A control method and system for an AC-DC hybrid distributed renewable energy system

An AC-DC hybrid and renewable energy technology, which is applied in the direction of AC-DC network circuit layout, transportation and packaging, electric vehicles, etc., can solve problems such as unfavorable power grids, peak shaving and valley filling

Active Publication Date: 2021-07-06
DONGGUAN UNIV OF TECH
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  • Abstract
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Problems solved by technology

This characteristic is not conducive to the use of electric vehicles as a regulation capacity to achieve peak-shaving and valley-filling of the power grid

Method used

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  • A control method and system for an AC-DC hybrid distributed renewable energy system
  • A control method and system for an AC-DC hybrid distributed renewable energy system

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Embodiment

[0043] see figure 1 , is a kind of microgrid control provided by the embodiment of the present invention, such as figure 1 As shown, the method includes acquiring data information stored in a microgrid management system connected to a microgrid, the microgrid being an AC / DC hybrid microgrid; the data information includes microgrid load information, distributed energy generation information, and Electric vehicle historical data information;

[0044]Extracting the electric vehicle characteristic value data contained in the electric vehicle historical data information, determining the user response willingness according to the electric vehicle characteristic value data, and classifying the user response willingness from high to low order;

[0045] According to the microgrid load information and the distributed energy generation information, respectively predict the microgrid load trend and the distributed energy generation trend to obtain the microgrid load trend prediction resu...

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Abstract

The invention discloses a control method and system for an AC / DC hybrid distributed renewable energy system. The method includes acquiring data information stored in a microgrid management system connected to a microgrid, the data information including microgrid load information, Distributed energy generation information and electric vehicle historical data information; extract the electric vehicle characteristic value data contained in the electric vehicle historical data information, determine user response willingness according to the electric vehicle characteristic value data, and store the user response willingness Willingness levels are divided in order from high to low. The method provided by this application adopts the division of response degree of electric vehicle users, collects historical data and real-time data to predict the response degree of regional users within a period of time, and feeds back to the power grid dispatching system. Notify electric vehicle users in real time to respond to grid adjustments. The randomness and uncertainty of the charging behavior of electric vehicle users in the prior art are avoided, and the electric vehicle can be exchanged with the power grid purposefully and accurately.

Description

technical field [0001] The invention relates to the technical field of electric vehicle charging control, in particular to a control method and system for an AC / DC hybrid distributed renewable energy system. Background technique [0002] Now all countries in the world are vigorously developing the electric vehicle (Electric Vehicles EVs) industry, and many countries have introduced a timetable for stopping the sale of traditional internal combustion engine vehicles. This policy will inevitably lead to a massive increase in the number of electric vehicles. A large number of vehicle charging will bring a new round of rapid growth in electricity load, which will increase the pressure on power generation, transmission, and distribution for the power system with increasing peak and valley differences in electricity load. The V2G (Vehicle-to-Grid) technology is to use EVs as a distributed energy source, and the dual role of the load to realize the two-way flow of energy. Operati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J4/00B60L55/00
CPCH02J4/00
Inventor 康丽梁倍铭刘国中张兆云张志赵洋
Owner DONGGUAN UNIV OF TECH
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