Intelligent Track Guide Control for Hearth Negative Pressure

Abstract:

Hearth negative pressure is an important indicator of steam boiler. It's stable or not only directly affect the coal’s combustion efficiency but also an important parameter to ensure safety production. In the process of control, it has the characteristics of time-varying, nonlinear and coupling. In order to solve this problem, this thesis introduces Intelligent Track Guide Controller(ITGC) control scheme. ITGC principle is that transform the classic PID’s "objective control" to "process control". The ITGC simulation results were compared with PID, and simulation results show that: ITGC control scheme is better than the classics PID scheme in overshoot and settling time. Under a variety of conditions, the ITGC control scheme have an anti-interference ability. Applying ITGC to steam boiler’s hearth negative pressure control, it is fully capable of such a control system which have a multi-couplings and time variation.

• Periodical: Applied Mechanics and Materials (Volumes 631-632)
• Pages: 747-750
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.631-632.747
• Online since: September 2014
• Authors: Wen Biao Wang, Dong Dong Mu*, Si Yuan Wang, Zhan Yuan Ge
• Keywords: Hearth Negative Pressure, Intelligent Guide Control, Optimization

References

[1] Zhikun Chen, Wentao Sun, Fubin Wang. Full combustion of blast furnace gas boiler furnace pressure Fuzzy Control System [J]. MECHANICAL ENGINEERING &AUTOMATION, 2013 (4): 142-143.

[2] Zhuo Wang, Dongmei Fu, Dejun Liu. The Study on Drum Water Level Control System for Boiler [J]. PROCESS AUTOMATION INSTRUMENTATION, 2006, 55-56.

[3] Yang yang. The Study of Intelligent Track Guiding Control Algorithm [D]. (Master Dissertation). Dalian: Dalian Maritime University, (2008).

[4] Ning Gan, Yongfeng Wang. Inverter in the boiler furnace pressure automatic control [J]. Xinjiang Non-Ferrous Metals, 2011, 34(1): 71-72.

[5] Jianwei Liu. The Study and APPlication on the Parameter Tuning of ITGC Algorithm [D]. (Master Dissertation). Dalian: Dalian Maritime University. (2009).

[6] Cohen G H and Coon G A . Theoretical Consideration of Retarded Control. Trans. ASME, 1953, No. 75: 827-833.

DOI: 10.1115/1.4015452

[7] Miller J.A. et al. A Comparison of Controller Tuning Techniques. Control Engineering, 1967, 12: 72-75.

[8] Yongming Wu. Control Strategy Study and Control System Design of Industries Boiler [D]. Lanzhou: Lanzhou university of technology. (2009).

[9] Shan Zhang. Research of Performance Evaluation System of Heating Boilers [D]. Dalian: Dalian maritime university, (2013).