摘要
以QFSN-600-2YHG汽轮发电机为研究对象,分析了转子励磁绕组在气隙静态偏心下的变形、应力及应变响应。首先对转子绕组结构及其受载情况进行了分析;然后在Solid Works中建立了绕组的三维模型,并将其导入至Ansys中,通过加载偏心后的电磁力载荷计算得到了绕组的力学响应数据。结果表明转子绕组的变形、应变和应力具有空间对称性,转子绕组变形量从靠近大齿的绕组向远离大齿的绕组逐渐减小且存在轴向滑移;转角部分应力和应变最大,直线部分的应变和应力最小;1、16、2、15、8号绕组的转角和圆弧部分较为危险。这些结论对转子结构优化及绕组固定设计具有参考价值。
The acting load and the mechanical response of the exciting windings were investigated, taking QFSN-600-2YHG type turbo-generator as the study object. The 3D model of the exciting winding was firstly set up in SolidWorks and imported into Ansys. Then the corresponding mechanical response of the windings under the load generated by the air-gap eccentricity was calculated. The resuh showed that the deformation, the strain, and the stress of the winding were symmetric. The winding bars which were more near the main slot had a larger deformation. The stress and strain at the corner parts of the winding had the largest values, while at the straight line parts the values were the smallest. The corner arcs of the winding in Slot 1,16,2,15, and 8 were the most dangerous positions. The achievements offered a reference for the structure design and the winding fix improvement of turbo-generator.
出处
《电机与控制应用》
北大核心
2016年第8期46-50,62,共6页
Electric machines & control application
基金
国家自然科学基金项目(51307058)
河北省自然科学基金项目(E2015502013
E2014502052)
中央高校基本科研业务费专项基金项目(2015ZD27)
关键词
汽轮发电机
励磁绕组
气隙静态偏心
力学响应
turbo-generator
exciting winding
air-gap static eccentricity
mechanical response
