The Study of Harmonics in Three Phase Ups System Considering Linear and Non Linear Load
| Author(s) | : | Surabhi S Deshmukh, Pankaj J Bhakre |
| Institution | : | PG Student, Dept. of EE, MSS’s Engineering College, Jalna, Maharashtra, India |
| Published In | : | Vol. 4, Issue 12 — December 2017 |
| Page No. | : | 222-227 |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
UPS (Uninterrupted power system) is an electrical apparatus that provides emergency power to a loadwhen the input power source fails to operate. UPS is used to protect hardware such as computer data centres and otherelectrical equipments where uninterrupted power disruption could cause data loss. This paper proposes a simple optimalvoltage control method for three-phase uninterruptible-power-supply systems. The proposed voltage controller iscomposed of a feedback control term and a compensating control term. The former term is designed to make the systemerrors converge to zero, whereas the latter term is applied to compensate for the system uncertainties and also to reducethe harmonics in the system. Moreover, the optimal load current observer is used to optimize system cost and reliability.The effectiveness of the proposed controller is validated through simulations on MATLAB/Simulink. The comparativeresults of resistive load and non linear load are presented to achieve an excellent performance such as fast transientresponse, small steady-state error, and low total harmonic distortion.
Surabhi S Deshmukh, Pankaj J Bhakre, “The Study of Harmonics in Three Phase Ups System Considering Linear and Non Linear Load”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 4, Issue 12, pp. 222-227, December 2017.
