Interval power flow calculating method of heat supply network in electrical-thermal coupled system

Abstract

The invention relates to an interval power flow calculating method of a heat supply network in an electrical-thermal coupled system, and belongs to the technical field of operation safety analysis of a multi-energy-flow coupled system. On one hand, the method, by adopting an interval power flow analysis method, provides basis for safe and stable control of the coupled energy system or pipeline planning with the influence of wind power uncertainty on steady operation of other energy networks (thermal network) being taken into consideration under development tendency of coupled operation of a plurality of energy systems; and on the other hand, the method prevents a lot of data statistics and complex mathematic model and calculation, and meanwhile, the method only needs interval information and does not need to estimate membership information and the like, thereby preventing errors due to artificial hypothesis subjectivity. The method can be applied to energy management of the electrical-thermal coupled multi-energy-flow system; and when the system has a safety problem or a potential risk, a safety warning is given, thereby facilitating improving safety of the operation of the electrical-thermal coupled multi-energy-flow system.

Description

technical field [0001] The present invention relates to a method for calculating the interval power flow of a heating network in an electric-thermal coupling system, in particular to a method for calculating the interval power flow of a heating network in an electric-thermal coupling system based on wind power uncertainty, which belongs to the operation of a multi-energy flow coupling system The field of security analysis technology. Background technique [0002] With the limitation of environmental pollution and energy resources, the wide application of renewable clean energy has become an inevitable trend of future power energy supply. However, these renewable energy sources are highly uncertain, the power generation is not easy to control, and the connection to the grid is likely to cause grid fluctuations. Therefore, only using the grid as the carrier of energy transmission has gradually been unable to meet the demand. In this case, the Energy Internet, which transmits ...

AI Technical Summary

Problems solved by technology

However, the output of wind turbines will be limited by the random changes in real-time wind resources and cannot provide continuous and stable power. Therefore, wind power is an unreliable power source with volatility, randomness, intermittent and difficult scheduling.

Images