scholarly journals CURRENT STATE OF THE INDUSTRY OF ELECTRIC BRANCH-FREE MOTORS AND METHODS OF THEIR CONTROL

2020 ◽  
Vol 2020 (1) ◽  
pp. 35-37
Author(s):  
Dmitriy Kozlovskiy ◽  
Vladimir Mazur ◽  
Aleksey Pudalov
Keyword(s):  
Motor Control ◽  
Development Trend ◽  
Control Methods ◽  
Brushless Motors ◽  
Motor Industry ◽  
Brushless Motor ◽  
Current State ◽  
The Development Trend

The development trend of the brushless motor industry and their application are described. The advantage of brushless motors in comparison with commutator ones is explained. Brushless motor control methods are described

scholarly journals A controller for brushless direct current electric motors. Part 2. Software

2020 ◽  
Author(s):  
Zenon Syroka
Keyword(s):  
Motor Control ◽  
Direct Current ◽  
Control Method ◽  
Electric Motors ◽  
Brushless Motors ◽  
Control Module ◽  
Brushless Motor ◽  
Data Bus ◽  
Control Modules ◽  
Universal Controller

A universal controller for brushless direct current (BLDC) motors was designed in the presented article. The system is controlled from the user console where operating parameters are set by the user. Signals are transmitted by cables to microcontrollers which control and monitor electric motors. Microprocessors communicate via a data bus. The controller contains the user console module and the motor control module. The user console module generates commands, and motors are controlled and monitored by the control module. Motor control modules operate independently, and each brushless motor has a dedicated control module. Brushless motors can be controlled in bipolar or unipolar mode. The control method is selected by the operator. The user console and motor controllers communicate via the I²C bus.  

Overview of the Control Methods for LTCC Substrate Shrinkage

2014 ◽  
Vol 989-994 ◽  
pp. 2895-2898
Author(s):  
Xiao Dong Liu ◽  
Shao Hong Wang ◽  
Zhao Xia Hou ◽  
Dan Zhou ◽  
Li Qiong Yang
Keyword(s):  
Low Temperature ◽  
High Speed ◽  
High Reliability ◽  
Development Trend ◽  
Control Methods ◽  
Close Attention ◽  
Practical Effect ◽  
Sintering Shrinkage ◽  
The Development Trend ◽  
Ltcc Substrate

As a new integration and packing technology, the low temperature co-fired ceramic (LTCC) technology attracts close attention for its excellent advantages such as high speed transfer characteristics, high reliability, miniaturization, etc. However, the sintering shrinkage of LTCC substrate always affects the practical effect of it. In this paper, the material characteristics, methods to control the sintering shrinkage of LTCC substrate and the development trend for the control methods are mainly overviewed. It is contributed to the research and application of LTCC technology.

scholarly journals A controller for brushless direct current electric motors. Part 1. Electrical and electronic design

2020 ◽  
Author(s):  
Zenon Syroka
Keyword(s):  
Motor Control ◽  
Direct Current ◽  
Control Method ◽  
Electric Motors ◽  
Brushless Motors ◽  
Control Module ◽  
Brushless Motor ◽  
Data Bus ◽  
Control Modules ◽  
Universal Controller

A universal controller for brushless direct current (BLDC) motors was designed in the presented article. The system is controlled from the user console where operating parameters are set by the user. Signals are transmitted by cables to microcontrollers which drive and monitor electric motors. Microprocessors communicate via a data bus. The controller contains the user console module and the motor control module. The user console module generates commands, and motors are controlled and monitored by the control module. Motor control modules operate independently, and each brushless motor has a dedicated control module. Brushless motors can be controlled in bipolar or unipolar mode. The control method is selected by the operator. The user console and motor controllers communicate via the I²C bus.

scholarly journals Sterowanie i konstrukcje bezszczotkowych silników prądu stałego

2020 ◽  
pp. 19-32
Author(s):  
Sylwester Czmil ◽  
Keyword(s):  
Motor Control ◽  
High Efficiency ◽  
Supply Voltage ◽  
Brushless Dc Motor ◽  
Control Methods ◽  
Bldc Motor ◽  
Brushless Motors ◽  
Brushless Dc ◽  
High Durability ◽  
Motor Control Systems

The article presents the working principles and construction of a brushless DC motor. The BLDC motor control methods were discussed, including the division into methods using sensors for determining the rotor position and sensorless methods with an example of implementing BLDC motor control using microcontrollers. High efficiency and high durability as well as falling prices of electronic components and controllers cooperating with BLDC motors in recent years have caused a growing interest in this type of motors. The design of BLDC motors does not require the use of brushes, which in traditional brush motors supply voltage through the commutator to the rotor windings. Brushless motors are characterized by high efficiency, durability and reliability. The use of sensors in BLDC motor control systems increases the number of motor and commutator connections, thereby reducing the reliability of the drive system. For this reason, direct position and speed measurements are often abandoned for the use of sensorless control methods. DC brushless motors have various application areas, and due to their reliability and the ability to control speed, they are used, among others, in electric vehicles, medicine and industry.

Servo Motor Control System and Method of Auto-Detection of Types of Servo Motors

2014 ◽  
Vol 496-500 ◽  
pp. 1510-1515
Author(s):  
Hao Ming Zhang ◽  
Lian Soon Peh ◽  
Ying Hai Wang
Keyword(s):  
Motor Control ◽  
Control System ◽  
Robotic Systems ◽  
Servo Motor ◽  
Brushless Motors ◽  
Brushless Motor ◽  
Three Phase ◽  
Different Types ◽  
Motor Control System

Mixture of DC brushed motors and DC three-phase brushless motors has been employed in complicated robotic systems, in order to control different types of motors may using commercial chipsets. Although these commercial chipsets are capable of driving different types of motors, the users are required to define the type of motors they are controlling through software. Defining the type of motors wrongly may damage the motors. Moreover, if a motor is replaced by another type, users would need to modify the software. The paper provides an auto-detection module that can be employed in a servo motor control system with a hybrid commutation control, wherein the hybrid commutation control can drive either a DC brushed motor or a DC brushless motor.

scholarly journals The development trend of AC-style PDPs

1998 ◽  
Vol 82 (Appendix) ◽  
pp. 311-311
Author(s):  
Tetsuji Okajima ◽  
Chizuka Tani
Keyword(s):  
Development Trend ◽  
The Development Trend

scholarly journals Experimental Study on Wake Evolution of a 1.5 MW Wind Turbine in a Complex Terrain Wind Farm Based on LiDAR Measurements

2020 ◽  
Vol 12 (6) ◽  
pp. 2467 ◽  
Author(s):  
Fei Zhao ◽  
Yihan Gao ◽  
Tengyuan Wang ◽  
Jinsha Yuan ◽  
Xiaoxia Gao
Keyword(s):  
Wind Speed ◽  
Wind Shear ◽  
Wind Farm ◽  
Wind Farms ◽  
Field Measurements ◽  
Development Trend ◽  
Asymmetric Distribution ◽  
Lidar Measurements ◽  
Wind Characteristics ◽  
The Development Trend

To study the wake development characteristics of wind farms in complex terrains, two different types of Light Detection and Ranging (LiDAR) were used to conduct the field measurements in a mountain wind farm in Hebei Province, China. Under two different incoming wake conditions, the influence of wind shear, terrain and incoming wind characteristics on the development trend of wake was analyzed. The results showed that the existence of wind shear effect causes asymmetric distribution of wind speed in the wake region. The relief of the terrain behind the turbine indicated a subsidence of the wake centerline, which had a linear relationship with the topography altitudes. The wake recovery rates were calculated, which comprehensively validated the conclusion that the wake recovery rate is determined by both the incoming wind turbulence intensity in the wake and the magnitude of the wind speed.

Application of Ubiquitous Sensor Network in Collection and Analysis of CNC Machine Tool Processing Status Information

2010 ◽  
Vol 455 ◽  
pp. 621-624
Author(s):  
X. Li ◽  
Y.Y. Yu
Keyword(s):  
Machine Tool ◽  
Sensor Network ◽  
Machine Tools ◽  
Thermal Error ◽  
Development Trend ◽  
Cnc Machine Tools ◽  
Cnc Machine Tool ◽  
Cnc Machine ◽  
Status Information ◽  
The Development Trend

Because of the practical requirement of real-time collection and analysis of CNC machine tool processing status information, we discuss the necessity and feasibility of applying ubiquitous sensor network(USN) in CNC machine tools by analyzing the characteristics of ubiquitous sensor network and the development trend of CNC machine tools, and application of machine tool thermal error compensation based on USN is presented.

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