| 减小风机偏航刹车液压系统液压冲击方法研究 |
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| 引用本文： | 万保中,张强,苏永清. 减小风机偏航刹车液压系统液压冲击方法研究[J]. 系统仿真技术, 2014, 0(1): 22-26 |
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| 作者姓名： | 万保中 张强 苏永清 |
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| 作者单位： | [1]上海汇益控制系统股份有限公司,上海201100 [2]同济大学电信学院,上海201804 |
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| 基金项目： | 上海市科研计划资助项目（11JC1413000）;青浦区—同济大学科技合作资助项目（20130107） |
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| 摘 要： | 针对风力发电机偏航液压系统刹车泄压时设备易受管道压力突变而产生故障的问题,分析和研究了产生液压冲击的根本原因,从理论上给出几种减小压力突变的方案.通过对泄荷压力变化曲线,对换向阀口的开度,PWM控制阀调节特性,换向阀并联等方案进行理论和仿真分析.仿真结果证明,三种方法对偏航刹车液压系统的液压泄压压力曲线有明显的改变,在一定程度上可以减小压力冲击对设备的损害,可为工程实际应用提供技术参考.
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| 关 键 词： | 液压冲击 风机偏航刹车系统 高速开关阀 |
Research on the Approach to Reducing the Hydraulic Impact of the Wind Turbine Yaw Brake Hydraulic System |
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| WAN Baozhong,ZHANG Qiang,SU Yongqing. Research on the Approach to Reducing the Hydraulic Impact of the Wind Turbine Yaw Brake Hydraulic System[J]. System Simulation Technology, 2014, 0(1): 22-26 |
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| Authors: | WAN Baozhong ZHANG Qiang SU Yongqing |
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| Affiliation: | 1. Shanghai Huiyi Control System Co. , Ltd. ,Shanghai 201100, China 2. School of Electronic and Information Engineering, Tongji University, Shanghai 201804, China) |
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| Abstract: | In order to solve the problem about equipment failure caused by mutations in pipeline pressure when the wind turbine yaw hydraulic system＇s brake is relief, the paper analyze and study the main reason of hydraulic impact, and gives several solutions to reduce the pressure of mutation in the theory The paper using unloading pressure curves to analyze the programs such as changing valve aperture, combination valve and the switching valve controlled by PWM signal. The simulation results show that the three methods have produced significant changes to the pressure relief curve of the yaw brake hydraulic system so that them can reduce the damage to the devices caused by hydraulic impact. |
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| Keywords: | hydraulic impact wind turbine yaw brake system high-speed switching valve |
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