Design and construction of a simple blade pitch measurement system for small wind turbines

被引:11
|
作者
Whale, Jonathan [1 ]
机构
[1] Murdoch Univ, Res Inst Sustainable Energy, Perth, WA 6150, Australia
关键词
Small wind turbines; Over-speeding; Blade feathering mechanisms; Blade pitch measurement; Absolute contacting position encoder; Wireless RF modules;
D O I
10.1016/j.renene.2008.05.007
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
For small wind turbines to be reliable they must have in place good mechanisms to protect themselves against very high winds or sudden removal of load. One common protection method in small wind turbines is that of blade feathering. It is important that the blade feathering mechanism of a small wind turbine is tested before the turbine is installed in the field. This paper presents a simple system for monitoring the blade feathering of a turbine with an overall component cost that small wind turbine manufacturers can afford. The Blade Pitch Measurement System (BPMS) has been designed and constructed by the Research Institute of Sustainable Energy (RISE) and aids small wind turbine manufacturers in testing and optimising the settings of the blade feathering mechanisms on their machines. The results show that the BPMS was successful in recording the behaviour of the blade feathering mechanism in field trials with a 20 kW and a 30 kW wind turbine. The BPMS displays significant potential as an effective, inexpensive system for small wind turbine manufacturers to ensure the reliability of their pitch regulating over-speed protection mechanisms. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:425 / 429
页数:5
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