A power distribution network renewable energy power generation cluster access planning method

A technology for renewable energy and distribution network, applied in resources, instruments, data processing applications, etc., can solve the problem of not considering the connection and impact of multiple substation operations, not fully considering the impact of changes in power supply support capacity, and insufficient modeling Accuracy etc.

Pending Publication Date: 2019-05-31
TIANJIN UNIV +1
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Problems solved by technology

This type of method considers that the distribution networks under different substations are independent of each other, and does not consider the connection and influence between the operation of multiple substations in the system.
[0007] (2) In the process of renewable energy power generation planning, the influence of various adjustment measures in the active dis

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  • A power distribution network renewable energy power generation cluster access planning method
  • A power distribution network renewable energy power generation cluster access planning method
  • A power distribution network renewable energy power generation cluster access planning method

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Embodiment Construction

[0101] The present invention is described below in conjunction with accompanying drawing and accompanying table.

[0102] The renewable energy generation cluster access planning method includes an upper-level planning model and a lower-level scheduling model. The upper-level planning model aims at maximizing the income of renewable energy power generation investors, and determines the cluster access capacity of photovoltaic and wind turbines under each 35kV substation:

[0103] maxF upper =max(C cell -C inv -C main )

[0104] According to the electricity sales of photovoltaics and wind turbines, the electricity sales income of renewable energy power generation users is obtained:

[0105]

[0106] In the formula, r is the discount rate, Ny, N PV , N WTG They are the planning period, the number of photovoltaics, and the number of wind turbines, c sell,PV and c sell,WTG are the on-grid tariffs of photovoltaic and wind turbines, respectively, and Respectively, the ...

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Abstract

The invention relates to a power distribution network renewable energy power generation cluster access planning method. An upper layer planning model and a lower layer scheduling model are adopted, and the upper layer planning model takes maximum revenue of a renewable energy power generation investor as a target; an objective function of the lower-layer scheduling model comprises a power balancedegree index, the adjustment cost of a power distribution company and the active power reduction amount of renewable energy power generation; the adjustment measures comprise the action of a tie lineswitch, the tap action of an on-load voltage regulation transformer and the active power reduction and reactive power compensation of renewable energy power generation; the C-Vine Copula model is usedfor modeling according to the timing correlation between load and renewable energy resources,, and a typical planning scene considering load and resource correlation is generated by combining a Latinhypercube sampling method.

Description

technical field [0001] The invention relates to a planning method for connecting renewable energy power generation clusters in a distribution network considering load and time sequence correlation of resources. Background technique [0002] The connection of renewable energy power generation to the distribution network plays a positive role in saving energy and reducing carbon emissions. However, when renewable energy power generation accounts for 20%-30% of the total power generation of various power sources, the intermittent and random nature of renewable energy power generation will lead to problems such as system overvoltage and power reverse. Therefore, in order to improve the acceptance capacity of the distribution network for renewable energy generation, it is necessary to consider the impact of renewable energy generation on system operation in the planning stage. [0003] Aiming at the problem of renewable energy power generation planning in distribution network, m...

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCY04S10/50
Inventor 郭力赵宗政王成山杨书强徐斌丁津津
Owner TIANJIN UNIV
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