类海蟒式波浪俘能装置半物理实验系统的研究

发布时间：2018-01-02 16:29

  本文关键词：类海蟒式波浪俘能装置半物理实验系统的研究　出处：《哈尔滨工业大学》2016年硕士论文　论文类型：学位论文

  更多相关文章： 类海蟒式波浪俘能装置 AQWA软件 仿真平台 半物理实验系统

【摘要】：海洋是无尽的宝库,其波浪中蕴含着丰富的清洁可再生能源。海洋波浪发电技术就是通过各种各样的俘能装置,将蕴含在波浪中的无法为人类直接利用的能量转化成以电能为主的其他形式的能量。海蟒式波浪俘能装置是其中一种重要的波浪能转换装置。研究设计类海蟒式波浪俘能装置半物理实验系统,对研发该类型的波浪发电装置具有重要意义。本文利用水动力学软件AQWA对浮筒进行了频域和时域的建模,获得了构建俘能装置动力学方程的浮筒水动力学参数。通过AQWA程序进行了俘能系统(PTO)为线性阻尼以及库伦力矩的对比仿真分析,得出有必要在仿真模型中加入真实的液压系统。通过FORTRAN语言将俘能系统模型加入到AQWA仿真模型中,构建了带真实液压系统的俘能装置仿真模型,为后面实验系统的检验提供了依据。并进行了PTO为线性阻尼,库伦力矩以及真实俘能系统的对比仿真,并对其运动特性以及俘能特性进行了分析。针对海莽式波浪俘能装置的运动特点以及工作特点进行了半物理实验系统总体设计。针对不同的浮筒特点确定了缩比尺系数,拓宽了实验系统的适用范围。建立了ISIGHT-AQWA-MATLAB联合仿真优化模型,确定了俘能系统最优设计参数,并进行了俘能液压系统的选型。同时完成了半物理实验系统俘能装置动力学解算部分模型的搭建,并验证了模型的正确性,同时验证了半物理实验系统的可行性。设计了实验台机械结构,并对关键结构进行校核检验。通过大量的俘能装置仿真分析,设计了驱动液压系统。建立了驱动液压系统数学模型,并进行了系统稳定性分析,闭环刚度特性分析以及系统稳态精度分析。针对负载可测的特性设计了前馈-PID复合控制器,其性能指标达到系统要求。并搭建了半物理实验系统仿真模型,与俘能装置仿真模型进行了对比仿真,结果表明所设计的半物理实验系统可以达到模拟俘能装置实际运动特性的效果。最后对半物理实验台进行了性能实验,验证了实验台液压驱动系统对给定信号的跟踪性能,实验表明实验台驱动液压系统满足相应的性能指标。进而通过本半物理实验台进行了10 m浮筒俘能装置的原型实验研究以及20 m浮筒俘能装置模型实验研究。通过和所搭建的仿真模型进行对比分析,证明本实验台具有较好的性能,可以完成俘能装置运动以及俘能的模拟,同时也通过实验验证了所搭建的仿真模型的正确。
[Abstract]:The ocean is the endless treasure, the wave contains rich clean and renewable energy. The ocean wave power device technology is through a variety of prisoners, contained in the waves can not directly use the human energy into electricity to other forms of energy. The sea wave energy collection device is a python type one a wave energy conversion device. Research and design of sea wave energy harvesting Python semi physical experiment system, has important significance to develop the type of wave power device. The water dynamics software of AQWA buoy is modeled in frequency domain and time domain, the construction of water harvesting device dynamics equation of kinetic parameters of buoy the AQWA program was carried out. Through the energy harvesting system (PTO) for the analysis of linear damping and Kulun moment simulation, it is necessary to join the real hydraulic system in the simulation model Through the FORTRAN language harvesting system model into AQWA simulation model, constructed with a real hydraulic system of the piezoelectric device simulation model, providing a basis for testing behind the experiment system. And the PTO linear damping torque and energy harvesting system Kulun real the simulation, and the motion characteristics and the piezoelectric properties were analyzed. According to the motion characteristics and work characteristics of sea wave energy harvesting device. The overall design of semi physical experiment system. According to the different characteristics of the buoy scale shrinkage coefficient, broadens the scope of the experimental system was established. Simulation and optimization model of ISIGHT-AQWA-MATLAB, the energy harvesting system the optimal design parameters, and the selection of hydraulic energy harvesting system. At the same time, semi physical experiment system to build energy harvesting device dynamics calculation model, and validate the model Right, as well as the feasibility of semi physical experiment system. The design of the experimental platform of mechanical structure, and check the inspection on the key structure. Through a large amount of energy harvesting device simulation, design of hydraulic drive system. The establishment of a dynamic mathematical model of the hydraulic system, and analyzes the system stability analysis, stiffness analysis of closed loop and the steady-state accuracy. According to the load characteristics of -PID composite feedforward controller design can be measured, the performance indicators have reached the requirements of the system. And set up the semi physical simulation system simulation model, and the energy harvesting device simulation model for simulation, results show that the semi physical experiment system design can achieve the simulation of energy harvesting device actual movement effect of the characteristics. Finally, the semi physical test bench performance experiments, verify the tracking performance of the system for a given signal experiment of hydraulic drive, the experiment shows. Test drive hydraulic system to meet the performance accordingly. Then through the semi physical test bench experiments were conducted to study the device model prototype experimental study of 10 m buoy harvesting device and 20 m energy harvesting buoys. By contrast with the simulation model, proved that the experimental platform has good performance, can be captured can simulate the movement and energy harvesting device, but also through the experiment to verify the simulation model built by the right.

【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：P743.2
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本文编号：1370056