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A Robust Scheduling Method for AC-DC Hybrid Microgrid Considering the Dynamic Loss of Energy Storage

A technology of AC and DC mixing and dynamic loss, which is applied in the direction of AC network circuit, calculation, single network parallel feeding arrangement, etc.

Active Publication Date: 2020-08-11
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the proposed model only considers the influence of SOC or C on energy storage loss

Method used

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  • A Robust Scheduling Method for AC-DC Hybrid Microgrid Considering the Dynamic Loss of Energy Storage
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  • A Robust Scheduling Method for AC-DC Hybrid Microgrid Considering the Dynamic Loss of Energy Storage

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Embodiment Construction

[0088] The technical solutions of the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0089] 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, including the following steps:

[0090] Step 10) Obtain energy storage test parameters, and construct a bilinear energy storage dynamic loss model;

[0091] Step 20) linearize the energy storage dynamic loss model constructed in step 10);

[0092] Step 30) Obtain the operating cost coefficient and operating limit of each device, and establish a robust optimal scheduling model for the AC / DC hybrid microgrid;

[0093] Step 40) Solve the robust optimization scheduling problem: use the nested column constraint generation algorithm to solve the robust optimization problem, and obtain the robust coordinated operation mode of the AC / DC hybrid microgrid.

[0094] A...

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Abstract

The invention discloses an AC / DC hybrid microgrid robust scheduling method based on energy storage dynamic loss, which comprises the following steps of step 10) acquiring energy storage test parameters and constructing an energy storage dynamic loss model in a bilinear form; step 20) performing linearization processing on the energy storage dynamic loss model constructed in the step 10); step 30)obtaining the operation cost coefficient and the operation limit value of each equipment, and establishing a robust optimization scheduling model of the alternating-current and direct-current hybrid microgrid; step 40) solving robust optimization scheduling problems, which means to solve robust optimization problems by utilizing a nested column constraint generation algorithm, and obtain a robustcoordination operation mode of the alternating-current and direct-current hybrid microgrid. The method is advantageous in that the characteristics of energy storage dynamic loss in the alternating current and direct current hybrid microgrid can be considered, and robust optimal scheduling of the alternating-current and direct-current hybrid microgrid can be realized; the economic benefit of energystorage operation is improved on the basis that the energy storage loss cost is accurately calculated; important guidance and help can be provided for making an operation plan of an AC / DC hybrid microgrid.

Description

technical field [0001] The invention belongs to the technical field of microgrid energy management and optimal dispatching, and specifically relates to a robust dispatching method for an AC / DC hybrid microgrid considering the dynamic loss of energy storage. Background technique [0002] More and more renewable energy has replaced traditional fossil energy and connected to the power system, and the penetration rate of renewable energy in the grid has gradually increased. At present, microgrid has become an effective method to solve the problem of renewable energy accessing the power system. In order to realize the coordinated operation of traditional units, renewable energy power generation, energy storage and other equipment, it is necessary to optimize the scheduling of the microgrid to formulate a reasonable operation plan to ensure the stable and efficient operation of the microgrid. Renewable energy is subject to strong volatility and intermittency due to the influence ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06H02J3/48
CPCG06Q10/04G06Q10/06312G06Q50/06H02J3/48H02J2203/20Y02E40/70Y04S10/50
Inventor 顾伟邱海峰龙寰周苏洋吴志
Owner SOUTHEAST UNIV
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