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中文摘要：
磁控溅射电源是磁控溅射镀膜生产装置中的关键设备之一,溅射过程中的不稳定严重影响镀膜的质量,因此电源控制算法的优化设计对改善溅射过程的稳定性至关重要。本文针对大型真空镀膜设备所用电源,提出变速积分PI控制和重复控制相结合的控制方案,详细介绍了复合控制器的设计过程,MATLAB仿真验证了该方案的合理性。在实验室搭建了样机,测试和运行结果证明了算法的正确性。
英文摘要：
Magnetron sputtering power is the key equipment of sputtering coating production equipment, and the instability of sputtering process would seriously affect the quality of coating. Therefore, the optimization design of control algorithm for the power is very important to improve the stability of sputtering process. In view of the power used in large vacuum film coating equipment, this article put forward the control method which combine gearshift integral PI control with repetitive control, introduced the design process of compound controller in detail, and verified the rationality of this method with MATLAB. A prototype was built in the laboratory, and the tests and operation results proved the correctness of the algorithm.
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