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A load model construction method for active distribution network that participates in power grid shaving and valley filling

A technology of peak shaving and valley filling, load model, applied in the field of control and scheduling, active distribution network operation, can solve the problems affecting the safety, stability, high quality, economic operation, poor quality of power supply voltage, poor scheduling flexibility, etc. Achieve good commercial application prospects, improve operation, and improve the effect of peak shaving operation

Active Publication Date: 2021-12-10
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 distribution network has shown serious deficiencies, which affect the safe, stable, high-quality and economical operation of the power grid.

Method used

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  • A load model construction method for active distribution network that participates in power grid shaving and valley filling
  • A load model construction method for active distribution network that participates in power grid shaving and valley filling
  • A load model construction method for active distribution network that participates in power grid shaving and valley filling

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Embodiment Construction

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

[0046] like figure 1 , figure 2 , image 3 , Figure 4A , Figure 4B , Figure 4C As shown, a method for constructing an active distribution network load model that participates in power grid 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 the energy storage unit, maximum discharge power of the energy storage unit, energy storage The maximum charge capacity and maximum discharge capacity of the unit;

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

[0049] Step 3) calculating the discharge a...

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Abstract

The invention discloses a method for constructing an active distribution network load model that participates in power grid shaving and filling valleys, and belongs to the technical field of new energy grid-connected control. According to load prediction and wind and light power prediction, an equivalent daily load curve is constructed; according to energy storage The adjustment capacity of the unit is based on the principle of area equivalent, using one-dimensional optimization search to determine the area of ​​peak-shaving and valley-filling, and constructing an active distribution network load model to realize the distribution load participating in the peak-shaving of the power grid. The invention considers the power control of the energy storage unit of the active distribution network, realizes the participation of the distribution load in the peak regulation of the power grid, and provides technical basis for the economical operation of the power grid.

Description

technical field [0001] The invention relates to a method for constructing a load model of an active distribution network, in particular to a method for constructing a load model of an active distribution network that participates in power grid shaving and filling valleys, and belongs to the field of operation, control and dispatch of an active distribution network. Background technique [0002] The development of distributed power can optimize the energy structure, promote energy conservation and emission reduction, and achieve sustainable economic development. In recent years, with the rapid growth of the penetration rate of distributed power in the distribution network, 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] Due to the large network loss, p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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