Thermal-electric coupling multi-energy flow system power risk assessment method based on interval method

A technology of risk assessment and multi-energy flow, applied in the field of risk assessment of integrated energy systems, which can solve problems such as the high complexity of multi-energy flow risk assessment

Active Publication Date: 2018-08-24
BEIJING KING STAR +1
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  • Application Information

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Problems solved by technology

The risk assessment of multi-energy flow system needs to consider the coupling effect between various energy flows, and the uncertainty of renewable ener

Method used

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  • Thermal-electric coupling multi-energy flow system power risk assessment method based on interval method
  • Thermal-electric coupling multi-energy flow system power risk assessment method based on interval method
  • Thermal-electric coupling multi-energy flow system power risk assessment method based on interval method

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Embodiment Construction

[0064] The thermal-electrical coupling multi-energy flow system power risk assessment method based on the interval method proposed by the present invention includes the following steps:

[0065] (1) Establish an electric-thermal coupling multi-energy flow system operation randomness model:

[0066] Assuming that the electric-thermal coupling multi-energy flow system includes S cogeneration units, E electric energy storage devices, H thermal energy storage devices, L1 electric loads, L2 heat loads and P photovoltaic power plants, electricity- The thermally coupled multi-energy flow system is connected to the external power grid through tie lines;

[0067] The electro-thermal coupling multi-energy flow system involved in the method of the present invention is such as figure 1 As shown, the inside of the frame is the interior of the multi-energy flow park, and the various components in the park can be combined and integrated into energy stations, renewable energy stations (photo...

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Abstract

The invention relates to a thermal-electric coupling multi-energy flow system power risk assessment method based on an interval method, and belongs to the technical field of risk assessment of the comprehensive energy system. According to the risk assessment method, a multi-energy flow system equipment model and a multi-energy flow system stochastic model are established, the consumption effect ofoptimal scheduling of the energy storage equipment and the flexible unit in the system on the uncertainty is considered and the interval method solving the stochastic problem is given, and the size of the risk of the uncertainty of the renewable energy source and the uncertainty of energy consumption of the electricity user and the heat user in a day in the future on the multi-energy flow systempower balance is calculated. According to the method, the operation risk of the electric-thermal coupling multi-energy flow system can be more accurately calculated so that the operation safety can beenhanced, the operation cost of the multi-energy flow system can be reduced, and certain contribution is made for searching multi-consumption of the renewable energy source and multi-energy system joint scheduling.

Description

technical field [0001] The invention relates to a thermal-electrical coupling multi-energy flow system power risk assessment method based on an interval method, and belongs to the technical field of risk assessment of comprehensive energy systems. Background technique: [0002] The multi-energy flow system covers multiple energy flow subsystems such as electricity, heat, cooling, and air. Each subsystem is converted and coupled together through combined cooling, heating and power (CHP / CCHP), heat pumps, and other equipment. The rise of the Energy Internet in recent years has made the multi-energy network that transmits energy in various forms of electricity, heat, cold, and air show its superiority. On the one hand, the establishment of a multi-energy flow system has considerable benefits. On the other hand, the multi-energy coupling also leads to the interaction of uncertain factors in each subsystem, which will affect the normal energy consumption of users, and even affect...

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06313G06Q10/0635G06Q50/06
Inventor 孙宏斌王莉郭庆来熊文刘育权蔡莹吴任博华煌圣曾顺奇王彬车浩田沈欣炜
Owner BEIJING KING STAR
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