建立了压电泵的数学模型并提出了一种新的压电泵驱动电源结构,在此基础上研发了一种新的驱动电源并对压电泵的工作特性进行了实验研究.该电源采用Boost变换器升压和Full-Bridge变换器逆变,能给压电泵提供±150 V方波电压,并使压电泵工作在较宽的频率范围(10～100 Hz),具有频率可调、体积小、质量轻、功耗低、输出精度高、响应速度较快、驱动能力强的特点.仿真及实验结果表明,压电泵的输出流量随驱动电源的输入电压和输入频率成规律性变化.%The mathematical modeling of piezoelectric motors was established and a new structure of the driving power for piezoelectric motors was presented. A new driving power was developed and the working performance of piezoelectric motors was studied with simulation and experiment. The driving power boosted voltage with Boost converter and was inverted with Full-Bridge converter,thus applying square wave voltage( ±150 V peak to peak) to piezoelectric motors. It is characterized by making the piezoelectric motor work at a wide operational frequency of 10 ~ 100 Hz and has the characteristics of adjustable frequency, small volume, light weight, low power consumption, high precision, quick response and strongly driving capability and so on. The results of simulation and experiment indicate that the laws of the volume of flow are varying with the driving power voltage and frequency.
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