For applications which require fast dynamic response for speed and torque changes, sophisticated control techniques, such as field oriented control foc are required. This example uses the hall sensor to measure the rotor position. Pmsm fieldoriented control on frdmkv31f with hall and. Overall block diagram of sensored field oriented control. Introducing concepts of foc motor control, the focus is on the theory of the permanent magnet synchronous motor pmsm operation and field oriented control foc used to control the speed and position of pmsms rotor. Feedback on rotor position and rotor speed is required in the foc motor control. This example implements the fieldoriented control foc technique to control the speed of a threephase permanent magnet synchronous motor pmsm. Pmsm position control with a sui pid controller 171. In this paper, a genetic algorithmbased technique is proposed. Foc can be implemented in either hardware or software. The permanent magnet synchronous motor pmsm is widely used in various industries due to its high power density, smaller size, and higher efficiency. Stm32 pmsm foc sdk is part of sts motor control ecosystem which offers a wide range of hardware and software solutions for motor control applications. The feedback can come from sensorless foc or foc with sensors. A brushless pmsm has a wound stator, a permanent magnet rotor assembly, and internal or external.
Use foc when rotor speed and position are known and your application requires. Stswstm32100 stm32 pmsm foc software development kit. This fully integrated servo controller with field oriented control can be used for bldcpmsm motors. In this software, phase current sensing is expected from the leg shunt. Pmsm foc control with position sensor encoder nxp community. Implement motor speed control using fieldoriented control foc. Incremental build levels based on modular software blocks. Field oriented control foc is a performant ac motor control strategy that decouples torque and flux by transforming the stationary phase currents to a rotating frame. This videos contains an example of field oriented control foc on a permanent magnet synchronous motor. Sensored encoderbased field oriented control of threephase. A hall effect sensor varies its output voltage based on the strength of the applied magnetic field. Pmsm fieldoriented control on mimxrt10xx evk, application note, rev.
Sensorless field oriented control foc microchip technology. There is an encoder project in the software package as well as a hall effect start up foc software project. Fieldoriented control of pmsm by using hall sensor. In the position control mode, the speed controller forms the inner subsystem. The pmsm fieldoriented control block implements a fieldoriented control structure for a permanent magnet synchronous machine pmsm. Scope plot of reference position to servo and feedback position. Implement speed control for pmsm by using fieldoriented control.
St mc workbench is a pc software which reduces the design effort and time in the stm32 pmsm foc firmware library configuration. Field oriented control foc is a method of motor control to generate three phase sinusoidal signals which can easily be controlled in frequency and amplitude in order to minimize the current, which in turn means to. A hall sensor identifies the rotor position by detecting the polarity of the rotor magnets. A pmsm consists of three hall sensors located electrically 120 degrees apart. The feedback can come from sensorless foc or from foc with. Pmsm fieldoriented control on frdmkv31f with hall and encoder sensors 1. Pdf pmsm position control with a sui pid controller. Feedback on rotor position and rotor speed is required in foc motor control. Introduction this document describes the implementation of the sensor hall and encoder sensors and sensorless speed motor control software for 3phase permanent magnet synchronous motors pmsm, including the motor parameters identification algorithm, on the. There is an encoder project in the software package as well as a hall effect startup foc software project.
The foc software is implemented in the adc interrupt service routine after the end of. Servo control adds a speed and a position controller to this control structure to. Pmsm foc motor control software using xmc infineon technologies. In sensored foc implementation, rotor position and. March 2007 rev 1 153 an2290 application note flux control simulink and software library of a pmsm introduction this application note describes a software library for the electric motor control implementing. Flux control simulink and software library of a pmsm.
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