Power-plant digital-physical hybrid simulation model used for machine-network coordination analysis

Abstract

Provided is a power-plant digital-physical hybrid simulation model used for machine-network coordination analysis. On one hand, a digital simulation model is adopted for simulating a generator system, a steam turbine system, a body part of a boiler system and a thermodynamic cycle main body device and system of a power plant, and power-plant virtual control system software is adopted for simulating a control system; on the other hand, a critical component of a hydraulic servo mechanism of the control system is composed of physical entity equipment; the physical entity equipment has data exchange with the digital simulation model and the power-plant virtual control system software through a high-speed data acquisition card. The power-plant digital-physical hybrid simulation model enables a conventional digital-physical hybrid model to be improved and is specially used for machine-network coordination analysis, and practice shows that the power-plant digital-physical hybrid simulation model can effectively guide design and operation of an actual system.

Description

technical field [0001] The invention relates to a digital-physical hybrid simulation model of a power plant used for machine-network coordination analysis. Background technique [0002] Machine-network coordination is the main means to maintain the safe and stable operation of the power grid. Through machine-network coordination, indicators such as grid frequency, voltage, and tie-line control accuracy can be better maintained, especially when the regional grid interconnection trend is getting stronger, the single-unit capacity of thermal power units is getting larger, and the role of new energy such as wind power and nuclear power is increasing. It is becoming more and more obvious that when the requirements for frequency modulation and peak regulation capabilities of thermal power units are getting higher and higher, the role of machine-network coordination in improving system stability and ensuring power supply quality is more obvious. [0003] Establishing a simulation ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a power plant digital-physical hybrid simulation model for machine-network coordination analysis, which is more accurate than the traditional power plant simulation model for machine-network coordination analysis. More factors are considered. On the basis of the complex power plant simulation model, the secondary auxiliary system that has nothing to do with the coordination of the machine network is removed, and the main problem is highlighted, which is more targeted.

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