A solar photovoltaic power generation system

Abstract

The invention provides a solar photovoltaic power generation system, and the system comprises a solar photovoltaic array, a DC grounding box, an inverter, an AC power distribution box, an equipotential connection bar, a grounding body, a wiring box, and a power distribution disc. The solar photovoltaic array, the DC grounding box, the inverter and the AC power distribution box are connected sequentially, and a connection line of the solar photovoltaic array is provided with lightning protection elements in a scattered manner. A metal outer frame of the solar photovoltaic array, the metal housing of the DC grounding box, the metal housing of the inverter and the metal housing of the AC power distribution box are respectively connected with the grounding body through the equipotential connection bar. The output end of the AC power distribution box is connected with the wiring box, and the wiring box is connected with a power distribution disc. A cable between the solar photovoltaic array and the DC grounding box, a cable between the DC grounding box and the inverter and a cable between the inverter and the AC power distribution box are respectively in indirect connection with the equipotential connection bar through the lightning protection elements. According to the above technical scheme of the invention, the system prevents the lightning stroke from causing damages to the system more effectively.

Description

technical field [0001] The invention relates to the field of solar photovoltaic technology, in particular to a solar photovoltaic power generation system. Background technique [0002] At present, the global energy shortage, more and more people began to use new, green, environmentally friendly energy as a supplement and substitute for traditional energy, solar energy is one of them. Solar photovoltaic power generation system, referred to as PV system, is a system that uses the photovoltaic effect of semiconductors to directly convert solar radiation energy into electrical energy. Solar photovoltaic power generation systems are basically divided into two categories, namely independent power generation and grid-connected power generation. type. As an emerging power generation system, solar photovoltaic power generation system has attracted much attention and been widely used in the field of energy power generation. [0003] Since the solar cell array has a large distributio...

AI Technical Summary

Problems solved by technology

[0003] Since the solar cell array has a large distribution area and is installed outdoors without cover, it is easily affected by the overvoltage caused by lightning, which will cause damage to the photovoltaic power generation system, so it is necessary to take corresponding lightning protection measures

Images