摘要
针对现有的风力机风洞试验操作要求高且安全性难以保证的特点,设计开发一套微型风力机功率测量装置。该装置由联轴器、动态扭矩仪、微型直流电动机、直流负载及可控直流电压源组成。同时为解决机电转换效率较低,不能准确获得微型风力机实际功率输出的问题,实验时先测试微型风力机的轴功率输出效率,拟定函数关系式;再依据公式推导出微型风力机实时轴功率。该装置安全可靠,可用于新能源专业的实验课程教学,提升学生对风力机空气动力学的认知,使学生掌握风力机整机气动特性的风洞测试方法,培养学生独立实践的能力,具有良好的推广价值。
Due to the characteristics of high technical requirements and difficulty guaranteeing the safety of the current wind tunnel test of wind turbines,a set of micro power measuring devices has been designed.The apparatus comprises a coupling,a dynamic torque meter,a miniature direct current(DC)motor,a DC load,and a controllable DC voltage source.At the same time,to solve the issue of low electromechanical conversion efficiency and the inability to accurately obtain the actual power output of the micro wind turbine,the experiment first tests the shaft power output efficiency of the micro wind turbine and establishes the function relation.Then,the real-time shaft power of the micro wind turbine could be deduced according to the formula.The device is safe,reliable,and can be used for experimental courses teaching new energy majors.As a result,it can improve students'cognition of wind turbine aerodynamics,enable students to master the wind tunnel test method of wind turbine aerodynamic characteristics and cultivate students'ability to practice independently.In summary,it has good values of popularization.
作者
杨俊伟
王相军
杨华
黄小茜
YANG Junwei;WANG Xiangjun;YANG Hua;HUANG Xiaoxi(Guangling College,Yangzhou University,Yangzhou 225000,China;College of Electrical,Energy and Power Engineering,Yangzhou University,Yangzhou 225147,China)
出处
《中国测试》
CAS
北大核心
2024年第11期129-134,共6页
China Measurement & Test
基金
扬州市自然科学基金项目(YZ2023169)
江苏高校‘青蓝工程’资助课题(苏教师函[2024]14号)
江苏高校哲学社会科学研究一般项目(2023SJYB2085)
扬州大学2023年教学改革研究课题(YZUJX2023-C7)。
关键词
风洞试验
功率测量
微型风力机
风力机空气动力学
wind tunnel test
power measurement
micro wind turbine
wind turbine aerodynamics
