| 基于电流控制的压电陶瓷驱动电源及其试验研究 |
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| 引用本文： | 陈立国,荣伟彬,汝长海,张国平,孙立宁.基于电流控制的压电陶瓷驱动电源及其试验研究[J].机械工程学报,2006,42(3):179-183. |
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| 作者姓名： | 陈立国 荣伟彬 汝长海 张国平 孙立宁 |
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| 作者单位： | 哈尔滨工业大学机器人研究所,哈尔滨,150001;哈尔滨工业大学机器人研究所,哈尔滨,150001;哈尔滨工业大学机器人研究所,哈尔滨,150001;哈尔滨工业大学机器人研究所,哈尔滨,150001;哈尔滨工业大学机器人研究所,哈尔滨,150001 |
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| 摘 要： | 压电陶瓷致动器在电场驱动下会产生迟滞和蠕变现象,降低了定位精度。根据压电陶瓷致动器的位移与电荷量之间具有线性关系,研制了基于电流控制的压电陶瓷驱动电源。通过控制压电陶瓷的充电电流来控制其运动速度,从而控制其位移量。设计特殊电路和有针对性的控制算法,实现对压电陶瓷的快速驱动与高精度定位的结合。试验结果表明,利用该电源可实现对压电陶瓷的线性驱动和快速精密定位。
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| 关 键 词： | 压电陶瓷致动器 驱动电源 电流控制 迟滞 蠕变 |
| 修稿时间： | 2005年1月29日 |
CURRENT CONTROLLED AMPLIFIER FOR PIEZO ACTUATOR AND ITS EXPERIMENTAL RESEARCH |
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| CHEN Liguo,RONG Weibin,RU Changhai,ZHANG Guoping,SUN Lining.CURRENT CONTROLLED AMPLIFIER FOR PIEZO ACTUATOR AND ITS EXPERIMENTAL RESEARCH[J].Chinese Journal of Mechanical Engineering,2006,42(3):179-183. |
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| Authors: | CHEN Liguo RONG Weibin RU Changhai ZHANG Guoping SUN Lining |
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| Abstract: | Piezoelectric actuator controlled by electric field shows serious hysteresis and creep phenomena, which severely degrades the positioning accuracy. A piezoelectric ceramic driver based on current control is designed using the linear relationship between the displacement of the piezo actuator and the free charge on it. The displacement of the piezo actuator is controlled by controlling its velocity through controlling the current of the piezo actuator. Special circuits and pertinent control algorithm realize the combination of quickly driving and precising positioning. The experimental data show that piezo driver can perform linearly driving and quickly precising positioning of piezo actuator. |
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| Keywords: | Piezo actuator Piezo driver Current control Hysteresis Creep |
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