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Method and device for managing source-grid-load-storage interaction energy in micro-grid

An energy management and micro grid technology, applied in the field of micro grid, can solve the problems of low operation efficiency of micro grid in the accuracy of energy management results, and achieve the effect of realizing economical and efficient operation, improving utilization level and high accuracy

Inactive Publication Date: 2019-07-02
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the energy management of the microgrid in the prior art, generally only the power supply or only the power supply and energy storage are considered at the same time, resulting in low accuracy of energy management results and low operating efficiency of the microgrid.

Method used

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  • Method and device for managing source-grid-load-storage interaction energy in micro-grid

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Embodiment 1

[0065] The clean energy in Embodiment 1 of the present invention takes photovoltaic power generation system and natural gas as an example, and provides a method for managing the interactive energy between source, network, load and storage in the microgrid. The specific flow chart is as follows figure 1 As shown, the specific process is as follows:

[0066] S101: Obtain load demand, energy storage information and various energy supply conditions;

[0067] S102: Bring the load demand, energy storage information and energy supply into the pre-established energy management model, and solve it by genetic algorithm to obtain the output power of various energy sources and the charging and discharging power of the energy storage system;

[0068] The energy management model includes: based on load demand response, with the goal of maximizing the use of light energy and considering the balance between energy supply and demand;

[0069] Various energy supplies include: distributed energ...

Embodiment 2

[0141] Based on the same inventive concept, Embodiment 2 of the present invention also provides a source-network-load-storage interactive energy management device in a microgrid, including an acquisition module and a solution module. The functions of the above modules are described in detail below:

[0142] The acquisition module is used to acquire load demand, energy storage information and various energy supply conditions;

[0143] The solution module is used to bring the load demand, energy storage information and energy supply into the pre-established energy management model, and solve it by genetic algorithm to obtain the output power of various energy sources and the charging and discharging power of the energy storage system;

[0144] The energy management model includes: based on load demand response, with the goal of maximizing the use of light energy and considering the balance of energy supply and demand;

[0145] Various energy supplies include: distributed energy ...

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Abstract

The invention provides a method and device for managing source-grid-load-storage interaction energy in a micro-grid. The method comprises steps of obtaining a load demand, energy storage information and various energy supply situations; substituting the load demand, the energy storage information and the energy supply situations into a pre-established energy management model, solving the energy management model by a genetic algorithm to obtain the output power of various energy sources and the charging-discharging power of an energy storage system. The energy management model is constructed bytaking account of energy supply and demand balance to maximize the utilization of light energy based on a load demand response. The various energy supplies include distributed energy supply and gridsupply. The energy management result obtained by the method has high accuracy and improves the operating efficiency of the micro-grid. The method considers the source-grid-load-storage interaction relationship in the micro-grid, realizes the economical and efficient operation of the micro-grid, and improves the utilization level of clean energy. The method not only minimizes the operating cost ofthe micro-grid, but also has no negative impact on the user's power consumption experience, and improves user satisfaction and comfort.

Description

technical field [0001] The invention relates to the technical field of micro-grids, in particular to a method and device for managing source-network-load-storage interaction energy in a micro-grid. Background technique [0002] With the increasingly serious energy crisis and environmental crisis, renewable energy has been widely concerned and applied in the field of power generation. However, the large-scale direct grid connection of distributed power will lead to the instability of the power system. As an efficient and safe way to utilize clean energy, microgrid has begun to be developed and applied on a large scale. [0003] Microgrid is a new power supply method integrating renewable energy generation technology (wind power generation, photovoltaic power generation, biomass energy, tidal energy, etc.), energy management system and power distribution infrastructure. It can not only improve energy utilization efficiency and power supply security, but also reduce power loss...

Claims

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Application Information

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IPC IPC(8): H02J3/00H02J3/24H02J3/28H02J3/38
CPCH02J3/383H02J3/008H02J3/24H02J3/28H02J2310/64H02J2203/20Y02E10/56Y04S20/222Y02B70/3225
Inventor 吴鸣盛万兴寇凌峰于辉周丹潘静陈锋郑浩马金辉李端超陈实
Owner CHINA ELECTRIC POWER RES INST
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