Overview This reference design enables development of a vector control algorithm for a three-phase AC induction motor implemented on NXP® digital signal controllers MC56F8013/MC56F8023. Targeted mainly at consumer and industrial applications Cost-effective and highly reliable, the algorithm implements a single shunt current sensing, eliminating the need for more than one sensor High range of motor operating speeds up to 18000RPM An adaptive closed loop rotor flux estimator enhances control performance and increases the overall robustness of the system A reference manual provides a detailed description of the application, including a design of hardware and software Features 3-phase AC induction motor drive Designed to fit into consumer and industrial applications Uses 56F8013 or 56F8023 32 MIPS Digital Signal Controller Running on a 3-phase High Voltage Power Stage Control technique incorporating: Vector control of three-phase AC induction motor with position encoder Closed-loop speed control Both directions of rotation Both motor and generator modes Reconstruction of three-phase motor currents from DC-Bus shunt resistor Closed loop current control Flux and torque independent control Adaptive rotor flux space-vector estimator Field-weakening for high speeds High-speed range, max speed – 18000 RPM (2-pole motor) FreeMASTER software control interface (motor start/stop, speed setup) FreeMASTER software monitor FreeMASTER software graphical control page (required speed, actual motor speed, start/stop status, DC-Bus voltage level, motor current, system status) FreeMASTER software speed scope (observes actual and desired speeds, DC-Bus voltage and motor current) FreeMASTER software high-speed recorder (reconstructed motor currents, vector control algorithm quantities) DC-Bus overvoltage and undervoltage, overcurrent protection Block Diagram Board Design Resources
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