基于双多流管模型的同步变桨垂直轴风力机特性分析  

Characteristic analysis of a synchronous variable-pitch vertical axis wind turbine based on a double-multiple streamtube model

作　　者：张松[1] 刘秉昊 张立勋[1] 杨勇[1] 

机构地区：[1]哈尔滨工程大学机电工程学院,黑龙江哈尔滨150001 [2]哈尔滨工程大学自动化学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工程大学学报》2011年第8期1040-1044,共5页Journal of Harbin Engineering University

基　　金：黑龙江省科技计划资助项目(TA09Q801)

摘　　要：针对基于叶素理论对同步变桨垂直轴风力机进行性能分析的问题,研究了叶素理论和双盘面多流管模型,阐述了这些模型所做的假设和所适用的领域.分析了双盘面多流管模型的流管宽度特征,指出了该特征即为其在运算中出现不收敛现象的原因,针对该特征进行了改进后,可以明显改善运算不收敛现象并且提高计算速度.对同步变桨垂直轴风力机进行了理论分析,验证了其近似最优特性,得出了其性能在尖速比0.6附近最优的结论.进行了风力发电实验,理论结果与实验数据的对比验证了改进方法的可行性.This paper aims at validating the formerly used performance analysis of a synchronous variable-pitch vertical axis wind turbine based on the blade element theory.The hypotheses and domain of the blade element theory and double-multiple streamtube model were expatiated after studying these theories.The width characteristics of streamtubes in a double-multiple streamtube model were analyzed and proven to be the reason of divergent phenomena in the calculations.An improvement of these width characteristics was made;afterwards,the divergent phenomena decreased distinctly and the computing speed became faster.Based on the improved model,a synchronous variable-pitch wind turbine was analyzed and proven to be nearly optimal with maximum performance at a tip speed ratio of 0.6,a wind-driven power-generation test was done,by the comparison between the theoretical results and the test data,the feasibility of improvement method was verified.

关 键 词：垂直轴风力机 双盘面多流管模型 同步变桨规律 最优变桨规律 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]