Method for effectively improving grid connection efficiency of distributed power sources

Abstract

The invention provides a method for effectively improving the grid connection efficiency of distributed power sources. The method includes steps of firstly, fixedly mounting special grid connection power distribution boxes of the distributed power sources at grid connection locations; secondly, quickly connecting lower user lines, subscriber lines and assessment gauges with one another by clips onthe special grid connection power distribution boxes of the distributed power sources and carrying out grid connection. The method has the advantages that grid connection procedures are extremely simple and convenient owing to the method, and 'plug-and-play' functions can be completely implemented; business processes can be effectively optimized by the method, and the grid connection applicationtime can be shortened; links for temporarily assembling grid connection equipment on sites can be reduced by completed physical equipment of the grid connection comprehensive power distribution boxesof the distributed power sources, accordingly, plug-and-play equipment functions can be implemented for grid connection subscribers, the grid connection access efficiency can be greatly improved, andthe new energy access service levels can be greatly upgraded.

Description

technical field [0001] The invention relates to an operation method, in particular to a method for effectively improving the grid-connected efficiency of distributed power sources. Background technique [0002] The State Grid Corporation of China has opened a one-key access green channel for distributed photovoltaic power generation projects connected at 220V and 380V voltage levels. The main purpose is to realize barrier-free and fast grid connection of small distributed photovoltaic power sources. The core content of power grid-connected, through on-site investigation, found that most of the existing grid-connected methods still use decentralized grid-connected equipment, that is, meter boxes, meters, air switches, knife switches, etc. are purchased separately and installed uniformly after the equipment is in place. From the analysis of the actual operation of the current distributed grid-connected equipment, there are mainly three prominent problems in the following aspec...

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Problems solved by technology

First, the grid-connected equipment is relatively scattered, and the operation of the equipment brings many risk points that endanger safety, which increases the probability of occurrence of safety incidents; second, there is no dedicated distribution network to isolate and distinguish equipment with different property rights, resulting in difficulties in actual operation and maintenance The interface with property rights is not clear; the third is to wait for all kinds of equipment to be in place for on-site transformation of grid-connected equipment and temporary processing of distribution boxes, which greatly reduces the grid-connected efficiency of distributed power grids, and the backward grid-connected methods are difficult to adapt to the national grid The advanced concept of one-key access promoted by the company

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