Modeling method for micro-grid intraday scheduling plan mixed integer programming model

A technology of mixed integer programming and scheduling planning, applied in computing, data processing applications, instruments, etc., can solve problems such as being divorced from engineering practice and ignoring the reactive power output characteristics of distributed power sources.

Inactive Publication Date: 2015-08-12
SOUTH CHINA UNIV OF TECH +1
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Problems solved by technology

However, if the limit value constraint equation is simply established for the reactive output constraints of distributed power, the complex reactive output characteristics of distributed power are ignored, which is out of the engineering reality.

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  • Modeling method for micro-grid intraday scheduling plan mixed integer programming model
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  • Modeling method for micro-grid intraday scheduling plan mixed integer programming model

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Embodiment

[0072] The mixed integer programming model of microgrid intraday scheduling plan based on analytic geometry of the present invention, such as figure 1 shown, including the following steps:

[0073] Step 1. Construct the objective function of the mixed integer programming model of the intraday scheduling plan of the microgrid, that is, under the condition of satisfying the normal operation constraints, by reasonably arranging the output of each controllable unit, the total cost of system operation is minimized. The specific steps are as follows:

[0074] details as follows:

[0075] f obj =min Σ t ∈ T Σ ii ∈ I C deii , t + Σ t ∈ ...

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Abstract

The invention discloses a modeling method for a micro-grid intraday scheduling plan mixed integer programming model. The method comprises following steps: 1. constructing an objective function for the micro-grid intraday scheduling plan mixed integer programming model; 2. constructing linear constraint equations of active and reactive power generation for a diesel synchronous generator; 3. constructing linear constraint equations of active and reactive power generation for an inverter grid-connected distributed power source; 4. constructing linear constraint equations of active and reactive power generation for a double-fed induction blower fan; 5. constructing linear power flow equations considering voltage amplitudes; 6. constructing branch capacity linear constraint equations; and 7. forming the micro-grid intraday scheduling plan mixed integer programming model with the combination of existing linear constraints of the micro-grid and solving the model through mixed integer programming solving software. By employing the modeling method, the solving complexity of a micro-grid intraday scheduling plan problem can be effectively reduced, the calculation speed is rapid, the solving accuracy is high, and the engineering practical operability is high.

Description

technical field [0001] The invention relates to a modeling method for a micro-grid intraday scheduling model, in particular to a modeling method for a micro-grid intraday scheduling mixed integer programming model. Background technique [0002] As an effective means to exert the efficiency of distributed power generation, microgrid technology has become a hot spot in the current smart grid theory and technology research. The operation mode of the microgrid is flexible, with two modes of operation, grid-connected and isolated, and can realize seamless switching between the two modes of operation as required. However, microgrid energy management has its own complexity. It not only needs to ensure the economical, safe and stable operation of microgrid under the premise of meeting the load demand and power quality, but also coordinates the output of power sources with different response speeds and smoothes the wind power and photovoltaic power in the grid. Uncertainty, especial...

Claims

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Application Information

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IPC IPC(8): G06Q50/06
Inventor汪隆君许海林王钢丁茂生
OwnerSOUTH CHINA UNIV OF TECH