摘要
为了消除风电叶片全尺寸静力试验过程中加载力耦合效应,首先搭建一套多节点静力加载试验系统,通过现场试验得到加载力之间的耦合规律。在此基础上采用动态主令方法确定最慢加载节点,以加载力误差及其变化率作为输入变量,以电机转速作为输出控制变量,设计模糊协调控制算法,最后以aeroblade2.0-48.8风电叶片最小面向(min flapwise)为被控对象进行加载试验。试验结果表明,该协调控制算法能保证4个节点的加载力始终保持均匀变化,整个加载过程的控制误差分别小于±3、±3、±4、±4 kN,且在100%阶段时,加载力均能较好地保持在设定值,可验证该控制算法应用于风电叶片全尺寸静力加载试验的可行性。
In order to eliminate coupling effects of the load in the full-size static test process of all, a multi-node static loading test system was built. The coupling law between loading of wind turbine blades, first forces from test on site was found. Then the dynamic master method was used to confirm the slowest loading node. Taking loading force error and its error rate as input variables and the motor speed as output control variable, a fuzzy coordinated control algorithm was constructed. Finally, min flapwise direction of aeroblade 2.0-48.8 wind turbine blade was tested. The test results show that the coordination control algorithm can guarantee that four node loading forces always maintain uniform change. The loading forces can preferably maintain at a set value, and the control errors of the entire loading process are less than ± 3, ± 3, ± 4, and ± 4 kN, respectively, which can validate the feasibility of the control algorithm being applied to the full- size static loading tests of wind turbine blade.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2015年第6期1418-1422,共5页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51405275
51305243)
山东省自然科学基金(ZR2014EL027)
中国博士后科学基金(2015M571840)
关键词
风电叶片
静力试验
加载力
协调控制算法
wind turbine blade
static test
loading force
coordination control algorithm
