A distributed photovoltaic power generation grid-connected interface device

Abstract

The invention relates to a distributed type photovoltaic power generation grid connection interface device. The distributed type photovoltaic power generation grid connection interface device comprises a control protection module, a computing control module, a data collecting module and a communication module. According to the distributed type photovoltaic power generation grid connection interface device, the computing control module is respectively connected with the control protection module, the data collecting module and the communication module. The computing control module is used for acquiring information of the communication module and information of the data collecting module, and the control protection module controls on-off of a grid connection interface switch. The distributed type photovoltaic power generation grid connection interface device overcomes the defects that traditional protection is complex in configuration, difficult to match, low in sensitivity, poor in anti-jamming capability, disperse in distribution, multiple in control targets, complex in management and the like. The distributed type photovoltaic power generation operation and maintenance management of a power grid is effectively improved, meanwhile, the effect on the power grid from the distributed type photovoltaic power generation is greatly reduced, and the healthy and well-organized development of the distributed type photovoltaic power generation is positively promoted.

Description

technical field [0001] The invention belongs to photovoltaic power generation technology, and specifically relates to a grid-connected interface device for distributed photovoltaic power generation. Background technique [0002] Distributed power can generally be defined as: using distributed resources, small installed capacity, located near the user, access to renewable energy, resource comprehensive utilization and energy cascade utilization multi-generation facilities through voltage levels of 10kV and below. It mainly includes wind energy, solar energy, biomass energy, water energy, tidal energy, ocean energy and other renewable energy power generation, as well as waste heat, waste pressure and waste gas utilization power generation and small natural gas combined cooling, heating and power supply. Distributed photovoltaic power generation is an effective utilization type of distributed power generation. It refers to photovoltaic power generation that is located near the ...

AI Technical Summary

Problems solved by technology

At present, the grid-connected projects of distributed photovoltaic power generation are faced with the transformation of many existing projects, and if the interface device requires a separate grid-connected switch, it will waste resources with the original grid-connected switch.

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