Distributed photovoltaic power station group and electric network information real-time transmission management system

Abstract

The invention provides a distributed photovoltaic power station group and electric network information real-time transmission management system. The management system comprises a cloud database, a server, an inverter detection device, a temperature sensor, a weather instrument, an irradiatometer, and a plurality of distributed photovoltaic power station groups. The server comprises a master server, a county-level dispatch server, a regional dispatch server, and a plurality of base station servers. The cloud database is respectively connected with the base station servers and the master server. The master server is respectively connected with the county-level dispatch server and the regional dispatch server. The base station servers are connected with the distributed photovoltaic power station groups through the inverter detection device, the temperature sensor, the weather instrument, and the irradiatometer. Based on the characteristics of intermittency and instability of the distributed photovoltaic power station groups, the management system achieves the real-time transmission between the distributed photovoltaic power station groups and electric network information, provides theoretic data for a power network, improves the intelligence level of the power network, facilitates integrated dispatching and management of the power network on the distributed photovoltaic power station groups, and guarantees the unimpeded grid connection of the distributed photovoltaic power station groups.

Description

technical field [0001] The invention relates to an information transmission management system, in particular to a distributed photovoltaic power station group and power grid information real-time transmission management system. Background technique [0002] Energy is the lifeblood of the national economy, and sufficient energy supply is the guarantee of national security and regional security. Facing the crisis of increasing shortage of traditional exhaustible energy sources such as oil and coal, vigorously develop and utilize new renewable energy sources, including solar energy, wind energy, nuclear energy, biomass energy, and tidal energy, which have become an important part of the strategic energy of various countries. [0003] The State Council, the Development and Reform Commission, and governments at all levels have recently issued policies to encourage grid-connected power generation of distributed photovoltaics. As a clean energy source, photovoltaic power generation...

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Problems solved by technology

[0003] The State Council, the National Development and Reform Commission, and governments at all levels have recently issued policies to encourage grid-connected power generation of distributed photovoltaics. As a clean energy source, photovoltaic power generation is currently an industry encouraged by the state. However, distributed photovoltaic power sources have small power generation, wide distribution, and Poor regulation and other characteristics, after it is connected to the grid, it will have a certain impact on the regulation and safe operation of the existing grid mode. As the grid-connected capacity of the distributed photovoltaic system increases year by year, its intermittent, unstable and Factors such as harmonics are bound to have an impact on the power grid

Because the power grid cannot know its relevant data, and the dispatching management is extremely passive, the reluctance of the power grid to actively absorb photovoltaic power generation is one of the bottlenecks in the difficulty of grid-connected photovoltaic power generation. If you want the power grid to embrace photovoltaic power generation, you must also incorporate distributed photovoltaic power generation devices into the overall power grid model General management

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