How to improve the control performance of brushless motors
In many end markets and applications, a clear trend is to replace AC motor pumps or mechanical pumps with high-efficiency BLDC pumps. It is very important to achieve high-resolution control and conversion of current and rotational position information for brushless motors. Although sensorless solutions can be used to detect back electromotive force current, the starting performance of brushless motors may be an issue.
Another method is to use angle sensors based on anisotropic magnetoresistance (AMR) technology, which is both inexpensive and accurate. With the help of ARM sensors, not only can high angular accuracy be achieved, but also the detection components and electronic circuits can be integrated into the same package. This results in a very small sensor subsystem and the ability to locate sensors within the motor components.
This article discusses some opinions on how to improve the control performance of brushless motors from two aspects: brushless controllers and motors.
1. Brushless controller
As the core component of brushless motors, the brushless controller determines the lifespan and efficiency of the motor itself, just like the current hot new energy electric vehicles, which are more stable and efficient for the controller. Therefore, how to improve the performance of motors is one aspect of brushless controllers.
2. Motor
The motor is a reflection of its performance. Only when combined with a brushless controller can its performance be displayed. Therefore, in the manufacturing of motors, it is necessary to choose raw materials for brushless motors, such as rare earth high magnetic steel, in order to more conveniently control the selection of winding materials and internal phase angles.
3. Energy saving
For example, electric bicycles and new energy electric vehicles both use batteries as their power source, which not only saves energy but can also be supplemented by a combination of brushless controllers and brushless motors.
Editor: Lynn
Another method is to use angle sensors based on anisotropic magnetoresistance (AMR) technology, which is both inexpensive and accurate. With the help of ARM sensors, not only can high angular accuracy be achieved, but also the detection components and electronic circuits can be integrated into the same package. This results in a very small sensor subsystem and the ability to locate sensors within the motor components.
This article discusses some opinions on how to improve the control performance of brushless motors from two aspects: brushless controllers and motors.
1. Brushless controller
As the core component of brushless motors, the brushless controller determines the lifespan and efficiency of the motor itself, just like the current hot new energy electric vehicles, which are more stable and efficient for the controller. Therefore, how to improve the performance of motors is one aspect of brushless controllers.
2. Motor
The motor is a reflection of its performance. Only when combined with a brushless controller can its performance be displayed. Therefore, in the manufacturing of motors, it is necessary to choose raw materials for brushless motors, such as rare earth high magnetic steel, in order to more conveniently control the selection of winding materials and internal phase angles.
3. Energy saving
For example, electric bicycles and new energy electric vehicles both use batteries as their power source, which not only saves energy but can also be supplemented by a combination of brushless controllers and brushless motors.
Editor: Lynn
