Enhancement of Power Quality Using Fast Acting Unified Power Quality Conditioner (UPQC)
Vipin Kumar Mishra1, Ritula Thakur2
1Vipin Kumar Mishra, Assistant Professor in Department of Electrical Engineering at Allenhouse Institute of Technology, Kanpur.
2Dr. Ritula Thakur, Assistant Professor in Department of Electrical Engineering at NITTTR, Chandigarh.

Manuscript received on November 15, 2019. | Revised Manuscript received on November 23, 2019. | Manuscript published on November 30, 2019. | PP: 873-880 | Volume-8 Issue-4, November 2019. | Retrieval Number: D7471118419/2019©BEIESP | DOI: 10.35940/ijrte.D7471.118419

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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: The Unified Power Quality Conditioner (UPQC) is the most flexible solution for all power quality problems. The UPQC is one of the APF family members where shunt and series APF functionalities are integrated together to achieve superior control over several power quality problems simultaneously. Reference signal extraction is the most important part of any control. Feedback control requires the minimum information about the process also the corrective action is taken when the control variable is changed but it has some drawbacks that it does not provide any predictive action for any known disturbance. The proposed control technique uses feed forward plus feedback control with synchronously rotating reference frame based reference signal extraction that not only measures the disturbances (voltage sag here) but also take corrective action to compensate for the same before they actually disturb the system. The applications of feed forward control along with the feedback control are able to compensate for the measured disturbance with the desired speed of response that enables faster restoration of voltage at load end. The suggested method is implemented by simulation in MATLAB/SIMULINK to demonstrate the improvement in response time.
Keywords: Power Quality, Active Power Filters, UPQC, Harmonics, DSTATCOM, DVR, d-q Theory.
Scope of the Article: Wireless Power Transmission.