Undisturbed switching control of fuel flow-rate for a high-speed heat-airflow wind tunnel

Abstract

According to the requirements of a high-speed heat-airflow wind tunnel experimental system, a fuel supply system based on variable frequency control technology and proportional throttle valve is designed. The mathematical model of the fuel supply system under the mode of the proportional throttle valve control and the variable frequency pump control is established. Because the fuel supply system has a pure time delay and the change of working conditions can cause the problem of time-variant parameters, a fuzzy proportion integration differentiation control strategy with Smith predictor is proposed. In addition, switching between the pump control mode and the valve control mode will bring disturbances, so two undisturbed switching methods are designed. The simulation and experimental results show that the proposed control strategy can overcome effects of the pure time delay and obtain a satisfactory control performance. The two undisturbed switching control methods designed in this paper can achieve the undisturbed switching of the fuel flow-rate control.

Keywords

Heat-airflow wind tunnel flow-rate control fuzzy PID undisturbed switching Smith predictor

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References

Zhao

Liao

Chen

. 1700℃ hot wind tunnel for thermal calibration. Aviation Measuring Test Technol 2000; 20: 3–6.

Peng

Yang

. Variable frequency hydraulic technology development and Research. J Zhejiang Univ 2004; 38: 215–221.

Nakano

Tanaka

. Energy saving type electro-hydraulic servo system. J Fluid Control 1988; 18: 35–51.

Tanaka Y, Nakano K and Yamamoto N. Energy saving hydraulic power source using inverter-motor drive. In: Proceedings of the first JHPS international symposium on fluid power, Tokyo, Japan, 1989, pp.83–90. Tokyo: Mita Press.

Tanaka Y and Nakano K. Variable speed control of hydraulic pump for energy savings. In: Proceedings of the1st international symposium on fluid power transmission and control, Beijing, China, 1991, pp.124–128. Beijing: Beijing Institute of Technology Press.

Lee

. Self-tuning adaptive speed control of a pump/inverter-controlled hydraulic motor system. J Syst Control Eng 1995; 209: 101–114.

Manasek R. Simulation of an electro-hydraulic load-sensing system with AC motor and frequency changer. In: Proceedings of the 1st FPNI-PhD symposium, Slovak University of Technology, Slovakia, 2000, pp.311–324. Hamburg: Technical University of Hamburg-Harburg.

Peng T. Research on variable frequency pump control motor speed governing and compensation characteristics. PhD Thesis, Zhejiang University, China, 2003.

Peng

. Minimum fuel control strategy in automated car-following scenarios. IEEE Trans Vehicular Technol 2012; 61: 998–1008.

10.

Xu S, Zhou M and Dong H. High temperature hydraulic pump and flow control based on frequency conversion technology. In: Proceedings of the 2010 IEEE international conference on mechatronics and automation, 2010, pp.1203–1208. Piscataway, NJ: IEEE.

11.

Zhang

. Design and implementation of fuel supply system based on variable frequency speed-regulating technology. Hydraul Pneumat Seal 2010; 30: 10–12.

12.

Li Y, Cai C, Liu T, et al. Study on control strategies for oil-fuel supply system used in supersonic combustion wind tunnel. In: Proceedings of the 2011 fluid power and mechatronics, Beijing, China, 2011, pp.732–737. Piscataway, NJ: IEEE.

13.

Liu

Zhang

. Flow rate predictive control for volumetric type of fuel oil supplying system driven by variable frequency induction motor. Hydraul Pneumat Seal 2011; 31: 52–56.

14.

Cai

Teng

. A novel cascade temperature control system for a high-speed heat-airflow wind tunnel. IEEE/ASME Trans Mechatron 2013; 18: 1310–1319.