Technical Forum
2023-04-20
Application of intelligent control in brushless DC motors
1. Intelligent control evolution
Intelligent control refers to the multi-directional connection from information processing and information transmission to corresponding feedback. The ultimate goal of intelligent control is to provide effective support or even solutions for any difficulties encountered. Nowadays, most research targets focus on areas such as artificial intelligence, conventional complexity theory and high-accuracy academic research.
With the swift development of intelligent control and the introduction of relevant theory expansion and techniques, most current applications involve complex calculations, strict logic, structure matching and other relevant theories and techniques. As the purpose of intelligent control is to provide convenience, we can very easily see its applications; from automatic vending machines on the streets to mechanical arms in factories. These applications have silently made their way into daily life. The special effects in the movie “Minority Report” are becoming more of a reality, and one of the key features of promoting technological evolution is intelligent control.
2. Evolution of intelligent control in brushless motors
The most representative evolution of intelligent control is the invention of the brushless motor. Via the integration of controller and transistor calculations, the structure and the service life of conventional brush motors have significantly changed. Furthermore, the on/off functionalities of power sources can be calculated using highly efficient chips, so the value and direction of phases and currents can be quantized. Ultimately, the rotation speed of motors can be controlled.
The following briefly introduces the control principle of brushless DC motors:
Brushless DC motors replace the mechanical phase change with an electronic phase change. This breakthrough overcomes the disadvantages of conventional motors resulting from wear and tear. It also opens up possibilities for intelligent control of motors. To satisfy different control requirements, various servo motors, synchronous motors and stepping motors have also been created accordingly. The most basic brushless DC motors have gradually come to play an important role; most products return to brushless DC motors as a solution due to lower costs, which has indirectly promoted the faster development of brushless DC motors in recent years.
3. How can brushless control be smarter and more efficient?
To achieve stable, fast and correct control, the demands of the stable status balance and dynamic track in intelligent control have become more and more clear. Currently, most domestic and foreign scholars are adopting optimized calculation solutions to improve the efficiency of brushless controllers, such as fuzzy algorithms, sliding mode structure control, gray algorithms, etc.; all of which are used to achieve faster feedback in intelligent controllers. However, regardless of how complex the optimization of motors is, the final problem is system integration. How can intelligent control achieve maximum efficiency and stable operation in various products? That's the ultimate question. For now, the most recommended step for solving the problem is to select the proper control solution for that specific product and then optimize its calculations. The first and most important basis is to understand your product; effectively removing unnecessary functions and discovering how proper control can result in smarter control and more efficiency.
4. Summary of brushless controllers
Intelligent control motors serve as the execution component, test component and resolving component in automatic control systems and calculation devices respectively. As the concept of control is introduced to brushless motors, issues such as difficulty in implementation, high accuracy and swift responses could be overcome. By means of highly efficient conversion and accurate control, more improved products can also continue to be developed. Ultimately, intelligent control has ignited the evolution from brush to brushless: “No limit, no end”.
