Random optimization method of power-gas integrated energy system

An energy system, stochastic optimization technology, applied in system integration technology, information technology support system, computer parts and other directions, can solve the problem of high cost of thermal power

Inactive Publication Date: 2018-12-07
STATE GRID ZHEJIANG ELECTRIC POWER +2
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Problems solved by technology

In the existing "bundling" coordinated control method of wind and thermal power, the cost of thermal power participating in wind power regulation is relatively high

Method used

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  • Random optimization method of power-gas integrated energy system
  • Random optimization method of power-gas integrated energy system
  • Random optimization method of power-gas integrated energy system

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Embodiment Construction

[0101] In order to better understand the purpose, technical solution and technical effect of the present invention, the present invention will be further explained below in conjunction with the accompanying drawings.

[0102] The present invention proposes a method for stochastic optimization of the electrical-gas integrated energy system that takes into account the random characteristics of wind power output, and its implementation process is as follows Figure 12 Shown, including the following detailed steps:

[0103] Step 1. Establish an electric-gas integrated energy system including P2G devices, gas units and renewable energy generating units

[0104] The basic structure of IEGES is attached figure 1 As shown, the two systems realize the two-way flow of energy through the P2G device and the gas unit. The dotted line in the figure can be regarded as a generalized energy hub (EH), which realizes the conversion and storage of energy.

[0105] With the gradual increase in ...

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Abstract

The invention discloses a random optimization method of power-gas integrated energy system. The method comprises that the power-gas integrated energy system is established, a p2G device and a combustion gas set realize bidirectional coupling and closed-loop operation of power and natural gas systems; a rapid search density clustering algorithm is used to carry out scene clustering on historical wind speed data to process a random characteristic of wind power output; an optimized operation model, considering the random characteristic of wind power output, of the power-gas integrated energy system is established and aimed at minimizing the operation cost of the system; and operation requirements of the power system, the natural gas system and a coupling node between the two systems are takeninto consideration to determine an operation constraint condition of the whole power-gas integrated energy system. The random characteristic of wind power output is considered, the P2G device is introduced to improve the operational flexibility of the power system and the natural gas system, and a new approach is provided for power generation via intermittently renewable energy as absorptive windpower.

Description

technical field [0001] The invention belongs to the field of energy system optimization, in particular to a method for stochastic optimization of an electric-gas integrated energy system taking into account the random characteristics of wind power output. Background technique [0002] For a long time, my country's coal-based energy consumption structure has brought about rapid economic and social development, but it has also had a serious negative impact. Nowadays, environmental issues such as "smog" and sustainable development that people are paying more and more attention to require that my country's energy consumption structure must be gradually improved, that is, in the primary energy consumption structure, the proportion of coal should be continuously reduced, and the proportion of wind power, photovoltaic power generation, and hydropower should be gradually increased. and clean energy such as natural gas power generation, especially the proportion of renewable energy po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06G06K9/62
CPCG06Q10/04G06Q50/06G06F18/2321Y04S10/50Y02E40/70
Inventor 李继红陈锡祥郑伟民李志强孙可张利军徐晨博孙轶恺邹波薛友李杨高滢文福拴
Owner STATE GRID ZHEJIANG ELECTRIC POWER
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