scholarly journals Hall-Sensor-Based Position Detection for Quick Reversal of Speed Control in a BLDC Motor Drive System for Industrial Applications

Electronics ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 1149
Author(s):  
Mohanraj Nandakumar ◽  
Sankaran Ramalingam ◽  
Subashini Nallusamy ◽  
Shriram Srinivasarangan Rangarajan
Keyword(s):  
Direct Current ◽  
Rolling Process ◽  
Hall Sensor ◽  
Current Control ◽  
Drive System ◽  
Motor Drive ◽  
Steel Rolling ◽  
Position Detection ◽  
Finishing Mill ◽  
Motor Drive System

This paper proposes the novel idea of eliminating the front-end converters used indirect current (DC) bus voltage variation, thereby allowing for control of the speed of the brushless direct current (BLDC) motors in the two-quadrant operation of a permanent magnet brushless direct current (PMBLDC) motor, which is required for multiple bi-directional hot roughing steel rolling mills. The first phase of steel rolling, the manufacture of plates, strips etc., using hot slabs from the continuous casting stage, is carried out for thickness reduction, before the same is sent to the finishing mill for further mechanical processing. The hot roughing process involves applying high, compressive pressure, using a hydraulically operated mechanism, through a pair of backup rolls and work rolls for rolling. Overall, the processes consist of multiple passes of forward and reverse rolling at increasing roll speeds. The rolling process was modeled, taking into account parameters like roller dimensions, angle and length of contact, and rolling force, at various temperatures, using actual data obtained from a steel mill. From this data, speed and torque profiles at the motor shaft, covering the entire rolling process, were created. A profile-based feedback controller is proposed for setting the six-pulse inverter frequency and parameters of the pulse width modulated (PWM) waveform for current control, based on Hall sensor position, and the same is implemented for closed loop operation of the brushless direct current motor drive system. The performance enhancement of the two different controllers was also evaluated, during the rolling of 1005 hot rolled (HR) steel, and was taken into consideration in the research analysis. The entire process was simulated in the MATLAB/Simulink platform, and the results verify the suitability of an entire-drive system for industrial steel rolling applications.

scholarly journals Novel Efficacious Utilization of Fuzzy-Logic Controller-Based Two-Quadrant Operation of PMBLDC Motor Drive Systems for Multipass Hot-Steel Rolling Processes

Electronics ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 1008 ◽  
Author(s):  
Mohanraj Nandakumar ◽  
Sankaran Ramalingam ◽  
Subashini Nallusamy ◽  
Shriram Srinivasarangan Rangarajan
Keyword(s):  
Fuzzy Logic ◽  
Fuzzy Logic Controller ◽  
Rolling Process ◽  
Operating Conditions ◽  
Drive System ◽  
Motor Drive ◽  
Bldc Motor ◽  
Steel Rolling ◽  
Drive Systems ◽  
Motor Drive System

This study investigates the rough steel-rolling process, which requires repeated and rapid bidirectional hot-rolling operations and proposes a fuzzy-logic-controller-based brushless electric DC (BLDC) motor drive system for the same. We present a modeling of the hot-steel rough-rolling process using a set of metallurgical parameters and mechanical equations based on their operating conditions, specific features and characteristics, all obtained from actual data. The above equations and related parameters were modeled in MATLAB/Simulink schematic under variations in temperature and slab thickness corresponding using three different hot-rolled (HR) steel specimens. This led to the creation of a pair of speed and torque- profiles with alternate polarities for successive passes covering the entire rolling process for each steel specimen. A fuzzy logic controller utilized the above profiles on the motor shaft by incorporating speed and current feedback loops to attain reference speed and calculation of instantaneous stator currents of the BLDC motor with respective phase sequences, so as to satisfy the torque-profile. Simulation results showing the detailed performance of the drive system are presented. Further, experimental work on a BLD-motor-drive system is presented, along with loading arrangements and an arm controller embedded with control algorithm for the multi-loop feedback system used for the closed loop speed control. The efficacy of the new applications proposed in this study for the first time can be seen from the validation of the results from the BLDC motor with its fuzzy-based controller in terms of simulation and hardware, thereby serving to be an attractive alternative to conventional induction motor drive systems for steel rolling.

scholarly journals Step-by-Step Development and Implementation of FS-MPC for a FPGA-Based PMSM Drive System

Electronics ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 395
Author(s):  
Ipsita Mishra ◽  
Ravi Nath Tripathi ◽  
Vijay Kumar Singh ◽  
Tsuyoshi Hanamoto
Keyword(s):  
Real Time ◽  
System Development ◽  
Permanent Magnet Synchronous Motor ◽  
Harmonic Distortion ◽  
Current Control ◽  
Drive System ◽  
Motor Drive ◽  
Primary Concern ◽  
Depth Analysis ◽  
Motor Drive System

In this paper, finite-set model-predictive control (FS-MPC) is inducted for a motor drive system. The dynamic response and multiple constraint handling nature of FS-MPC are the major factors that stand out among the controller family. However, for real-time implementation, the computational burden of FS-MPC is a primary concern. Due to the parallel processing nature and discrete nature of the hardware platform, the field-programmable gate array (FPGA) can be an alternative solution for the real-time implementation of the controller algorithm. The FPGA is capable of handling the computational requirements for FS-MPC implementation; however, the system development involves multiple steps that lead to a time-consuming debugging process. Moreover, specific hardware coding skill makes it more complex, corresponding to an increase in system complexity, which leads to a tedious task for the system development. This paper presents a FPGA-based implementation of the predictive current control of a permanent magnet synchronous motor (PMSM). FS-MPC of the PMSM drive system is designed and implemented using the digital model integration approach provided by the Xilinx system generator (XSG) and VIVADO platform. The step change in the load disturbance as well as the reference speed is considered for the analysis of the controller for the motor drive system. Moreover, the steady state error and harmonic distortion in the motor current is considered for an in-depth analysis of the system performance corresponding to different sampling frequencies.

scholarly journals Bidirectional Harmonic Current Control of Brushless Doubly Fed Motor Drive System Based on a Fractional Unidirectional Converter Under a Weak Grid

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 19926-19938
Author(s):  
Zhenping Li ◽  
Xuefan Wang ◽  
Ming Kong ◽  
Xi Chen
Keyword(s):  
Current Control ◽  
Drive System ◽  
Motor Drive ◽  
Harmonic Current ◽  
Weak Grid ◽  
Doubly Fed ◽  
Motor Drive System

The Design of Switched Reluctance Motor Drive System Based on Single Chip Microcontroller and CPLD

2012 ◽  
Vol 263-266 ◽  
pp. 3-8
Author(s):  
Chen Ning Wang ◽  
Shi Jun Chen ◽  
Chang Li Zha
Keyword(s):  
Switched Reluctance Motor ◽  
Current Control ◽  
Drive System ◽  
Motor Drive ◽  
Control Loop ◽  
Single Chip ◽  
Switched Reluctance ◽  
Reluctance Motor ◽  
Single Chip Microcontroller ◽  
Motor Drive System

A three-phase 12/8 pole switched reluctance motor drive system is introduced based on single chip microcontroller STC12LE5410AD and CPLD EPM240T100C5N. The design details of the controller are described in this application .To solve the nonlinear problem of switched reluctance motor, PI control algorithms are used to achieve the motor current control loop and speed control loop. The experimental results show that the hardware and software design of switched reluctance motor drive system are reasonable, and the proposed dual closed-loop control method is correct and feasible.

scholarly journals Design and Implementation of Improved Three Port Converter and B4-Inverter Fed Brushless Direct Current Motor Drive System for Industrial Applications

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 149093-149112
Author(s):  
Sathish Kumar Shanmugam ◽  
Sasikala Ramachandran ◽  
SenthilKumar Arumugam ◽  
Sanjeevi Pandiyan ◽  
Anand Nayyar ◽  
...  
Keyword(s):  
Direct Current ◽  
Industrial Applications ◽  
Drive System ◽  
Motor Drive ◽  
Design And Implementation ◽  
Direct Current Motor ◽  
Motor Drive System ◽  
Brushless Direct Current Motor

scholarly journals Field Programmable Gate Array-Based Linear Shaft Motor Drive System Design in Terms of the Trapezoidal Velocity Profile Consideration

Machines ◽  
2019 ◽  
Vol 7 (3) ◽  
pp. 59 ◽  
Author(s):  
Chiu-Keng Lai ◽  
Hsiang-Yueh Lai ◽  
Yong-Xiang Tang ◽  
En-Shen Chang
Keyword(s):  
Velocity Profile ◽  
Estimation Method ◽  
Current Control ◽  
Drive System ◽  
Control Technique ◽  
Motor Drive ◽  
Power Module ◽  
Digital Controllers ◽  
Field Programmable ◽  
Motor Drive System

Owing to the benefits of programmable and parallel processing of the field programmable gate arrays (FPGAs), they have been widely used to the realization of digital controllers and motor drive systems. In this study, we adopt the FPGA chip to realize the Linear Shaft Motor (LSM) drive system which includes the position, speed and current vector controls. Linear shaft motor is a special motor which has the magnet as the shaft and stator coils are on the forcer. Thus, it reveals a small mechanical time constant. In addition, the electrical side can be looked as a general three-phase Alternating Current (AC) system which can be powered by inverter and vector control technique can be applied to the system. The designed system needs high performance calculation ability about position/speed control and vector current control loops. The mathematical model of linear shaft motor drive system is first built and simulated by MATLAB/Simulink and the accuracy about the effect from the speed estimation method is proposed. The resulting digital model of the drive system is stored into Verilog Hardware Description Language (Verilog HDL) codes and realized by FPGA. At last, the hardware circuits as well as the power module are used to test the performance of the developed hardware system in terms of the trapezoidal velocity profile. The experimental results show that the designed system realized by FPGA has attained the desired performance.

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