Abstract
Variable cycle engine has many controllable variables and complex characteristics, and is a complex nonlinear system with strong coupling. Aiming at the three-input three-output variable cycle engine model, the relative gain array is used to analyze the internal coupling of the engine, and the conclusion shows that the variable cycle engine is a strongly coupled system. Therefore, an augmented linear quadratic Gaussian loop transfer recovery multivariable controller is designed. The simulation results indicate that the multi-variable control system has excellent disturbance suppression capability. In the command tracking capability simulation, the adjustment time is less than 0.5 s and the overshoot is less than 1%, indicating that the multi-variable method can effectively control the variable cycle engine, so that the significantly improves the performance of variable cycle engines. Finally, the hardware in loop simulation of the multivariable controller is implemented. The simulation consequences are basically no difference with the software environment. The running time in one cycle is 3.56 ms, which verifies the effectiveness and real-time performance of the multivariable control.
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Acknowledgment
This work is funded by the National Science and Technology Major Project of China (No. J2019-V-0003-0094).
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He, Jl., Guo, Yq., Liu, Ly., Zhao, Wl., Dong, Yh. (2023). Design of Multivariable Control System for Variable Cycle Engine and Hardware-in-the-Loop Simulation. In: Yan, L., Duan, H., Deng, Y. (eds) Advances in Guidance, Navigation and Control. ICGNC 2022. Lecture Notes in Electrical Engineering, vol 845. Springer, Singapore. https://doi.org/10.1007/978-981-19-6613-2_422
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DOI: https://doi.org/10.1007/978-981-19-6613-2_422
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