CFBB Bed Temperature Control Strategy Based on Improved DMC

Abstract:

Whether the bed temperature of circulating fluidized bed boiler (CFBB) is stable or not affects the efficiency of the entire unit. According to the characteristics of an uncertain system with large delay, large inertia and time-varying of the bed temperature system, this paper proposed an adaptive dynamic matrix control (DMC) algorithm based on the real-time error correction. The algorithm can make the dynamic matrix controller more accurately, more flexibly and more applicably on reflecting system changes by revising the errors during the feedback regulating. The simulation results show that the control algorithm is of good adaptability and robustness and satisfactory control effect in the bed temperature system can be achieved.

• Periodical: Advanced Materials Research (Volumes 732-733)
• Pages: 817-822
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.732-733.817
• Online since: August 2013
• Authors: Chang Liang Liu*, Fei Fei Li
• Keywords: Bed Temperature, DMC, Error Correction, Least Squares Algorithm

References

[1] Haiyun Qu.Master Thesis. Baoding: North China Electric Power University,2004. (in Chinese)

[2] Xining Yu,Hui Wang,Dongfeng Wang,Tiansheng Ji.Journal of North China Electric Power University, 2005, 32(3),43-46.(in Chinese)

[3] Xiaoyong Ma,Hongyan Wu. Journal of North China Electric Power University, 2011,38(5),81-83. (in Chinese)

[4] KESSON B M,TO IVONEN H T. Journal of Process Control,2006,16(9),937-946.

[5] LU CH,TSA IC C. Journal of Process Control,2007,17(1),83-92.

[6] Gang Ju,Hongqi Wei,Shaobing Chen,Zhigao Xu. Proceedings of the CSEE,2002,22(4),144-148. (in Chinese)

[7] Liu X J,Chan C W. IEEE Trans. Energy Conversion,2006,21(4),900-908.

[8] Hongjun Liu,Pu Han,Dongfeng Wang.Journal of System Simulation,2004,16(3),450-453. (in Chinese)

[9] Haijun Zhang,Heng Yue,Chun Li,Tianyou Chai. Journal of System Simulation, 2007, 19(15), 3506-3509. (in Chinese)

[10] Wei Guo,Shaojie Yao. Proceedings of the 7th World Congress on Intelligent Control and Automation.Chongqing,2008,1512-1515.

DOI: 10.1109/wcica.2008.4593143

[11] Yong Wang, Jizhen Liu,Xiangjie Liu,Wen Tan. Proceedings of the CSEE,2007,27(8),70-75. (in Chinese)

[12] Weigui Qi,Xueli Zhu. Journal of System Simulation,2003,15(1),96-103. (in Chinese)

[13] Ping Fu,Lixin Yao,Xiaoke Li,Ze Dong. Journal of North China Electric Power University, 2005, 32(5), 89-91. (in Chinese)

[14] Weijie Zhao,Wenzhen Zhang,Xiaolu Feng.Journal of Power Engineering,2007,27(4),545-550. (in Chinese)