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Method for optimizing and configuring maximum admission capacity of distributed generation in power distribution network

A distributed power supply and optimized configuration technology, applied in the direction of circuit devices, electrical components, AC network circuits, etc., can solve problems that threaten the safe and stable operation of the system

Inactive Publication Date: 2019-02-15
SHANGHAI MUNICIPAL ELECTRIC POWER CO
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Problems solved by technology

However, when the DG penetration rate in the network is high, if the access position, quantity and capacity of the DG are not properly optimized, the safe and stable operation of the system will be seriously threatened.

Method used

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  • Method for optimizing and configuring maximum admission capacity of distributed generation in power distribution network
  • Method for optimizing and configuring maximum admission capacity of distributed generation in power distribution network
  • Method for optimizing and configuring maximum admission capacity of distributed generation in power distribution network

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Embodiment Construction

[0039] In order to better understand the technical solution of the present invention, the following will be described in detail through specific examples:

[0040] A method for optimally configuring the maximum access capacity of distributed power sources in a distribution network according to the present invention includes an objective function for describing the maximum DG capacity of grid-connected plots to be planned:

[0041]

[0042] where n DG is the candidate DG access node, P DGi is the DG access active power of the i-th access point, the objective function is used to find the configuration scheme with the largest total active power access of DG in the distribution network,

[0043] Including the following constraint steps:

[0044] Step 1, the power flow equation constraint step, in the case of safe and stable operation of the power grid, the active power equation, reactive power equation and node voltage equation of the distribution network including DG are sho...

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Abstract

The invention discloses a method for optimizing and configuring maximum admission capacity of a distributed generation in a power distribution network. A DG optimization configuration model which takes the maximum DG access capacity as a target and fully considers safe, reliable and stable operation of the power distribution network is established, so that the DG can be accessed to the power distribution network in a high-proportion and large-capacity mode.

Description

technical field [0001] The invention relates to a method for optimally configuring the maximum admission capacity of distributed power sources in a distribution network in the field of distributed power grids. Background technique [0002] At present, the world-recognized power system combining large power grid interconnection and distributed power grid connection can effectively solve the problem of inconsistent resources and load locations, increase the stability of the power grid, improve the reliability of power supply, optimize the economy of power generation, transmission and distribution, and improve Power system flexibility and other issues. Distributed Generation (DG) refers to power generation facilities that are directly arranged on the distribution network or distributed near the load, with a general capacity between several thousand watts and 50MW. According to the different technologies used, distributed power generation devices can be divided into cogeneratio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/06H02J3/12H02J3/00
CPCH02J3/008H02J3/06H02J3/12H02J3/381H02J2203/20
Inventor 顾皓亮阎鼎郝珈玮孙志恒邓孟华刘议华
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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