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Electricity-gas interconnection system including electricity-to-gas transfer device, and operation method

A technology of interconnected systems and operating methods, applied in the field of energy Internet, can solve problems such as ignoring system reliability, stability, low carbon and pollutant control

Active Publication Date: 2019-03-19
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ignoring system reliability, stability (net load fluctuation), low carbon and pollution control, etc. (or only considering one of them)

Method used

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  • Electricity-gas interconnection system including electricity-to-gas transfer device, and operation method
  • Electricity-gas interconnection system including electricity-to-gas transfer device, and operation method
  • Electricity-gas interconnection system including electricity-to-gas transfer device, and operation method

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Embodiment Construction

[0090] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0091] The electrical-gas interconnection system including P2G devices involves the interconnection and coupling of two different energy networks. The exchange of energy is realized through P2G and gas turbines. When using P2G technology to convert electrical energy into hydrogen or methane, the P2G devices are both grid loads. , is also the gas source of the natural gas network; when the gas turbine is used to convert natural gas into electrical energy, the gas tur...

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Abstract

The invention discloses an operation method of an electricity-gas interconnection system including an electricity-to-gas transfer device. The method comprises the steps: establishing a multi-objectiveoptimization scheduling model with the minimum grid cost and the minimum discharge amount according to grid parameters; establishing a multi-objective optimization operation model with the minimum natural gas network cost and minimum carbon dioxide emission according to natural gas network parameters; and adjusting the output parameters of a gas turbine when the pressure of a node where the gas turbine is located is crosses the boundary. In addition, the present invention also discloses the electricity-gas interconnection system including the electricity-to-gas transfer device. The technicalscheme of the invention achieves the purposes of reducing wind abandonment and improving wind power consumption rate, achieves the stable, energy-saving, low-carbon and environment-friendly operationof the electricity-gas interconnection system, achieves the effective utilization of the wind energy under the background of the energy Internet and the clean low-carbon safe and efficient operation of the electricity-gas interconnection system.

Description

technical field [0001] The invention relates to the technical field of energy Internet, in particular to an electric-gas interconnection system and an operation method including a power-to-gas device. Background technique [0002] With the further acceleration of the world's energy low-carbonization process, and the increasingly serious problems of energy crisis and environmental pollution, natural gas and non-fossil energy have become the main direction of world energy development. In recent years, renewable clean energy such as wind energy and solar energy has been vigorously developed around the world, and the development of wind power in my country is particularly rapid. It is estimated that the installed capacity of wind power in my country will reach more than 210 million kilowatts in 2020. However, due to the intermittency and uncertainty of wind power and the insufficient peak-shaving capacity of the power system, it is difficult to meet the requirements of large-sca...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02J3/46H02J3/28G06Q10/06G06Q50/06
CPCG06Q10/06312G06Q50/06H02J3/386H02J3/28H02J3/46H02J2203/20Y02E10/76Y02E70/30
Inventor 刘静
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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