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Day-ahead scheduling method of electricity-gas integrated energy system

A technology of integrated energy system and dispatching method, applied in the field of day-ahead dispatching of electric-gas integrated energy system, can solve the problem of not fully reflecting the impact of natural gas network on power network dispatching, causing dispatching costs, and low efficiency and accuracy of the solution method And other issues

Active Publication Date: 2019-07-30
GUANGDONG UNIV OF TECH
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Problems solved by technology

However, this is not accurate. The gas turbine is a coupling component in the "electricity-gas" integrated energy system, which cannot fully reflect the impact of the natural gas network on the power network dispatching.
In addition, the model of the existing "electricity-gas" integrated energy system is not perfect, and the efficiency and accuracy of the solution method are low, which will cause additional scheduling costs

Method used

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  • Day-ahead scheduling method of electricity-gas integrated energy system
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  • Day-ahead scheduling method of electricity-gas integrated energy system

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Embodiment Construction

[0096] The accompanying drawings are for illustrative purposes only, and should not be construed as limiting the present invention; in order to better illustrate this embodiment, certain components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art It is understandable that some well-known structures and descriptions thereof may be omitted in the drawings. The positional relationship described in the drawings is for illustrative purposes only, and should not be construed as limiting the present invention.

[0097] Such as figure 1 As shown, a day-ahead scheduling method for an electric-gas integrated energy system includes the following steps:

[0098] Step 1. Establish a day-ahead scheduling model for the electricity-gas integrated energy system: including establishing a power network model, establishing a natural gas network model, establishing a gas-fired unit model, establish...

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Abstract

The invention belongs to the technical field of electric power system operation and control of energy Internet, and more specifically relates to a day-ahead scheduling method of an electricity-gas integrated energy system. The method comprises the following steps: S1, establishing an electricity-gas integrated energy system day-ahead scheduling model, including establishing a power network model,establishing a natural gas network model, establishing a gas turbine set model, establishing a non-gas turbine set model and establishing a system operation cost minimum model; S2, performing constraint processing on the electric-gas integrated energy system day-ahead scheduling model established in the step S1; and S3, solving the model: firstly obtaining a rough solution by using a penalty function solving model, then solving the model by using a Taylor series method, and forming iterative optimization by using sequential second-order cone programming. The penalty function method and the Taylor series method are combined, and the sequential second-order cone programming method is utilized, a set of day-ahead scheduling algorithm of the electricity-gas integrated energy system is designed. The algorithm has good convergence and accuracy, and the calculation time is prolonged.

Description

technical field [0001] The present invention relates to the technical field of power system operation and control for energy Internet, and more specifically, relates to a day-ahead scheduling method for an electric-gas integrated energy system. Background technique [0002] As the core technology of the third industrial revolution, the Energy Internet tries to combine renewable energy technology and Internet technology to promote the large-scale utilization and sharing of distributed renewable energy, and promote the integration of various complex network systems such as electricity, transportation, and natural gas. , and ultimately achieve the goal of changing the energy utilization pattern and promoting sustainable economic and social development. Compared with other primary energy sources, natural gas is economical, environmentally friendly, and has abundant reserves. The proportion of combined cycle gas turbine power generation has gradually increased in recent years, an...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/06313G06Q50/06Y04S10/50
Inventor 许洋吴皖莉胡益夫王逸飞赖来利
Owner GUANGDONG UNIV OF TECH
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