Dynamics of Speed Control of Dc Motor using Combine Armature and Field Control with Pi Controller
Oti Stephen Ejiofor1, Agada Stephen C.2, Obe Chinedu3, Salihu Ahmed4, Ogbuefi Uche C.5

1Oti Stephen Ejiofor, Electrical Engineering Dept, University of Nigeria, Nsukka Enugu State Nigeria.
2Agada Stephen C, Electrical/Electronic Engineering Dept, Michael Okpara University of Agriculture, Umudike Abia State, Nigeria.
3Obe Chinedu Titus, Electrical Engineering Dept, University of Nigeria, Nsukka Enugu State Nigeria.
4Ahmed Salihu, Electrical Engineering Dept, University of Nigeria, Nsukka Enugu State Nigeria.
5Ogbuefi Uche C*, Electrical Engineering Dept, University of Nigeria, Nsukka Enugu State Nigeria.
Manuscript received on January 23, 2020. | Revised Manuscript received on February 05, 2020. | Manuscript published on February 30, 2020. | PP: 3585-3591 | Volume-9 Issue-3, February 2020. | Retrieval Number:  C6043029320 /2020©BEIESP | DOI: 10.35940/ijeat.C6043.029320
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: This work examines the intrigues associated with the speed control of DC motor by nonlinear joint control of the voltage of the armature cum the field current in conjunction with the proportional integral controller. In the case of controlling the armature, the field current component is kept constant while the armature in contained with variable voltage. However, in the case of controlling the field, the voltage of the armature is kept constant while the field contends with a variable voltage. Both the field and the control of armature were used to acquire a DC motor speed control enhancement which offers a stability of the system. The proportional integral (PI) is for the purpose of extension for identification of better alternative. As consideration is given to the electrical, electromagnetic and the motional or mechanical arrangements, a model is developed for the separately excited DC motor (SEDM) which is mathematically analyzed. The originating models of the DC motor speed control schemes are simulated with the help of MATLAB/Simulink. The results obtained herein would be very useful for the control and process engineering oufits.
Keywords: Armature control, DC motor, Field control, PI controller, Speed control,