Real-time optimal scheduling method for combined heat and power system

Abstract

The invention discloses a real-time optimal scheduling method for a combined heat and power system, and the method comprises the steps: building an intra-day real-time scheduling model of the combinedheat and power system according to the technical parameters of all elements in the combined heat and power system, and reconstructing the intra-day real-time scheduling model of the combined heat andpower system into a Markov decision process; and constructing an optimal operation cost function of the combined heat and power system from the t moment to the T moment of the total scheduling domainin the St state as shown in the specification, solving a Markov decision process by minimizing the optimal operation cost function based on the state variable St of the combined heat and power systemat the t moment and combining random factors of the combined heat and power system at the t moment, obtaining an optimal decision of the combined heat and power system at the t moment, wherein aggregated state variables after decision making are shown in the specification. According to the method, the difficulty of mapping the state variable into the value function is greatly reduced by adoptinga state variable aggregation mode, the problem of dimensionality disaster of a system state space is solved, and real-time optimal scheduling can be quickly and accurately carried out on the combinedheat and power system.

Description

technical field [0001] The invention belongs to the field of electrical engineering, and more specifically relates to a real-time optimal scheduling method for a combined heat and power system. Background technique [0002] With the decline of fossil energy such as coal and petroleum, renewable energy such as wind energy and light energy is vigorously developed. In order to improve energy utilization efficiency, integrated energy grids have received more and more attention. As a kind of integrated energy network, combined heat and power system has been developed rapidly in recent years. However, with the continuous development of the combined heat and power system, since the power system and the thermal system are two energy networks with different physical properties, how to play the role of thermoelectric synergy in the combined heat and power system is our focus, and in the real-time operation of the combined heat and power system When , due to the randomness of wind po...

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Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a real-time optimal scheduling method for the combined heat and power system. Technical Problems of Real-time Optimal Scheduling

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