Coordination control method for renewable energy hybrid heat-power station system

Abstract

The invention discloses a renewable energy hybrid heat-power station coordination control method, which comprises the following steps of: according to direct current bus voltage, inductive current of a battery and an electric boiler converter, liquid level height and temperature of each position of in-station heat cycle, water supply temperature and user side outdoor temperature detected by a system in real time; according to the double-layer coordination control method, a battery converter and an electric heating boiler converter are controlled based on the basic principle of a direct-current motor and the basic characteristics of system operation, and heat energy flow control based on the mass flow of a heat storage medium in heat circulation in a regulating station is adopted, so that the heat load requirement is met by regulating the working medium flow of the heat energy flow; and the controllability and the flexibility of the thermodynamic system are improved. According to the method, stable and reliable operation of the system can be effectively guaranteed, the multi-energy demand of a user is met, and the stability of the system and the absorption capacity of renewable energy are improved.

Description

technical field [0001] The invention belongs to the field of electrical engineering, and more particularly, relates to a coordinated control method of a renewable energy hybrid thermal-power station system. Background technique [0002] At present, problems such as traditional overcapacity, shortage of fossil energy resources, and serious abandonment of wind and solar energy seriously restrict the development of the energy industry. It is urgent to carry out research on the coordinated control method of the cogeneration system with a high proportion of renewable energy, so as to improve the capacity of renewable energy consumption and the stable operation of the system. [0003] The cogeneration system makes full use of the complementary characteristics of electric energy and thermal energy, and realizes the coordinated supply and comprehensive utilization of electricity and heat. The energy source in the hybrid thermal-power station is renewable energy power generation, an...

AI Technical Summary

Problems solved by technology

Existing control methods cannot comprehensively consider the operation and control characteristics of energy storage devices, thermoelectric conversion devices and other equipment in thermal-power stations, cannot give full play to the advantages of the combination of electric and thermal systems, and lack the control to support the stable and reliable operation of hybrid thermal-power stations method

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