| 大型空冷汽轮发电机定子不对称支路绕组设计与解析分析 |
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| 引用本文： | 李金香,孙玉田,田昕,焦晓霞. 大型空冷汽轮发电机定子不对称支路绕组设计与解析分析[J]. 大电机技术, 2010, 0(1) |
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| 作者姓名： | 李金香 孙玉田 田昕 焦晓霞 |
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| 作者单位： | 哈尔滨电机厂有限责任公司,哈尔滨,150040;哈尔滨电机厂有限责任公司,哈尔滨,150040;哈尔滨电机厂有限责任公司,哈尔滨,150040;哈尔滨电机厂有限责任公司,哈尔滨,150040 |
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| 摘 要： | 本文采用解析法对定子不对称三支路绕组进行分析后,提出了能够设计成不对称支路绕组的条件,指出不对称支路绕组是一种对称绕组,其绕组分布系数可按常规绕组分布系数计算。提出了同相位不对称支路绕组(以下简称为同相位)和非同相位不对称支路绕组(以下简称为非同相位)的概念,指出电势不对称度和绕组环流附加损耗(以下简称为环流损耗)是评价不对称支路绕组性能的重要指标。文中还给出了计算环流损耗的解析方法,在损耗计算时应使用定子绕组漏抗而不是交(直)轴电抗。文中给出的各计算公式和方法可直接用于电机的初步设计,具有很高的实用价值。
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| 关 键 词： | 不对称支路绕组 同相位 非同相位 电势不对称度 绕组环流附加损耗 |
Design and Analytical Study of Asymmetric Parallel-circuit Stator Winding for Large Air-cooling Turbogenerator |
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| LI Jin-xiang,SUN Yun-tian,TIAN Xin,JIAO Xiao-xia. Design and Analytical Study of Asymmetric Parallel-circuit Stator Winding for Large Air-cooling Turbogenerator[J]. Large Electric Machine and Hydraulic Turbine, 2010, 0(1) |
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| Authors: | LI Jin-xiang SUN Yun-tian TIAN Xin JIAO Xiao-xia |
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| Affiliation: | Harbin Electric Machinery Company Limited;Harbin 150040;China |
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| Abstract: | The condition at which Asymmetric Parallel-Circuit Stator Winding (APSW) can be designed is presented in this paper, based on analysis of APSW by analytical method. It is shown that APSW is symmetric winding, its distribution factor is calculated by the formula of conventional winding. The concept of the same phase angle (SPA) and the different phase angle (DPA) of every parallel-circuit are proposed. SPA has some advantages to DPA, thus SPA will be used in the machine design. The performance of APSW is eva... |
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| Keywords: | APSW SPA DPA EMF asymmetric ratio additional losses of circulating current in the winding |
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