WINDING OF AC ELECTRIC MACHINE Russian patent published in 2016 - IPC H02K3/28 H02K17/14 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, namely to multiphase windings of electrical alternating current machines, and can be used in making energy-efficient AC motors, including multispeed ones with poly-synchronicity. Technical result is expansion in scope of application. Winding of AC electric machine is made two-phased in Z slots of magnet core (m = 2) with number of poles as p₀, and includes N phase zones in each phase on a pair of poles equal to eight. Number of magnetic conductor Z slots is determined by relationship Z = 4 mp₀q. Provides for equality of both phases phase zones on pole and new numerical row of Z slots for winding, wherein number of Z slots is divisible by N = 8, which expands possible versions of this class machines. Winding has structure with distribution of coils sides in slots by law

m\Z 1+q q+1q +2q 2q+1 +3q 3q+1 +4q 4q+1 +5q 5q+1 +6q 6q+1 +7q 7q+1 +8q 1 A_q C_q X_q Z_q x_q z_q a_q c_q 2 b_q d_q B_q D_q Y_q H_q y_q h_q

per pair of poles to make semi-phase two-layer winding containing four-zoned per phase and pair of poles of main part and four-zoned per phase and pair of poles of additional part with number of poles 2 p₀.

EFFECT: opposite or accordant semi-phases connection in series or parallel ensures production of number of poles equal to 2 p₀ and 4p₀, while maintaining or changing alternation of phases.

7 cl, 5 tbl, 6 dwg