Standard phase integer slot short-pitch wave winding four-branch wiring method

The invention discloses a standard phase belt integer slot short pitch wave winding four-branch wiring method, which is characterized in that the phase number m of a motor is equal to 3, the pole pair number p of the motor is an odd number, the slot number is Z, the slot number per pole per phase q = Z/(2pm) is an integer, the short pitch amount of the winding is s slot, the short pitch ratio beta is equal to 1-s/(3q), the first pitch y1 of the winding is equal to 3q +/-s, the synthetic pitch y is equal to 6q, and the second pitch is equal to 6q under the electrical characteristics. The wiring method comprises the following steps: 1) dividing a positive phase belt and a negative phase belt; (2) interphase exchange is conducted on the lower-layer coil edge below the p-th pole pair; and 3) forming a new coil and constructing a winding branch. According to the invention, through a method of exchanging interphase coil sides, the short distance of the winding is realized to weaken fifth and seventh harmonics, four