METHOD FOR CONTROL OF INDUCTOR MACHINE Russian patent published in 2019 - IPC H02P25/08 H02P25/83 H02P25/92 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering and can be used in transport vehicles and tractors with electric transmission and in industrial drives. Rotor (2) of inductor machine (1) has z teeth, and stator - q phase windings (3) connected by "star", and converter (4) of inductor machine consists of one common half-bridge (5) with control input (7) and q of phase half-bridges (6) with control inputs (8). Output (9) of common half-bridge is connected to output (10) of each phase half-bridge through corresponding phase winding (3). Half-bridges are powered from DC source (11). Method of control of inductor machine (1) is carried out by control circuit (12) and consists in the fact that: continuously measuring angle θ rotor position and current i₁, …i_q phase windings; forming settings reƒ₁(θ), … reƒ_q(θ), absolute value of which is periodically repeating function from angle θ rotor position with repetition period 360°/z; is supplied to inputs of phase control half-bridge control circuits (8) of pulse sequence u₁, …u_q and modulate them so as to provide control of currents i₁, …i_q phase windings in accordance with settings reƒ₁(θ), … reƒ_q(θ); sending to control input (7) of common half-bridge pulse sequence u₀, which is characterized by coefficient d₀ filling; pulse sequence u₀ is modulated so that coefficient d₀ filling is determined by one of two equations: d₀= d, d₀= 1-d, which alternate depending on angle θ rotor position with 360-degree interval/(q⋅z), where d is a variable with an allowable range from 0 to 1/2.

EFFECT: technical result is reduced torque ripple without using an expensive converter.

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