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AT32 Motor control library algorithm

Target motor type:

Three-phase permanent magnet synchronous motor (brushless DC motor BLDC)

Control methods:

Sensored/sensorless FOC vector control

Sensored/sensorless 120° square-wave commutation mode

Three-phase PWM method:

SVPWM

120° conduction PWM control

Phase current sensing method:

3-shunt current sensing

2-shunt current sensing

1-shunt current sensing and reconstruction method

Auto tuning:

Hall state self-learning (for hall sensor only)

Automatic identification of motor winding parameters

Current PI controller parameter auto tuning

AT-MOTOR-EVB

The AT-MOTOR-EVB board is as a general-purpose low voltage three-phase motor driver, which works with different models of AT32-Motor-Sub boards, including AT32F413, AT32F415, AT32F425, AT32F421, AT32L021, AT32F423 and AT32F455. Based on ARTERY AT32 motor control library, it can be used with AT-Link or a third-party programmer to drive BLDC, AC synchronous motors and asynchronous motors. For details about hardware configuration, refer to UM0011 AT32 MCU-based Low Voltage Motor Control Development Board.

Motor control development software

ARTERY provides multi-mode complete motor control library and free ArteryMotorMonitor software for user interface control. Users can monitor motor running parameters, status and dynamic response waveform through UI interface for online tuning and debugging, which meets development requirements and helps accelerate the development and marketing of motor control applications.

Software requirements

Open demo project (AT32F4xx_MC_Library_Project\motor_evb_2v0\at32f4xx)

Run “ArteryMotorMonitor.exe” directly, without the need for installation.

In Keil, go to Options- Read/Only Memory Areas to set ROM according to the Flash memory size of each AT32 MCU (see Table 1). For example, for AT32F413RCT7 with a 256KB Flash memory, its IROM1 start address is 0x8000000 with a size of 0x3F800, whereas its IROM2 start address is 0x803F800 with a size of 0x800. User can modify the ROM settings of AT32F413RCT7 (see Figure 3). In AT32IDE, modify *.Id file according to the Flash memory size of each AT32 MCU (see Figure 4).

Quick Start Guide

*The debugging process and related projects may be different dependent on the selected motor control method.

Click to get quick start guide for ARTERY motor control applications.

[AN0213] AT32 BLDC Hall Quick Start Guide

[AN0214] AT32 BLDC Sensorless Quick Start Guide

Updating…

Motor control applications

AT32 MCUs are widely applied in motor control applications, including electric scooter/motorcycle, high-speed hair dryer, ceiling fan controller, washing machine, servo controller, high-speed ventilation fan, electrical drilling machine, chain saw and field mower, etc. For more information, please go to“APPLICATIONS [Motor-driven]”on ARTERY official website.