Stswstm32100 stm32 pmsm foc software development kit. A pmsm consists of three hall sensors located electrically 120 degrees apart. 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. Pmsm foc control with position sensor encoder nxp community. This videos contains an example of field oriented control foc on a permanent magnet synchronous motor. This example uses the hall sensor to measure the rotor position. Sensored encoderbased field oriented control of three. Pdf design and simulation vector control of permanent. There is an encoder project in the software package as well as a hall effect startup foc software project. Pmsm fieldoriented control on frdmkv31f with hall and encoder sensors 1.
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 implements the fieldoriented control foc technique to control the speed of a threephase permanent magnet synchronous motor pmsm. Pdf pmsm position control with a sui pid controller. Feedback on the phase currents can be measured in the motor phase or in the leg shunt at the low side. The permanent magnet synchronous motor pmsm is widely used in various industries due to its high power density, smaller size, and higher efficiency. Sensored encoderbased field oriented control of threephase. Sensorless field oriented control foc of a permanent. Feedback on rotor position and rotor speed is required in the foc motor control. Sensorless field oriented control foc microchip technology.
In this paper, a genetic algorithmbased technique is proposed. Foc can be implemented in either hardware or software. St mc workbench is a pc software which reduces the design effort and time in the stm32 pmsm foc firmware library configuration. Pmsm foc motor control software using xmc infineon technologies. 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.
In the position control mode, the speed controller forms the inner subsystem. Servo control adds a speed and a position controller to this control structure to. 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. Implement speed control for pmsm by using fieldoriented control. Incremental build levels based on modular software blocks. There is an encoder project in the software package as well as a hall effect start up foc software project. In sensored foc implementation, rotor position and. Pmsm position control with a sui pid controller 171. A brushless pmsm has a wound stator, a permanent magnet rotor assembly, and internal or external. A hall effect sensor varies its output voltage based on the strength of the applied magnetic field. The foc software is implemented in the adc interrupt service routine after the end of. The pmsm fieldoriented control block implements a fieldoriented control structure for a permanent magnet synchronous machine pmsm. The feedback can come from sensorless foc or from foc with.
Overall block diagram of sensored field oriented control. Showing my custom foc servo system operating at very low rpm and standstill. Fieldoriented control of pmsm by using hall sensor. Use foc when rotor speed and position are known and your application requires. In this software, phase current sensing is expected from the leg shunt. 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. Feedback on rotor position and rotor speed is required in foc motor control.
A hall sensor identifies the rotor position by detecting the polarity of the rotor magnets. Implement motor speed control using fieldoriented control foc. This fully integrated servo controller with field oriented control can be used for bldcpmsm motors. 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. Pmsm fieldoriented control on mimxrt10xx evk, application note, rev.