Robust optimization coordinated scheduling method for alternating current-direct current hybrid microgrid

An AC-DC hybrid, micro-grid robust technology, applied in the field of AC-DC hybrid micro-grid robust optimization and coordination scheduling, can solve the multi-uncertainties of the micro-grid, and has not yet fully considered the AC-DC hybrid micro-grid operating cost, operating characteristics and Relevant constraints, strong load fluctuations, etc.

Active Publication Date: 2018-06-01
SOUTHEAST UNIV
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Problems solved by technology

[0003] The influence of renewable energy by natural conditions is random and intermittent, and the load fluctuation is strong, which leads to more uncertainties in the microgrid, which brings great challenges to the optimal scheduling of the microgrid.
As a new type of microgrid structure, the AC-DC hybrid microgrid connects the A...

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  • Robust optimization coordinated scheduling method for alternating current-direct current hybrid microgrid
  • Robust optimization coordinated scheduling method for alternating current-direct current hybrid microgrid
  • Robust optimization coordinated scheduling method for alternating current-direct current hybrid microgrid

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Embodiment Construction

[0059] The technical solutions of the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0060] Such as figure 1 As shown, in the embodiment of the method of the present invention, the topology of the AC-DC hybrid microgrid is as follows figure 2 shown. The method includes the following steps:

[0061] Step 10) Obtain the source load prediction data and construct the uncertainty set;

[0062] Step 20) Obtain the operating cost coefficient of each device in the system, and construct the objective function of the robust optimization scheduling model of min-max-min form;

[0063] Step 30) Obtain the operating limits of each device in the system, and establish the constraints of the robust optimization scheduling model in the form of min-max-min;

[0064] Step 40) Solving the robust optimization scheduling problem, that is, using the column constraint generation algorithm to solve the robust optimization probl...

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Abstract

The invention discloses a robust optimization coordinated scheduling method for an alternating current-direct current hybrid microgrid. The method comprises the following steps: step 10) source load prediction data are acquired, and an uncertainty set is constructed; step 20) the objective function of an optimal scheduling model is obtained; step 30 ) the constraint conditions of the optimal scheduling model are established; and step 40) a robust optimization scheduling problem is solved: a column constraint generation algorithm is adopted to solve the robust optimization problem, and the robust coordinated operation mode of the alternating current-direct current hybrid microgrid is obtained. According to the method, a plurality of source load uncertainties in the alternating current-direct current hybrid microgrid are considered; the robust optimal scheduling of the alternating current-direct current hybrid microgrid can be realized; and guidance and assistance can be provided for theformulation of the operating modes of the alternating current-direct current hybrid microgrid.

Description

technical field [0001] The invention belongs to the technical field of micro-grid optimization scheduling and energy management, and specifically relates to a method for robust optimization and coordination scheduling of AC-DC hybrid micro-grids. Background technique [0002] Due to the depletion of fossil energy and its high pollution to the ecological environment, natural resources represented by wind energy and solar energy have attracted widespread attention for their clean and renewable characteristics. At present, more and more renewable energy power generation is connected to the power grid. As a small autonomous system that gathers distributed power generation, energy storage and load, microgrid has become an effective technology and an important way to rationally utilize renewable energy in the field of power system. In order to ensure the economical and reliable operation of the microgrid, it is necessary to manage the energy of the microgrid. According to the for...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06
Inventor 顾伟邱海峰赵波
Owner SOUTHEAST UNIV
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