Fuzzy Controlled Ultra-Capacitor Based DVR (UCAP-DVR) for Power Quality Enhancement - Circuits and Systems

CS > Vol.7 No.13, November 2016

Circuits and Systems

Volume 7, Issue 13 (November 2016)

ISSN Print: 2153-1285 ISSN Online: 2153-1293

Google-based Impact Factor: 0.48 Citations

Fuzzy Controlled Ultra-Capacitor Based DVR (UCAP-DVR) for Power Quality Enhancement ()

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DOI: 10.4236/cs.2016.713338 1,507 Downloads 2,837 Views Citations

Author(s)

R. Bhavani, Dr. N. Rathina Prabha

Affiliation(s)

Department of Electrical and Electronics Engineering, Mepco Schlenk Engineering College, Sivakasi, India.

ABSTRACT

In recent years, a rapid decrease in the cost of various energy storage technologies and their integration into grid becomes a reality with the advent of smart grid. The Dynamic Voltage Restorer (DVR) is a custom power device that has an excellent dynamic capability used to provide voltage sag, swell compensation in distribution systems. Among the energy storage devices, Ultra-Capacitors (UCAP) have ideal characteristics such as high power and low energy density essential for the compensation of voltage sag and swell, which require high power for short interval of time. This paper presents an integration of rechargeable UCAP with DVR. This UCAP-DVR presents a modular, flexible system configuration that will have an active power capability and also provide deep, extended mitigation for power quality problems. The DVR is integrated into UCAP via bidirectional DC-DC converter which supports a rigid dc-link voltage for DVR and also helps in compensating temporary voltage sag and swell. FUZZY LOGIC Controller is used to enhance the performance of UCAP-DVR. The simulation model for the proposed system has been developed in MAT-LAB and the performance over conventional DVR is compared with the results obtained.

KEYWORDS

Dynamic Voltage Restorer (DVR), Ultra-Capacitor (UCAP), DC-DC Converter, Voltage Sag, Voltage Swell, Fuzzy Logic Controller (FLC)

Share and Cite:

Bhavani, R. and Prabha, D. (2016) Fuzzy Controlled Ultra-Capacitor Based DVR (UCAP-DVR) for Power Quality Enhancement. Circuits and Systems, 7, 4098-4112. doi: 10.4236/cs.2016.713338.

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