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Optimization algorithm of micro-grid energy management system based on non-cooperation game

An energy management system, a non-cooperative game technology, applied in system integration technology, information technology support system, computing, etc., can solve the problems of feasibility limitation, neglect of user's comfort level of electricity, etc., and achieve optimal utilization and economical optimization Effect

Active Publication Date: 2016-05-18
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

These literatures mainly consider the response of the user side from the perspective of the large power grid. However, due to the large scale and the lag of information technology, the proposed method load description is simple, or focuses on the consideration of the economic benefits of the user side, ignoring the user Requirements such as the comfort of electricity use, the feasibility is subject to certain restrictions

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  • Optimization algorithm of micro-grid energy management system based on non-cooperation game
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  • Optimization algorithm of micro-grid energy management system based on non-cooperation game

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Embodiment

[0022] Such as figure 1 As shown, the present invention constructs a microgrid and a microgrid energy management system. The present invention uses the YALMIP algorithm in matalb to establish a mixed integer optimization model, and its optimization flow chart is as follows figure 2 As shown, the specific steps are as follows:

[0023] Step 1: Collect microgrid meteorological data and load information data. The microgrid meteorological data includes the temperature, light intensity, and wind speed of the next day. The load information data includes demand load data and uninterruptible load data, and the microgrid Meteorological data and load information data input;

[0024] Step 2: Calculate the maximum allowable output of the photovoltaic array at the corresponding temperature and light intensity and the maximum allowable output of the fan at the corresponding wind speed according to the temperature, light intensity and wind speed, as well as the model of the photovoltaic ar...

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Abstract

The invention discloses an optimization algorithm of a micro-grid energy management system based on a non-cooperation game. The optimization algorithm includes following steps: 1) acquiring micro-grid meteorological data and load information data; 2) calculating an upper limit value of the allowed output of a photovoltaic array and an upper limit value of the allowed output of a fan at a wind speed; 3) inputting a constraint condition and an objective function, and optimizing a micro-grid; 4) obtaining the marginal cost of the optimization of the micro-grid; 5) dividing a game process of interactive game between the utility function of the micro-grid and the utility function of a user into 24 periods, and regarding the utility functions of an energy side and a user side as the objects for optimization game; and 6) finishing optimization if the deviation between a load curve obtained by the optimization and a load curve obtained by the previous optimization is less than or equal to epsilon, otherwise putting the load data of this time into step 1, and circulating step 1 to step 5 until the deviation is less than epsilon. The optimization algorithm is advantageous in that the optimization of the energy efficiency of the micro-grid is realized, and the feasibility and the adaptability are good.

Description

technical field [0001] The invention relates to an operation, simulation, analysis and scheduling technology of a power system, in particular to an optimization algorithm of a micro-grid energy management system based on a non-cooperative game. Background technique [0002] Microgrid is considered to be one of the effective ways to utilize distributed power, especially renewable energy. The International Electrotechnical Commission (IEC) clearly listed microgrid technology as one of the key technologies of the future energy chain in the "White Paper on Addressing Energy Challenges 2010-2030". Compared with the large power grid, the microgrid "multiple energy inputs (wind, light, natural gas, etc.), multiple product outputs (electricity, heat, cold), multiple conversion units (light / electricity, heat / electricity, wind / electricity) , DC / AC), multiple operating states (grid-connected / isolated)", and renewable energy has strong randomness and intermittent nature. The establish...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/46G06Q10/04G06Q50/06
CPCH02J3/381H02J3/383H02J3/386H02J3/46H02J2203/20Y02E10/56Y02E10/76Y02E40/70Y04S10/50
Inventor 曾君李晨迪陈渊睿刘俊峰
Owner SOUTH CHINA UNIV OF TECH
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