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多泵蓄能式液压传动风力发电系统设计及仿真
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Design and Simulation of Multi-pump Energy-Storage Hydraulic Transmission Wind Power Generation System
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    摘要:

    针对传统单泵式液压传动风力发电系统在复杂工况时常处于欠功率运行的状态,从而使整个机组工作效率较低的现象,提出一种基于风速-压力反馈的数字式多泵液压传动系统。根据不同风速状态得到相应管路压力,并根据压力状态控制液压泵的切入个数,从而使多泵系统可以快速响应系统状态变化,最大化地将风能转化为电能,以提高系统效率。通过在多泵系统与液压马达之间接入由电磁开关阀控制的蓄能系统,辅助多泵系统工作,提供瞬态的蓄能供能作用,以短时间内抑制液压管路能量波动,提高系统运行的安全性和稳定性;通过AMESim/Simulink进行仿真。结果表明:所设计的多泵蓄能系统可以适应复杂风速工况运行,工作效率比传统单泵系统更高且更稳定。

    Abstract:

    In view of the traditional single-pump hydraulic transmission wind power generation system in complex operating conditions is often in the state of underpower operation, so that the whole unit work efficiency is low, a digital multi-pump hydraulic transmission system based on wind speed-pressure feedback was proposed. The corresponding pipeline pressures were obtained according to the different wind speed states, the cut-in number of hydraulic pump was controlled according to the pressure state, so that the multi-pump system could quickly respond to the system state changes, so the system status change could be quickly responded and the wind energy could be maximize converted into electric energy to improve the system efficiency. By connecting the energy storage system controlled by the solenoid switch valve between the multi-pump system and the hydraulic motor, assisting the multi-pump system to work, the transient energy storage function was provided to suppress the energy fluctuation of the hydraulic pipeline in a short period of time to improve the safety and stability of the system operation; the simulations were carried out through AMESim/Simulink. The results show that the designed multi-pump energy storage system can adapt the complex wind speed conditions, and the working efficiency and working stabitily are better than the traditional single-pump system.

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高波,侯昊.多泵蓄能式液压传动风力发电系统设计及仿真[J].机床与液压,2022,50(10):154-159.
GAO Bo, HOU Hao. Design and Simulation of Multi-pump Energy-Storage Hydraulic Transmission Wind Power Generation System[J]. Machine Tool & Hydraulics,2022,50(10):154-159

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  • 在线发布日期: 2022-06-30
  • 出版日期: 2022-05-28