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Optimized dispatching method and device for combined cooling and power supply type micro-grid

A technology of combined cooling and power supply and optimal dispatching, applied to circuit devices, electrical components, AC network circuits, etc., can solve problems such as high loss, difficulty in long-distance transmission of cold flow, and difficulty in direct exchange of cold energy

Pending Publication Date: 2021-07-23
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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Problems solved by technology

[0005] This application provides an optimal scheduling method and device for a combined cooling and power supply microgrid, which can be used to solve the problem of large-scale buildings in the prior art. It is quite difficult to directly exchange cold energy, and the problem of high loss

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Embodiment Construction

[0062] Next, the technical solutions in the present application embodiment will be described in the present application embodiments, clearly, as described, as described herein, only the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative labor, are the scope of the present application.

[0063] The first embodiment of the present application provides a method of optimizing a cold electrical supply type microgrid, see figure 2 and Figure 5 The method includes:

[0064] Step S11, a cold power supply system includes a plurality of ice-free cooling air conditioners connected to a power generation device and an ice-free vehicle in a plurality of ice-free air conditioners; power generation devices include, but are not limited to, wind power devices I, micro gas turbine II, photovoltaic power generation device III.

[0065] Step S12, construct...

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Abstract

The invention provides an optimized dispatching method and device for a combined cooling and power supply type micro-grid. The method comprises the following steps: constructing a combined cooling and power supply system; constructing a first constraint condition and a second constraint condition according to the combined cooling and power supply system; constructing a third constraint condition and a fourth constraint condition according to the combined cooling and power supply system; constructing a day-ahead scheduling model according to the combined cooling and power supply system, wherein the day-ahead scheduling model is used for minimizing the operation cost consisting of the power generation cost of a power generation device and the transportation cost of an ice transportation vehicle; constructing a real-time scheduling model according to the combined cooling and power supply system, wherein the real-time scheduling model is used for optimizing the operation cost of a micro-grid; performing linear conversion on the day-ahead scheduling model and the real-time scheduling model; and calculating a day-ahead scheduling model and a real-time scheduling model after linear conversion according to a Lagrange solution. By the adoption of the scheme, long-distance transmission of cold flow is avoided, the cold energy exchange difficulty and loss between different cooling systems are reduced, and the refrigeration requirement of the cold energy receiving side is met.

Description

Technical field [0001] The present application relates to the field of energy control technology, and more particularly to a method and apparatus for optimizing a cold electrical supply type microgrid. Background technique [0002] With the continuous development of the economy, many countries have faced severe challenges in slowing climate change and reducing energy supply. A core solution for reducing greenhouse gas emissions and increasing energy efficiency is to use distributed energy systems. Among them, the cold electrical distributed supply power system is suitable for direct construction of a small, small-scale end user, and powering the user, cooling. The cold electricity network has the advantages of energy level according to high efficiency, reliable supply, good economic benefits, environmentally friendly. The economic operation of the cold electricity joint system is not only related to the size of the cold load and the electric load, but also related to the factors ...

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Application Information

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IPC IPC(8): H02J3/46
CPCH02J3/466H02J2203/20
Inventor 袁兴宇梁俊宇杨洋严玉廷
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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