基于模糊PID负荷跟踪型主蒸汽温度控制系统研究

doi:10.16180/j.cnki.issn1007-7820.2021.05.004

Abstract

Abstract:

In view of the problem that the traditional PID fails to realize load tracking control in real time. a fuzzy PID controller is designed by combining traditional PID control with fuzzy control. The real-time load of the generator is used as the response and input to construct a load tracking fuzzy PID main steam temperature control system. Correction values of the three parameters of the PID controller are obtained through a fuzzy algorithm, and the three parameters of the PID are adjusted online by real-time tracking load, and the main steam temperature are controlled to be stable near the set value. Load fluctuation, load mutation and smoke disturbance are performed and the experimental results show that the error between real-time system data and target temperature value is 1~2 ℃, the overshoot of the system decreases by 1.3% compared with the traditional method, and the adjustment time shortens by 33.4%. These results indicate that the proposed system has a strong load tracking ability and better robustness to load fluctuation.

Key words: main steam temperature, PID control, fuzzy control, cascade control system, tracking control, process control, generator load, thermal power unit

CLC Number:

TP391.9

REN Xinrui,MA Lixin. Research on Main Steam Temperature Control System Based on Fuzzy PID Load Tracking[J].Electronic Science and Technology, 2021, 34(5): 18-23.

Figures/Tables 11

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控制方法	调节时间/s	峰值时间/s	超调量/%
传统PID	300	27	5.1
模糊PID	200	9	3.8

控制方法	调节时间/s	峰值时间/s	超调量/%
传统PID	135	32	5.13
模糊PID	60	11	3.78

控制方法	调节时间/s	峰值时间/s	超调量/%
传统PID	160	34	5.11
模糊PID	90	13	3.81

Research on Main Steam Temperature Control System Based on Fuzzy PID Load Tracking

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References 16

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