus to form branches. - Protection switch disconnects faulty units to minimize power loss. - Enables up to three photovoltaic units to be connected in parallel.
Potential applications of this technology: - Solar power generation systems - Renewable energy systems - Electrical power distribution systems
Problems solved by this technology: - Minimizing power loss in case of faults - Protecting photovoltaic units and lines - Ensuring efficient operation of photovoltaic power generation systems
Benefits of this technology: - Improved reliability of photovoltaic power systems - Reduced maintenance costs - Enhanced safety for electrical systems
Potential commercial applications of this technology: - Solar power plant installations - Residential solar panel systems - Industrial power generation facilities
Possible prior art: - Existing protection systems for photovoltaic power systems - Fault detection and isolation technologies in electrical systems
Questions: 1. How does the protection switch determine which photovoltaic units to disconnect in case of a fault? 2. Are there any specific safety certifications or standards that this protection apparatus complies with for use in photovoltaic power systems?
Original Abstract Submitted
A protection apparatus includes an interface, a protection switch, a direct current bus, and a controller. The apparatus is connected to at least two photovoltaic units via the interface, the at least two photovoltaic units are coupled to the direct current bus inside the apparatus to form at least two branches, and each branch is connected to at least one photovoltaic unit. The protection switch is configured to disconnect all or some of the photovoltaic units from the direct current bus, to enable a maximum of three photovoltaic units to be directly connected in parallel. According to the apparatus, a photovoltaic unit and a line are protected with a low power loss when a photovoltaic power generation system is faulty.
