Permanent magnet synchronous motor speed control system and method for electric vehicle
A permanent magnet synchronous motor, electric vehicle technology, applied in the direction of motor generator control, motor control, AC motor control, etc., can solve the problem of friction coefficient change, increase torque and other problems
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[0127] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0128] Such as figure 1 As shown, a permanent magnet synchronous motor (permanent magnet synchronous motor, PMSM) control system for electric vehicles, including: fuzzy adaptive sliding mode speed controller, extended state observer (extended state observer, ESO), dq axis internal model current control Inverter, anti-park transformation module, SVPWM vector pulse width modulation module, three-phase inverter, permanent magnet synchronous motor, clark transformation module, park transformation module, current sensor and position and speed sensor.
[0129] Described position and speed sensor obtain position θ and speed ω through seeking m After that, the given velocity ω ref and the output speed signal ω m do difference, and ω ref with ω m The differential of the difference is used as the input of the fuzzy adapti...
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