Distributed power heat supply system based on active disturbance rejection control and method of system

Abstract

The invention relates to a distributed power heat supply system based on active disturbance rejection control and a method of the system. The method is characterized in that the distributed power heatsupply system serves as a controlled object for analysis, and the input and output amount and control amount are determined; through a tracking differentiator in active disturbance rejection control,the reference input of the controlled object is subjected to a transient process, and differential signals of the reference input are extracted; through an expansion state observer (ESO) in the active disturbance rejection control, uncertain factors and external disturbance in a distributed power heat supply system model are subjected to dynamic observation and estimation; through a nonlinear state error feedback control rule in the active disturbance rejection control, the control amount of the system is formed, and the anti-interference capability of the control is improved; all parts in the control process are subjected to parameter setting, so that the active disturbance rejection control method of the distributed power heat supply system is achieved. The distributed power heat supplysystem has a large effect of pushing forward the enforcement of the governmental policy and guideline about power replacement, the discharge of urban pollutants is significantly reduced, and the quality of the living environment of people is improved.

Description

technical field [0001] The invention belongs to the technical field of electric heating systems, and relates to a distributed electric heating system and method, in particular to a distributed electric heating system and method based on active disturbance rejection control. Background technique [0002] In recent years, severe smog has occurred frequently in my country, and the concentration of PM2.5 has seriously exceeded the standard. Studies have shown that burning coal and fuel oil is an important factor causing environmental pollution, while electric energy is currently the cleanest and most widely recognized energy source in the world. Therefore, to eradicate smog, the key lies in the development of a distributed electric heating system with strong immunity to reform the unreasonable energy structure dominated by coal and implement the strategy of replacing electric energy. [0003] Electric heat supply technology uses high-grade energy such as a small amount of elect...

AI Technical Summary

Problems solved by technology

However, under the existing technology, the decentralized electric heating system has problems such as incomplete models, poor system configuration and control methods, etc.

Moreover, during the operation of the system, there are many external interference factors and the internal working process is complicated, which makes the operating conditions often deviate from the set value, resulting in high energy consumption and low efficiency of the system, making it difficult to apply on a large scale

[0004] After searching, no published patent documents identical or similar to the present invention were found

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