Two-stage coordinated optimization and control-based running method of combined cooling heating and power supply type microgrid

A technology of combined cooling, heating and power supply and operation method, which is applied in the direction of single-network parallel feeding arrangement, AC network with energy trade/energy transmission authority, electrical components, etc., which can solve the adverse effects of system economic operation and ensure safe and stable operation of the system Threats, deviations from day-ahead or intra-day scheduling issues, etc.

Active Publication Date: 2017-03-15
SOUTHEAST UNIV
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Problems solved by technology

Due to the random characteristics of renewable energy and user load, there will be a certain deviation between the actual value and the predicted value in real-time operation, res

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  • Two-stage coordinated optimization and control-based running method of combined cooling heating and power supply type microgrid
  • Two-stage coordinated optimization and control-based running method of combined cooling heating and power supply type microgrid
  • Two-stage coordinated optimization and control-based running method of combined cooling heating and power supply type microgrid

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Embodiment Construction

[0097] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be described in detail below in combination with the accompanying drawings and implementation examples. It should be understood that the specific implementation cases described here are only used to explain the present invention, and are not intended to limit the invention.

[0098] A combined cooling, heating and power microgrid operation method based on two-stage coordinated optimization and control in an embodiment of the present invention belongs to the field of combined cooling, heating and power systems. like figure 2 Shown is a schematic diagram of the segmental linearization of the thermoelectric efficiency curve of the microgrid gas turbine in the combined cooling, heating and power microgrid. In the figure, a certain number of line segments are used to linearly interpolate the thermoelectric efficiency curve of the micro gas turbine ...

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Abstract

The invention discloses a two-stage coordinated optimization and control-based running method of a combined cooling heating and power supply type microgrid. The running method comprises the steps of 10) performing inter-day rolling dispatching of the combined cooling heating and power supply type microgrid, in which optimal dispatching is performed by taking minimum running cost of the combined cooling heating and power supply type microgrid as an optimal target and combining forecast renewable energy generation power and load demand according to a running constraint condition of the system, and rolling output of each equipment and electricity purchase or sale quantity from a power grid are determined; and 20) building a real-time dispatching module of the combined cooling heating and power supply type microgrid, correcting an inter-day rolling dispatching result by taking dispatching fluctuation penalty-based minimum running cost of the combined cooling heating and power supply type microgrid as the optimal target and combining the renewable energy generation power and a load demand real-time value according to a real-time running constraint condition, and determining real-time output of each equipment in the combined cooling heating and power supply type microgrid and an electricity purchase or sale quantity real-time value. By the running method, the purpose of running economy and stability of the combined cooling heating and power supply type microgrid is achieved.

Description

technical field [0001] The invention belongs to the field of combined cooling, heating and power supply systems, and specifically relates to a combined cooling, heating and power supply microgrid operation method based on two-stage coordinated optimization and control. Background technique [0002] Due to its outstanding advantages in economy, energy efficiency and environmental protection, the combined cooling, heating and power system has become a rapidly developing new energy industry at home and abroad. The combined cooling, heating and power microgrid is installed on the user side in various ways such as small-scale, small-capacity, and modularization. It can provide three different forms of energy, cold, heat, and electricity, and can meet various load needs of users. At the same time, the combined cooling, heating and power microgrid uses non-polluting natural gas energy, which has a high energy utilization rate, and can be connected to new energy sources such as wind...

Claims

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Application Information

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IPC IPC(8): H02J3/46H02J3/00
CPCH02J3/008H02J3/46
Inventor 顾伟陆帅骆钊吴志王珺
Owner SOUTHEAST UNIV
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