Method for establishing comprehensive energy system random optimization model considering scene simulation

Abstract

The invention discloses a method for establishing a comprehensive energy system random optimization model considering scene simulation. The method comprises the following steps: processing uncertaintyof wind-solar power supply output and thermoelectric load prediction by using a scene analysis technology in random optimization; carrying out latin hypercube sampling according to source load probability distribution to obtain various operation scenes in different time periods through simulation, then carrying out clustering reduction on the scenes through a Kmeans clustering algorithm, and therefore constructing a typical operation scene set used for system operation optimization. Based on operation scene set, the overall economy of system operation is taken as a target; meanwhile, the overall energy efficiency level and the new energy consumption capability of the system are considered, a distributed comprehensive energy system random optimization model is constructed, a random optimization problem is converted into a deterministic optimization problem in different operation scenes, operation strategies in different optimization periods are generated, the model complexity is simplified, and the economy and the safety stability of the system under the influence of uncertain factors are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of integrated energy systems, and in particular relates to a method for establishing a stochastic optimization model of an integrated energy system considering scenario simulation. Background technique [0002] As an important carrier of the Energy Internet, the Integrated Energy System (IES) integrates a variety of distributed energy systems including combined cooling, heating and power energy stations, renewable energy power generation systems, etc., to improve the comprehensive utilization of energy and promote renewable energy. The consumption of energy and the realization of stepwise utilization of energy are of great significance, and its development has attracted extensive attention from the international community. [0003] At present, many studies have been carried out on the modeling and operation optimization of integrated energy systems. The research on these optimized operation models and strat...

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Problems solved by technology

The research on these optimized operation models and strategies is mostly aimed at the energy hub infrastructure equipment in a certain and single operation scenario. The consideration of the complex operation conditions brought about by the deep coupling of multi-energy systems is still relatively lacking, and it is difficult to take into account the impact of different scenarios on system security. The influence of economic operation, so its operation optimization strategy often has certain limitations

[0004] The construction of an integrated energy system provides a new way for the consumption of large-scale renewable energy, but the coupling of multi-energy systems and the access of renewable energy will also greatly increase the complexity and uncertainty of system operation. The optimized operation of the

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