Calculation method of photovoltaic openable capacity based on data mining

Abstract

The invention discloses a calculation method of photovoltaic openable capacity based on data mining. The problems that openable capacity corresponding to each voltage level is calculated by a capacity-load ratio method or the line transmission capability analysis, but the method is not reasonable enough in consideration and is prone to large deviation are solved. The calculation method comprises the steps: S100, establishing a calculation system of the maximum photovoltaic openable capacity of a grid, and calculating the maximum photovoltaic openable capacity of the grid; S200, on the basis that the system reaches the maximum photovoltaic openable capacity of the grid, establishing a main transformer and line load rate balancing model, so that each main transformer load and line load can achieve balanced distribution, and balanced distribution of load flow in the grid is realized. According to the calculation method of the photovoltaic openable capacity based on data mining, the calculation accuracy of the maximum power supply openable capacity can be reasonably increased.

Description

technical field [0001] The invention relates to a calculation method of photovoltaic openable capacity based on data mining. Background technique [0002] In order to reduce dependence on fossil energy and achieve energy conservation and emission reduction, the state has issued a series of policies in recent years to vigorously develop the photovoltaic industry. In this context, photovoltaic power generation projects have developed rapidly. The access to large-scale distributed photovoltaic power generation will have a profound impact on grid planning, construction, and safe and stable operation, and puts forward new requirements for grid planning, maintenance, and operation. [0003] At present, the analysis method for the maximum openable capacity of power supply mainly adopts the classical capacity-load ratio method and line transmission capacity analysis, among which the capacity-load ratio method is mainly based on the substation’s transformation capacity, and the meth...

AI Technical Summary

Problems solved by technology

When the power generation capacity in the grid is small and the transmission capacity of the line is insufficient, the calculation result of the capacity-load ratio method is not accurate; while the analysis of the transmission capacity of the line uses the line as the basis for the calculation of the power supply capacity. The basic idea is to consider the transfer capacity of the network. However, it is not reasonable to only analyze the transmission capacity of the line, and the calculation results usually have large deviations

[0004] Therefore, it is not reasonable enough to calculate the openable capacity corresponding to each voltage level through the capacity-load ratio method or line transmission capacity analysis, and it is easy to produce large deviations, and there is still room for improvement

Images