The research of superheated steam temperature control based on generalized predictive control algorithm and adaptive forgetting factor

2019 ◽  
Vol 34 (1) ◽  
pp. 15-31 ◽  
Author(s):  
Cheng Jiang ◽  
Hong Qian ◽  
Yuekai Pan ◽  
Tingting Chai
Keyword(s):  
Predictive Control ◽  
Temperature Control ◽  
Control Algorithm ◽  
Superheated Steam ◽  
Generalized Predictive Control ◽  
Steam Temperature ◽  
Forgetting Factor ◽  
Superheated Steam Temperature ◽  
Adaptive Forgetting Factor ◽  
Adaptive Forgetting

scholarly journals Application of anti integral saturation cascade PID control algorithm in superheated steam temperature control

2021 ◽  
Vol 2087 (1) ◽  
pp. 012038
Author(s):  
Zhe Sun ◽  
Chunhui Liu ◽  
Ming Li ◽  
Junda Zhao ◽  
Yao Xu
Keyword(s):  
Temperature Control ◽  
Pid Control ◽  
Control Algorithm ◽  
Superheated Steam ◽  
Temperature Control System ◽  
Control Algorithms ◽  
Regulation System ◽  
Steam Temperature ◽  
Superheated Steam Temperature ◽  
Main Regulator

Abstract At present, most units adopt the superheated steam temperature control system with cascade PID control structure. However, because most cascade PID control algorithms have no anti-integral saturation function, the automatic control of boiler superheated steam temperature cannot be put into operation normally. On the existing cascade PID superheated steam temperature regulation system, we judge the deviation value of the main regulator and the output value of the auxiliary regulator, and cancel the integration function at an appropriate time. When the input deviation signal turns over, the regulating system can immediately enter the normal regulating state, so that the cascade PID superheated steam temperature regulating system can timely and accurately regulate the superheated steam temperature. The fuel cost is saved by about 155,600 yuan per year.

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