| 摘要:针对自主研制的船用低速机燃油喷射电液控制压电阀，利用MATLAB/Simulink软件对其驱动电路的限流电感进行仿真与优化，研制基于电流控制的开关式驱动控制电路，并进行压电执行器和压电阀驱动试验。试验结果表明：当驱动电压为160 Ｖ、控制电流为5.2 Ａ时，压电执行器和压电阀的响应时间分别为210 μs和800 μs，满足柴油机燃油喷射电液控制阀的快速响应要求。 |
| 关键词: 船用低速机 压电阀 驱动电路 |
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| Drive Circuit of Electro-Hydraulic Control Piezoelectric Valve in Marine Low Speed Engine Fuel Injection System |
| HE Yuhai,WANG Songbo,ZHANG Bolun |
| School of Energy and Power Engineering， Wuhan University of Technology， Wuhan 430063， China;Key Laboratory of Marine Power Engineering and Technology Granted by MOT， Wuhan 430063， China;National Engineering Research Center of Special Equipment and Power System for Ship and Marine Engineering， Wuhan 430063， China |
| Abstract:For the self-developed fuel injection electro-hydraulic control piezoelectric valve of marine low speed engine，MATLAB/Simulink software was used to optimize the current limiting inductance of the drive circuit，and a switch type drive control circuit based on current control was designed.The test of the piezoelectric actuator and piezoelectric valve were carried out on the drive circuit.The test results show that the response time of the piezoelectric actuator and the piezoelectric valve is 210 μs and 600 μs respectively when the driving voltage is 160 V and the control current is 5.2 A，which meets the rapid response requirement of diesel engine''s electro-hydraulic control valves. |
| Key words: marine low speed engine piezoelectric valve drive circuit |
