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Micro-grid coordinating control method considering electricity-gas interconnection

A technology of coordinated control and microgrid, applied in electrical components, circuit devices, AC network circuits, etc., to achieve the effect of improving energy utilization efficiency and system reliability, enhancing flexibility, and reducing energy storage capacity.

Inactive Publication Date: 2018-09-28
NANJING GUODIAN NANZI POWER GRID AUTOMATION CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research on electricity-gas interconnected integrated energy systems at home and abroad is still in its infancy, and the existing research results focus on the research on the source-end energy system. How to achieve the close interaction and complementary advantages of different energy forms through the coordination and cooperation between the systems is still rarely involved

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  • Micro-grid coordinating control method considering electricity-gas interconnection
  • Micro-grid coordinating control method considering electricity-gas interconnection

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0025] Such as figure 1 As shown, the microgrid considering electricity-gas interconnection includes distributed power supply, energy storage system, micro gas turbine power generation system, power-to-gas system, and loads. The power transformer is connected to the distribution network, and the micro gas turbine power generation system and the power-to-gas system in the microgrid are respectively connected to the natural gas network; among them, the micro gas turbine power generation system uses the natural gas in the natural gas network to generate electricity to realize the flow of energy from the natural gas network to the microgrid. The power-to-gas system uses the electric energy in the m...

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Abstract

The invention discloses a micro-grid coordinating control method considering electricity-gas interconnection. According to the method, a mini gas turbine power generation system and an electricity-gassystem are coordinated and controlled, so that the micro-grid and a natural gas network have complementary advantages, can help consume power produced by renewable energy, can help improve the running flexibility of the micro-grid, and improve energy use efficiency and system reliability; an energy storage system is controlled to cooperate with the mini gas turbine power generation system and theelectricity-gas system, so that the performance are fully exerted, the defect of dynamic performance of the mini gas turbine power generation system and the electricity-gas system can be overcome, and the requirement of running of the micro-grid island on stored energy capacity is lowered. The micro-grid coordinating control method considering electricity-gas interconnection is easy to realize and has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of comprehensive energy system control, and in particular relates to a micro-grid coordination control method considering electric-gas interconnection. Background technique [0002] Distributed power generation has the characteristics of intermittent, fluctuating and random, and large-scale access will pose severe challenges to the stable operation of the power system. For this reason, the concept of "microgrid" has been proposed. Microgrid can realize the effective integration of distributed power, and has the ability of self-control, protection and management. Therefore, countries around the world have carried out in-depth research, demonstration and application on microgrid. [0003] In recent years, with the rapid development of micro gas turbine power generation technology and power-to-gas technology, the coupling between power system and natural gas system has become increasingly tight, and the power-g...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02J3/46H02J3/28
CPCH02J3/28H02J3/381H02J3/388H02J3/46
Inventor 常晓勇陈福锋李玉平王玉婷徐程骥
Owner NANJING GUODIAN NANZI POWER GRID AUTOMATION CO LTD
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