Solar Driven Wind Speed Monitoring System Using Wireless or Wired Sensors
Solar Driven Wind Speed Monitoring System Using Wireless or Wired Sensors作者机构：Department of Irrigation Universidad Autonoma Chapingo Texcoco México
出 版 物：《Energy and Power Engineering》 (能源与动力工程（英文）)
年 卷 期：2014年第6卷第9期
页 面：213-221页
学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学]
主 题：Wind Tower Wireless Anemometers Battery Regulator
摘 要：Instrumented towers are being constructed to characterize vertical wind profiles in order to improve the understanding and characterization of a desired environment up to 100 m. The site being measured is at a height of 2500 m over sea level, in one side of Sierra Madre Oriental, which crosses Mexico from North to South. As the site has no energy, it was powered by a photovoltaic system. Power consumption of two sets of sensors fixed at the tower was evaluated. The first sensor set consisted of a pulsed anemometer and a RH sensor having a 0 - 10 V output;these sensors used cables for transmitting the output signals. Three cup anemometers fixed at 25, 35 and 45 m high measured wind speed. Wireless sensors in the second set, requires of a power consumption and battery life study. Solar cells energized the sensors, becoming the installation and operation easier. The datalogger that acquired the RH and T measurements encountered an 11% voltage loss throughout the cable;cup anemometer measurements did not show variations due to its pulsed signals. Wireless sensors drew less energy from the PV system, resulting in battery overcharge. A dump regulator turned-on a 200 W lamp during the night when the battery voltage reached 14 V;the lamp was turned-off when the battery voltage felt beneath 11.5 V. Considering the high wind available, wireless sensors batteries were charged by small wind turbines combined with 5 W solar panels.
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