Experiment With Pulse Detonation Engine Control System Design

In this dissertation, the working process of control system for pulse detonation engine was analyzed, PDE control model was established, PDE control system was designed, The main work reads as follows:1. Through established single-cycle PDE performance model, the PDE thrust model was analyzed and deduced. The PDE thrust strategy was obtained. First, through adjust the flow of fuel and oxidant, the engine worked near the chemical equivalent. Then, through adjust the detonation frequency; the thrust of PDE could be satisfied. The PDE mathematics model of input and output was build, the control object and details was explicated of PDE.2. The PDE experiment control system was designed. Through the test of control system, the PDE could detonation and worked steady. The theory of PDE thrust control system was studied. It included thrust control method and closed loop control structure. Then, based on PID arithmetic, the closed loop control program for thrust control system was designed. The PDE closed loop control was realized.3. The error of pulse output at different moment for control system was analysis. The error was control within1%, so the designed system could meet require of experiment. Then, through the thrust wall pressure curve, detonation chamber pressure curve and detonation exit flame picture data collected in the PDE work process, the control system could meet require of PDE system. The control system could let the PDE detonation, formed detonation wave on the detonation chamber, and the PDE could work steady.