In the even-numbered ratio of 2n: 1 pole-changing, for the number of poles be led, - three-phase two-layer winding which is cut in six-phase configuration

• 1. 三相电动机每极每相槽数q为6/7/8中的全优绕组 [P] . 中国专利： CN1953296B . 2011.04.13
• 2. 三相电动机每极每相槽数q为6/7/8中的全优绕组 [P] . 中国专利： CN1953296A . 2007-04-25
• 3. In the ratio of 1: 2 pole-changing three-phase machine with two-layer winding which [P] . 德国专利： DE400304C . 1924-08-06

  机译： 比例为1：2的两层变极三相电机

• 4. Two-layer, pole-changing, three-phase winding for electric motors with two speeds of rotation [P] . SE414567B . 1980-08-04

  机译： 两层变极三相绕组，用于两种转速的电动机

• 5. Pole-changing, two-layer, three-phase winding for an electric motor with two speeds of rotation [P] . SE414566B . 1980-08-04

  机译： 用于具有两种转速的电动机的变极两层三相绕组

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• 7. Low loss pole configuration for multi-pole homopolar magnetic bearings [R] . 2001

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• 2. PSO Based Controlled Six-phase Grid Connected Induction Generator for Wind Energy Generation [J] . Arif Iqbal ,Girish Kumar Singh . 中国电工技术学会电机与系统学报(英文) . 2021,第1期
• 3. Stability analysis of unsaturated soil slope during rainfall infiltration using coupled liquid-gas-solid three-phase model [J] . Dong-mei Sun ,Xiao-min Li ,Ping Feng . 水科学与水工程 . 2016,第003期