The Applied Research of Decoupling Control Algorithm in Gas Mixing Process

Abstract:

It is difficult to get satisfied effects using conventional instruments to control the caloric value of the mixed-gas. A hybrid intelligent control strategy is presented in this paper in order to solve the coupling problem that exists between the calorific value control and pressure control. This strategy partitions the whole control system into gas–pressurized machine’s post pressure control loop and control loop of pressure decoupling .In the former decoupling control loop, in order to realize the stability of the calorific value and restrain the fluctuation of the mixing pressure, a decoupling controller is designed by combining the fuzzy control and the expert control. The result of real-time control showed the method obviously enhanced the control accuracy and reduced the undulation of pressure and calorific value and fulfilled the request of customer.

• Periodical: Advanced Materials Research (Volumes 634-638)
• Pages: 3994-3997
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.634-638.3994
• Online since: January 2013
• Authors: Zhong Liang Shao
• Keywords: Decoupling Control, Fuzzy Control, Gas Mixing Process

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