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首页> 外文会议>Instrumentation and Measurement Technology Conference (I2MTC), 2012 IEEE International >A wind energy harvester for low power wireless sensor networks
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A wind energy harvester for low power wireless sensor networks

机译：用于低功率无线传感器网络的风能采集器

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摘要

At present a lot of research is being done to find alternative methods of powering up wireless sensor networks (WSN) in order to increase the lifespan of these networks. Due to large efforts the power consumptions of these sensors are continuously being improved to operate in the milliwatt and microwatt range, therefore making renewable energy suitable for this application. In this paper a wind energy harvester (WEH) was designed, built, and tested to determine if wind energy is viable for supplying power to WSN's. The WEH consisted of a wind generator and a power management unit to store and condition the generated energy. The wind generator designed utilizes aero - elastic flutter to convert wind energy into electrical energy, and is similar to the Windbelt that was developed by humdinger wind energy [2]. The wind generator consisted of a frame to hold components of the generator together, a membrane to convert wind energy in to mechanical energy, and an electromagnetic transducer to convert the mechanical energy in to electrical energy. The results show that the wind generator is operational at wind speeds of 2–9m/s, and is capable of supplying 70mW of power, and thereby making it extremely possible to increase the lifespan of a WSN. The power management unit consisted of the conventional diode bridge rectifier without maximum power point tracking (MPPT) resulting in poor efficiencies of the WEH.
机译：当前，正在进行大量研究以找到为无线传感器网络（WSN）供电的替代方法，以延长这些网络的使用寿命。由于付出了巨大的努力，这些传感器的功耗一直在不断提高，以在毫瓦和微瓦范围内运行，因此使可再生能源适用于此应用。在本文中，设计，建造和测试了一个风能采集器（WEH），以确定风能是否可以为WSN供电。 WEH由风力发电机和功率管理单元组成，用于存储和调节所产生的能量。设计的风力发电机利用气动弹性颤振将风能转换为电能，类似于由亨丁格风能开发的风带[2]。风力发电机包括将发电机部件固定在一起的框架，将风能转换成机械能的薄膜以及将机械能转换成电能的电磁换能器。结果表明，该风力发电机可在2–9m / s的风速下运行，并且能够提供70mW的功率，从而极有可能延长WSN的使用寿命。功率管理单元由传统的二极管桥式整流器组成，没有最大功率点跟踪（MPPT），导致WEH效率低下。

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