A Coordinated Operation Method for Data Transmission Congestion of Multiple Photovoltaic Power Stations
A photovoltaic power station and data transmission technology, applied in photovoltaic power generation, digital transmission systems, transmission systems, etc., can solve problems such as the difficulty of intelligent control of power grid dispatching, the difficulty of accurate prediction, and the intermittent instability of solar photovoltaic
Active Publication Date: 2020-07-07
STATE GRID QINGHAI ELECTRIC POWER +2
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Problems solved by technology
However, as a new energy source, solar photovoltaic power generation is intermittent and unstable, and its accurate prediction has certain difficulties, which also brings difficulties to the intelligent control of power grid dispatching, especially when data transmission of multiple photovoltaic power plants
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[0034] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0035] Step 1: According to the actual operating status, specific dynamic performance, and local geographical conditions of different photovoltaic power stations, based on the data transmitted from photovoltaic power stations to the dispatching center, select the parameter indicators that affect the priority classification of photovoltaic power stations;
[0036] The selected parameter indicators include the geographical distance L between each photovoltaic power station and the dispatching station i , the power generation coefficient P of each photovoltaic power station i , Power quality index Z i , the accuracy index C of the transmitted data i , The installation angle ...
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The invention provides a coordinated operation method for data transmission congestion of multiple photovoltaic power stations, and relates to the field of power grid dispatching. A coordinated operation method for data transmission congestion of multiple photovoltaic power stations, by analyzing and calculating parameters that affect data priority classification, and then using a function to describe the initial dynamic priority of the data of a photovoltaic power station. The optimal allocation function is constructed by combining the environmental parameters of each photovoltaic power station that affect data transmission and the power generation coefficient, and an appropriate priority threshold is set. By comparing the optimal distribution function value of data transmission with the priority threshold setting value, the priority classification is completed, and finally the priority distribution of the overall data of each photovoltaic power station is realized. The coordinated operation method for data transmission congestion of a plurality of photovoltaic power stations provided by the present invention allows high-priority data to be processed first, solves the problem of data congestion, and improves the utilization efficiency and processing speed of information data of each photovoltaic power station.
Description
technical field [0001] The invention relates to the technical field of grid dispatching, in particular to a coordinated operation method for data transmission congestion of multiple photovoltaic power stations. Background technique [0002] At present, with the gradual heating up of the topic of environmental protection, the development of new energy has become a key project of energy development. Solar energy, as the most representative new energy, has become a strategic focus of energy development. In the safe operation system of the power grid, the photovoltaic power station should be able to transmit remote information to the power system dispatcher, upload the photovoltaic power generation power prediction parameters, power quality information, sunlight intensity, sun incidence angle, and installation of photovoltaic arrays in the photovoltaic power station. Environmental parameters such as angle, conversion efficiency, atmospheric pressure, temperature, and some random...
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IPC IPC(8): H04L29/08H04L12/927H02J3/38H02J13/00H04L47/80
CPCH02J3/383H02J13/0017H04L47/805H04L67/12Y04S10/123Y02B10/10Y02E10/56Y02E40/70
Inventor 李春来杨金路滕云左浩张海宁孙鹏张玉龙程珊珊
Owner STATE GRID QINGHAI ELECTRIC POWER