Torsional vibration active control of hybrid construction machinery complex shafting
Torsional vibration active control of hybrid construction machinery complex shafting
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DOI：
10.1007/s11771-014-2328-2
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发表时间：
2014-09
影响因子：
4.4
通讯作者：
Qiongyin Hu;Chunhua Yang;Shaojun Liu;Hao Zheng
中科院分区：
文献类型：
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作者：
Qiongyin Hu;Chunhua Yang;Shaojun Liu;Hao Zheng
由于发动机、电机和泵的同轴连接，改变了混合动力工程机械的动态特性，产生了新的多动力源扭振问题。为了降低混合动力工程机械复杂轴系的扭振，提出扭振主动控制。建立了混合动力工程机械同轴轴系三质量模型。选择PID控制和模糊滑模控制，通过控制电机转速和扭矩来减弱扭振。仿真结果表明，当发动机扭矩变化时，模糊滑模控制比PID控制有12%的超调。主动控制有效，可实现平滑功率切换。
Due to the coaxial connection of engine, motor and pump, the dynamic characteristics of hybrid construction machinery are changed, which generates a new torsional vibration problem of multi-power sources. To reduce the torsional vibration of the hybrid construction machinery complex shafting, torsional vibration active control was proposed. The three-mass model of coaxial shafting of hybrid construction machinery was established. The PID control and the fuzzy sliding mode control were chosen to weaken torsional vibration by controlling the motor speed and torque. The simulation results show that the fuzzy sliding mode control has 12% overshoot of the PID control when the engine torque changes. The active control is effective and can realize smooth power switch.