Model Predictive Speed Control of DC-DC Buck Converter Driven DC-motor with Various Load Torque Values

2020 ◽  
Author(s):  
Mohamed E Albira ◽  
Abdullah Alzahrani ◽  
Mohamed Zohdy
Keyword(s):  
Speed Control ◽  
Dc Motor ◽  
Buck Converter ◽  
Load Torque ◽  
Torque Values

A High Accuracy Speed Control of DC Motor Using Adaptive Torque Compensation on Lyapunov Stability with Kalman Filter

2016 ◽  
Vol 835 ◽  
pp. 673-680
Author(s):  
Chermdhong Prattanaruk ◽  
J. Srisertpol
Keyword(s):  
Kalman Filter ◽  
Control System ◽  
Lyapunov Stability ◽  
Speed Control ◽  
Dc Motor ◽  
High Accuracy ◽  
Torque Control ◽  
Motor Speed ◽  
Load Torque ◽  
Accuracy Speed

The speed control system of DC motor normally uses increasing of electric current and voltage for obtaining required speed and torque with regardless of effects from variable of load torque to system. Including that noise will make some errors in speed and torque control. This research aims to present a method for developing the high accuracy in speed control of DC motor by a technique of adaptive torque compensation that is evolved on Lyapunov stability and using Kalman filter for screening out the evident noises in the system. Results reveals that the adaptive torque compensator evolved from the Lyapunov stability can compensate a stable torque and when it is worked with Kalman filter, it can compensate torque correctly and can control more accuracy of motor speed.

scholarly journals Sensorless Load Torque Estimation and Passivity Based Control of Buck Converter Fed DC Motor

2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
S. Ganesh Kumar ◽  
S. Hosimin Thilagar
Keyword(s):  
Tracking Error ◽  
Output Feedback Control ◽  
Algebraic Approach ◽  
Dc Motor ◽  
Buck Converter ◽  
Load Torque ◽  
Constant Type ◽  
Reduced Order Observer ◽  
Passivity Based Control ◽  
Error Dynamics

Passivity based control of DC motor in sensorless configuration is proposed in this paper. Exact tracking error dynamics passive output feedback control is used for stabilizing the speed of Buck converter fed DC motor under various load torques such as constant type, fan type, propeller type, and unknown load torques. Under load conditions, sensorless online algebraic approach is proposed, and it is compared with sensorless reduced order observer approach. The former produces better response in estimating the load torque. Sensitivity analysis is also performed to select the appropriate control variables. Simulation and experimental results fully confirm the superiority of the proposed approach suggested in this paper.

scholarly journals Sistem Kontrol Torsi pada Motor DC

2016 ◽  
Vol 6 (1) ◽  
pp. 93
Author(s):  
Arifin Wahid Ibrahim ◽  
Triyogatama Wahyu Widodo ◽  
Tri Wahyu Supardi
Keyword(s):  
Control System ◽  
Speed Control ◽  
Maximum Load ◽  
Dc Motor ◽  
Current Control ◽  
Torque Control ◽  
Motor Speed ◽  
Current Field ◽  
Load Torque ◽  
Heavy Loads

AbstrakPenggunaan motor DC di dunia industri sangat penting. Kecepatan dan torsi motor DC sangat mempengaruhi kualitas dan kuantitas produk yang dihasilkan. Untuk itu, diperlukan sistem kontrol motor DC yang dapat diatur kecepatan dan torsinya. Banyak pelaku industri mengeluhkan kerusakan pada motor DC disebakan beban yang diangkut motor melebihi kemampuan torsi motornya. Berdasarkan permasalahan tersebut dibuatlah sistem kontrol torsi motor DC.Sistem kontrol torsi dibuat dengan cara mengatur arus armaturnya pada motor DC penguat terpisah dengan kondisi arus fieldnya tetap. Sistem kontrol torsi ini bersifat dua level yaitu, sistem kontrol kecepatan dan sistem kontrol arus sehingga sinyal keluaran sistem kontrol kecepatan akan menjadi sinyal reference arus.Pengujian dilakukan dengan beban maksimal 3690 gram dan arus nominal sebesar 0,8 A atau torsi nominal sebesar 0,323 Nm. Hasil menunjukkan torsi efektif motor mampu diatur dengan kisaran 0,182 Nm - 0,243 Nm. Diharapkan dengan harga torsi efektif yang diatur mampu menahan beban seberat apapun tanpa merusak motor tersebut.Kata kunci—  Motor DC, Kecepatan, TorsiAbstractThe use of a DC motor in the industrialized world is very important. Speed of DC motor and torque of DC motor greatly affects quality and quantity of product. Therefore, we need control system of a DC motor that can be set speed and torque. The number of industry players complained about damage to the DC motor because transported load torque of motor exceeds capabilities of torque of DC motor. Based on these problem, we should make torque control system in DC motor.Torque control system made by regulating armature current of DC motor separately excited with current field  constant condition. Torque control system consist of speed control and current control, namely control system two level. Output signal speed control system will be the current reference signal.Testing has been carried out with a maximum load of 3690 grams and a nominal current of 0.8 A or nominal torque of 0.323 Nm. The results shows the effective torque of motor is able to be set in the range of 0.182 Nm - 0,243 Nm. Expected to value effective of regulated torque is able to withstand infinite heavy loads without damaging the motor.Keywords—  DC Motor, Speed, Torque

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