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Design of Triac Based on Load Tap Changer for Constant Load Voltage
, Vishal R. Kikale, Rushikesh M. Patharkar, Shubham R. Kulkarni, Vinit S. Ghone
Published in Serials Publications
Volume: 10.0
Issue: 8.0
Pages: 313.0 - 320.0
The On Load Tap Changing (OLTC) regulators have been widely used since the introduction of electrical energy.They ensure a good regulation of the output voltage in presence of large variations of the input voltage with typicalresponse time from several milliseconds to seconds. Earlier mechanical type of on load tap changers were intopractice. But they had considerable limitations and drawbacks like arcing, high maintenance, service cost and slowreaction times. In order to overcome these limitations and drawbacks electronic tap changers are developed. Thecontinuous growth usage of power semiconductor devices, such as the Insulated gate bi-polar transistor (IGBT),Triac, MOSFET, GTO has assisted us for the functioning of OLTC regulators. It is also helpful in fixing otherproblems such as flicker and sags, under voltage, over voltage and noise.The major idea in the solid state assisted tap changer is that they provide us more control during the tap-changingprocess instead of mechanical switches which helps in reducing the arcing phenomena. In this paper implementationof a fast OLTC regulator is present providing tapping on the primary side. The objective is to reduce losses andhave a faster switching. The variation in time switching response is much lower than the one corresponding to thetraditional regulators. In this paper we are using primary tapping instead of secondary tapping to reduce the switchinglosses and to get constant output voltage on load side with faster switching response.
About the journal
JournalInternational Journal of Control Theory and Applications
PublisherSerials Publications
Open Access0