陶瓷磨边超声加工电源的设计与研究  

Research and Design of Ultrasonic Power for Ceramic Grinding

作　　者：张进坤[1] 李优新[1] 张永俊[1] 姚震[1] 陈威[1] 

机构地区：[1]广东工业大学机电工程学院,广东广州510006

出　　处：《电加工与模具》2015年第3期58-61,共4页Electromachining & Mould

基　　金：国家自然科学基金资助项目(51275097);广州市科技计划项目(2009Z2-D611);广东工业大学重大专项培育项目(092009)

摘　　要：针对超声加工系统存在频率漂移的问题,提出了基于STM32的电流扫频和相位检测相结合的复合频率跟踪方法。电流扫频可确保在宽频率范围实现频率跟踪,相位检测保证了频率跟踪的快速性。在此基础上,设计了相应控制算法和硬件电路。通过陶瓷磨边实验表明该系统具有良好的频率跟踪效果。To solve the frequency drift problem during the ultrasonic machining power system operation,a composite frequency tracking method that based on STM32 combines current sweeping and phase detection was proposed. The sweeping ensures the accuracy of frequency tracking in a wide frequency range and the phase detection ensures the rapidity of frequency tracking. On this basis ,the corresponding control algorithm and circuit system were designed. By ceramic grinding experiments ,it shows that the power system has good frequency tracking characters.

关 键 词：STM32 扫频 相位检测 复合频率跟踪 

分 类 号：TG663[金属学及工艺—金属切削加工及机床]