研究结果表明：供电、供气、控制等系统经过适当改造，电弧加热器可以实现变参数运行。
The results indicate that the arc heater can run with transient parameter when the power supply system, air supply system and control system were reformed appropriately.
仿真结果表明鲁棒控制器能满足变负荷运行要求，而变参数控制器明显地改善了系统的性能。
The simulation results show that the robust controller can fulfill all the operational requirements and that the parameter-varying controller improves the system performance remarkably.
该方案对参数未知且时变系统，能确保系统始终处在滑模运动可达且存在的条件下稳定运行，具有更强的鲁棒性。
Theoretical analysis and simulation results have shown that the scheme enables the system to be always in the conditions of sliding mode existence and has a good stability and strong robustness.
并且给出了优化设计的实例；计算了变工况下的结构参数及运行性能变化，列出了型式试验计算机模拟结果。
It gives a example of optimum design, calculates variation of structure parameters and operating performance under changing operation conditions and shows the calculating results about model tests.
并且给出了优化设计的实例；计算了变工况下的结构参数及运行性能变化，列出了型式试验计算机模拟结果。
It gives a example of optimum design, calculates variation of structure parameters and operating performance under changing operation conditions and shows the calculating results about model tests.
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