Charge-storage integrated micro grid energy optimization scheduling method based on Stackelberg game

A scheduling method and energy optimization technology, applied in charging stations, vehicle energy storage, electric vehicle charging technology, etc., can solve the problem that it is difficult to reflect the difference between charging and swapping stations and ordinary energy storage stations, does not fully consider the interests and wishes of BSS, and does not consider To direct dispatch and other issues, to achieve mutual benefit and win-win results, avoid economic losses, and expand the scope of power supply

Active Publication Date: 2019-08-23
CHINA THREE GORGES UNIV
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Problems solved by technology

There are also some studies that consider the access of electric vehicles, and use electric vehicles as single energy storage or integrated into charging and swapping stations to play the role of energy storage systems. The research is not deep enough, and it is difficult to reflect the difference between charging and swapping stations and ordinary energy storage stations
It has also been proposed to des

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  • Charge-storage integrated micro grid energy optimization scheduling method based on Stackelberg game
  • Charge-storage integrated micro grid energy optimization scheduling method based on Stackelberg game
  • Charge-storage integrated micro grid energy optimization scheduling method based on Stackelberg game

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[0026] figure 1 It is a microgrid structure diagram of a power station with integrated charge-swap-storage. The micro-grid with integrated charge-swap-storage power station is mainly composed of upper and lower layers: the upper layer is the micro-grid, which is mainly composed of three parts: wind turbines, photovoltaics, and loads, which can interact with the distribution network and the lower-layer integrated charge-swap-storage power station; the lower layer It is a charge-swap-storage integrated power station CSSIS, which is mainly composed of a charge-swap station (BCSS) and an energy storage station (ESS). The wind turbine, photovoltaic, charge-swap-storage integrated power station CSSIS is connected to the grid through inverters and circuit breakers.

[0027] In the present invention, an electric vehicle charging and swapping station and an energy storage station are combined to form a charging, swapping and storing integrated power station, which is incorporated into...

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Abstract

The invention relates to a charge-storage integrated micro grid energy optimization scheduling method based on Stackelberg game. The method comprises steps that firstly, the photovoltaic, fan and loadoutput in an upper micro grid is predicted, the internal electricity price is initialized, and whether the number of iterations k reaches the maximum number of iterations Kmax of a differential evolution algorithm (DE) is determined; secondly, according to the obtained initial internal electricity price, an optimal charging and discharging schedule of the CSSIS is obtained and fed back to the upper micro grid, the DE algorithm is utilized to calculate an upper micro grid target function CMG satisfying upper constraint conditions, the internal electricity price is subjected to mutation and intersection to generate the offspring internal electricity price, and the corresponding offspring upper micro grid target function C'MG is calculated; and lastly, an upper micro grid target function CMGand the corresponding upper micro grid target function C'MG are determined. The method is advantaged in that mutual benefit and win-win between the micro grid and the electric vehicle charge-storageintegrated power station CSSIS can be realized, and resources in the electric vehicle charge-storage integrated power station CSSIS can be more effectively utilized.

Description

technical field [0001] The invention relates to the technical field of micro-grid operation optimization, in particular to a method for optimizing the energy scheduling of a micro-grid integrated power station with charging, swapping and storing based on the Stackelberg game. Background technique [0002] At present, most researches on optimal scheduling of microgrids consider energy storage system as a flexible and schedulable object, which can be used to smooth power fluctuations during peak shaving and valley filling, or arbitrage with low storage and high power generation to achieve optimal operation. There are also some studies that consider the access of electric vehicles, and use electric vehicles as single energy storage or integrated into charging and swapping stations to play the role of energy storage systems. The exploration is not deep enough, and it is difficult to reflect the difference between charging and swapping stations and ordinary energy storage station...

Claims

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Application Information

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IPC IPC(8): H02J3/00H02J3/32G06Q10/04G06Q50/06B60L53/60B60L53/64
CPCH02J3/008H02J3/32G06Q10/04G06Q50/06B60L53/60B60L53/64H02J2203/20Y02T10/70Y02T10/7072Y02T90/12Y04S10/50Y02E40/70
Inventor 程杉徐康仪倪凯旋何黎君何畅赵孟雨闫海
Owner CHINA THREE GORGES UNIV
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