c coil groups; it is 2p = 26c lap winding placed in z = 90c slots. Coil groups are numbered 1G through 78G (c), coils being grouped in number series 2 1 1 1 1 1 2 1 1 1 1 1 1; slot pitch ys = 4; even-numbered groups of each phase are differentially connected to odd-numbered ones. Groups 1G through 13G of first of similar groupings repeating 6c times have coil turn number (1 - x)wc for double-coil groups 1G and 7G, (1 - x)wc for groups 4G, 10G, 11G, and wc for remaining groups with starts of phases I, II, III running from starts of groups 1G, 27G, 53G, respectively, where c = 1 and 2; wc is turn number in completely filled up slot at optimal value of x = xopt = 0.32.;EFFECT: improved harmonic content of mmf and reduced differential dissipation.;1 cl, 4 dwg"/>
THREE-PHASE DOUBLE-LAYER FRACTIONAL-SLOT (Q=15/13) LAP WINDING FOR ELECTRICAL MACHINES
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THREE-PHASE DOUBLE-LAYER FRACTIONAL-SLOT (Q=15/13) LAP WINDING FOR ELECTRICAL MACHINES
THREE-PHASE DOUBLE-LAYER FRACTIONAL-SLOT (Q=15/13) LAP WINDING FOR ELECTRICAL MACHINES
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机译：电机的三相双层分数槽（Q = 15/13）搭接绕组
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FIELD: electrical and electromechanical engineering; three-phase squirrel-cage induction motors and synchronous generators.;SUBSTANCE: proposed three-phase double-layer symmetrical fractional-slot winding has number of slots per pole per phase q = 15/13 of 6p = 78c coil groups; it is 2p = 26c lap winding placed in z = 90c slots. Coil groups are numbered 1G through 78G (c), coils being grouped in number series 2 1 1 1 1 1 2 1 1 1 1 1 1; slot pitch ys = 4; even-numbered groups of each phase are differentially connected to odd-numbered ones. Groups 1G through 13G of first of similar groupings repeating 6c times have coil turn number (1 - x)wc for double-coil groups 1G and 7G, (1 - x)wc for groups 4G, 10G, 11G, and wc for remaining groups with starts of phases I, II, III running from starts of groups 1G, 27G, 53G, respectively, where c = 1 and 2; wc is turn number in completely filled up slot at optimal value of x = xopt = 0.32.;EFFECT: improved harmonic content of mmf and reduced differential dissipation.;1 cl, 4 dwg
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机译：领域：电气与机电工程;三相鼠笼式异步电动机和同步发电机。物质：拟议的三相双层对称分数槽绕组，每相每极的槽数q = 15/13 of 6p = 78 c线圈组;它是2p = 26 <图像文件=“ 00000007.GIF” he =“ 2” id =“ imag00000007” imgContent =“ undefined” imgFormat =“ GIF” wi =“ 2” /> c搭接绕组置于z = 90 <图片文件=“ 00000008.GIF” he =“ 2” id =“ imag00000008” imgContent =“ undefined” imgFormat =“ GIF” wi =“ 2” /> c插槽。线圈组编号为1G到78G（c），线圈按编号系列2 1 1 1 1 1 2 2 1 1 1 1 1 1 1分组;槽距y s = 4;每相的偶数组差分连接到奇数组。第一个相似分组的第1G组到第13G组重复6 <图像文件=“ 00000009.GIF” he =“ 2” id =“ imag00000009” imgContent =“ undefined” imgFormat =“ GIF” wi =“ 2” /> c次1G和7G双线圈组的线圈匝数（1-x）w c ，4G，10G，11G和w组的线圈匝数为（1-x）w c c 对于分别从组1G，27G，53G的起始处开始的I，II，III阶段开始的其余组，其中c = 1和2; w c 是在x = x opt = 0.32的最佳值下完全填满的插槽中的匝数。效果：提高了mmf的谐波含量并降低了差分耗散。 cl，4 dwg
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