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首页> 外文学位 >Conception et comparaison des performances de strategies de commande PI et DAC appliquees au calage variable d'une eolienne de 10kw.
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Conception et comparaison des performances de strategies de commande PI et DAC appliquees au calage variable d'une eolienne de 10kw.

机译：PI和DAC控制策略的设计和性能比较，应用于10kw风力发电机组的可变正时。

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摘要

One of the goals of the Wind Energy Strategic Network (WESNet) is to optimize wind turbine technologies for the Canadian climate. The 10kW wind turbine was developed at the New-Brunswick University and the Ecole de techonologie superieure to fulfill this mandate. It is equipped with an electromechanical variable pitch system and a generation system using torque control to maximize its power output. Unlike what's usually seen in the industry, this last control method remains active for wind speeds above the nominal value.;This project aims to design two control strategies for the variable pitch system of the WESNet wind turbine and to compare their performances under operating conditions in order to identify the one that yields the higher power output. They are compared through the means of their power curve, their availabilities and their realistic extrapolated annual energy production. This last indicator is obtained by multipling one strategy's extrapolated annual energy production by its availability. It gives an overview of a strategy's potential production.;The control strategies are developed with a linear and a nonlinear model of the wind turbine built with SIMULINK and the FAST wind turbine design code. They are then implemented in the variable pitch drive and data of their operation is recorded during field test lasting for approximately a month in each case.;The first strategy developed is proportional-integral (PI). It is chosen because of its simplicity of design and application, the amount of available literature and of its proven performances. Field tests as shown that a gain scheduling technique was required in order to obtain good power regulation. The data recorded was used to validate the nonlinear model behavior.;The second strategy is disturbance accommodating control (DAC). It is chosen because of its flexibility, of its relative simplicity for a modern control strategy and of the promising experimental results found in the literature.;The wind turbine produces more when equipped with the DAC strategy then the PI strategy. The DAC power curve for winds above the nominal speed is higher and more constant : the 10kW production was only reached with the DAC. Furthermore, despite a lower availability, it exhibits a higher realistic extrapolated annual energy production than the PI. This improved production is caused by an increased pitch activity. The DAC strategy exhibits a better regulation for the majority of wind conditions, while PI is better when winds are turbulent (above 18% IT). However, the PI fails to produce more than the DAC for all wind conditions.
机译：风能战略网络（WESNet）的目标之一是针对加拿大气候优化风轮机技术。 10千瓦风力涡轮机是由新不伦瑞克大学和高等技术学校开发的，可以满足这一要求。它配备有机电可变螺距系统和使用扭矩控制的发电系统，以最大化其功率输出。与行业中通常看到的情况不同，后一种控制方法在高于标称值的风速下仍然有效。该项目旨在为WESNet风力发电机的变桨系统设计两种控制策略，并比较它们在运行条件下的性能。以便确定产生更高功率输出的那个。通过功率曲线，可用性和实际推断的年度能源产量来比较它们。通过将一种策略的推断年度能源产量乘以其可获得性来获得最后一个指标。概述了该策略的潜在生产。该控制策略是使用线性和非线性风力涡轮机模型开发的，该模型使用SIMULINK和FAST风力涡轮机设计代码构建。然后将它们安装在变桨驱动器中，并在每种情况下持续大约一个月的现场测试期间记录其运行数据。;第一个开发的策略是比例积分（PI）。选择它的原因是其设计和应用的简便性，可用文献的数量及其经过验证的性能。现场测试表明，需要增益调度技术才能获得良好的功率调节。记录的数据用于验证非线性模型的行为。第二种策略是干扰适应控制（DAC）。选择它的原因是它的灵活性，用于现代控制策略的相对简单性以及在文献中发现的有希望的实验结果。配备DAC策略的风力发电机比PI策略的风力发电机产量更高。风力超过额定速度时的DAC功率曲线更高且更恒定：只有DAC才能达到10kW的产量。此外，尽管可用性较低，但与PI相比，其实际推算的年度能源产量更高。产量提高是由于沥青活动增加。 DAC策略对大多数风况都表现出更好的调节效果，而PI则在风湍急时表现更好（IT高于18％）。但是，在所有风况下，PI都无法产生比DAC更高的产量。

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  • 作者

    Dube, Francois.;

  • 作者单位

    Ecole de Technologie Superieure (Canada).;

  • 授予单位 Ecole de Technologie Superieure (Canada).;
  • 学科 Mechanical engineering.;Electrical engineering.
  • 学位 M.Eng.
  • 年度 2014
  • 页码 281 p.
  • 总页数 281
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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