Active distribution network load model construction method for participating in peak-load shifting in power grid

A technology of peak-shaving and valley-filling and load modeling, which is applied in the field of control and dispatching and active distribution network operation, and can solve problems affecting the safety, stability, high quality, economical operation of the power grid, poor quality of power supply voltage, and poor dispatching flexibility. Achieve good commercial application prospects, improve load characteristics, and improve the effect of peak-shaving operation

Active Publication Date: 2018-07-06
STATE GRID CORP OF CHINA +3
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Problems solved by technology

[0003] Due to the large network loss, poor quality of power supply voltage and poor scheduling flexibility, the traditional distribu

Method used

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  • Active distribution network load model construction method for participating in peak-load shifting in power grid
  • Active distribution network load model construction method for participating in peak-load shifting in power grid
  • Active distribution network load model construction method for participating in peak-load shifting in power grid

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Embodiment Construction

[0045] The technical scheme of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0046] Such as figure 1 , figure 2 , image 3 , Figure 4A , Figure 4B , Figure 4C As shown, an active distribution network load model construction method that participates in grid peak shaving and valley filling includes the following steps:

[0047] Step 1) Obtain the daily planned operating parameters of the active distribution network; including: distribution network daily load curve, photovoltaic power generation curve, wind power generation curve, maximum charging power of energy storage unit, maximum discharge power of energy storage unit, energy storage Maximum charge capacity and maximum discharge capacity of the unit;

[0048] Step 2) Superimpose the daily planned power characteristic curve to obtain an equivalent daily load power characteristic curve;

[0049] Step 3) Calculate the discharge area of ​​the energy storage unit;

[0...

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Abstract

The invention, which belongs to the technical field of new-energy grid-connected controlling, discloses an active distribution network load model construction method for participating in peak-load shifting in a power grid. According to load prediction as well as wind- luminous power prediction, an equivalent daily load curve is constructed; according to the adjustment capacity of the energy storage unit, an area of peak-load shifting is determined by using one-dimensional optimization searching based on an area equivalence principle and an active distribution network load model is constructedto realize participation of the distribution load in peak regulation. According to the invention, with consideration of power control of the energy storage unit of the active distribution network, theparticipation of the distribution load in peak regulation is realized, so that a technical basis is provided for economic operation of the power grid.

Description

Technical field [0001] The invention relates to a method for constructing an active distribution network load model, in particular to a method for constructing an active distribution network load model that participates in grid peak shaving and valley filling, and belongs to the field of active distribution network operation, control and dispatch. Background technique [0002] The development of distributed power sources can optimize the energy structure, promote energy conservation and emission reduction, and achieve sustainable economic development. In recent years, with the rapid increase in the penetration rate of distributed power sources in the distribution network and the development of energy storage, heat storage and electric vehicles, the traditional distribution network is gradually evolving into an active distribution network with many controllable resources. Its operation and management will also encounter many challenges. [0003] Traditional distribution networks ha...

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/06313G06Q10/06314G06Q50/06
Inventor 张涛王刚叶鹏牛明珠李家珏牛潇王超曾辉张延峰张强李春平杨万清郭兆成梅迪邹楠
Owner STATE GRID CORP OF CHINA
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