Multi-energy complementary combined cooling heating and power microgrid framework and modeling method thereof

Abstract

The invention relates to a multi-energy complementary combined cooling heating and power microgrid framework and a modeling method thereof. The invention relates to the technical field of multi-energycomplementary combined cooling heating and power supply micro-grids, in particular to a multi-energy complementary micro-grid which is a comprehensive energy network system provided with a protectiondevice and integrating various energy supply devices, loads, energy conversion devices, cooling heating and power energy storage devices and the like. Based on the microgrid energy management system,self-control and self-management can be achieved, autonomous selection can be achieved, the microgrid energy management system and a large power grid are standby for each other, energy is provided for cold/heat/electric loads in a region, the energy supply requirement is met, and reliable and economic energy supply of the microgrid is achieved. The multi-energy complementary micro-grid can supplyvarious energy sources such as cold, heat and electricity at the same time, different energy sources can be mutually converted or used in a gradient mode, and the energy utilization efficiency in a region is improved to the maximum extent. Compared with the energy supply mode of the traditional micro-grid, the multi-energy complementary micro-grid has obvious advantages.

Description

technical field [0001] The invention relates to the technical field of multi-energy complementary combined cooling, heating and power micro-grid technology, and relates to a multi-energy complementary combined cooling, heating and power micro-grid framework and a modeling method thereof. Background technique [0002] In China, many institutions have carried out research on multi-energy complementary issues for many years. In 1982, solar energy conversion devices and wind power generators were proposed. Since then, research on wind-solar hybrid power generation systems has entered a mature stage. In 2004, Huaneng Nan'ao's 54MW wind-solar hybrid power plant was successfully integrated into the power grid, becoming the first wind-solar hybrid system to formally participate in commercial operation in China. [0003] However, during the operation of the micro-grid demonstration platform, it was gradually discovered that the micro-grid has problems such as low energy density of di...

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Problems solved by technology

[0005] Therefore, the multi-energy complementary micro-grid has the advantages of wind-solar-storage power generation system (micro-grid) and cooling, heating and power interconnection system. It can not only fully absorb renewable energy, but also make full use of cost-effective natural gas energy to realize energy cascade utilization. Ultimately meet the energy consumption of various loads, but the research on its scheme design and modeling methods is still in its infancy

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