Solution method for independent and joint dispatching of distribution network with micro-grids

A joint scheduling and microgrid technology, applied in the fields of genetic laws, computational models, predictions, etc., can solve problems such as complex computing difficulties

Inactive Publication Date: 2018-11-02
YANSHAN UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for solving the problem of complex calculation and the adjustment of load demand respo...

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  • Solution method for independent and joint dispatching of distribution network with micro-grids
  • Solution method for independent and joint dispatching of distribution network with micro-grids
  • Solution method for independent and joint dispatching of distribution network with micro-grids

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Embodiment Construction

[0181] Attached below figure 1 The present invention will be further described.

[0182] The steps of the method of the present invention are as follows:

[0183] Step 1, establish the model of distribution network including microgrid, including distribution network dispatching model, household microgrid dispatching model, cogeneration microgrid dispatching model, distribution network structure as attached figure 2 shown;

[0184] 1-1. Distribution network independent and joint dispatching model

[0185] When the distribution network is independently optimized, the interests of the micro-grid are not considered, so as to ensure the economic and safe operation of the distribution network and maximize the revenue of the power supply company. When the distribution network and the microgrid are jointly optimized, the dispatching objectives of the distribution network and the dispatching objectives of the two microgrids should be optimized at the same time. When dispatching the ...

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Abstract

The invention discloses a solution method for independent and joint dispatching of a distribution network with micro-grids. The method comprises the following steps: establishing a model of the distribution network with the micro-grids; establishing an objective function for dispatching of the micro-grids and an objective function for dispatching of the distribution network; determining constraints for independent and joint dispatching of the micro-grids and the distribution network; and solving household microgrids and distribution network by a particle swarm optimization algorithm, and solving thermoelectric microgrids with a Benders decomposition method. In the household microgrids, the demand response is considered, and a load curve is optimized by a genetic algorithm. Aiming at the prediction error of wind power, a wind field model with three-parameter Weibull distribution is established. The method can be applied in the technical field of economic dispatching of a plurality of microgrids, and a plurality of stakeholders are satisfied on the premise of satisfying system constraints. The Benders decomposition method is used to solve a thermoelectric system, thereby effectivelyprotecting the privacy of the information of electric and thermal systems, and improving the accuracy of the calculation.

Description

technical field [0001] The invention relates to the technical field of economic dispatching of integrated energy systems, in particular to a method for solving independent and joint dispatching of distribution networks including microgrids. Background technique [0002] With the reform of the power market, a large number of distributed power sources in the distribution network are built by users or new energy suppliers, which changes the power supply mode in which the ownership of distributed power sources belongs to the grid. The electricity sellers participating in the competition can be divided into three categories, one is power grid enterprise electricity sales companies; It has the right to operate the distribution network and does not undertake guaranteed power supply services. Under the new model, the "buy and sell alone" monopolized by the power grid company will gradually shift to the market structure of "buy more and sell more". Each market player will use electr...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06G06N3/00G06N3/12
CPCG06N3/006G06N3/126G06Q10/04G06Q10/06312G06Q50/06
Inventor 殷桂梁张颖
Owner YANSHAN UNIV
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