A Communication Technique to Improve the Performance of On Load Tap Changer of Transformer with Renewable Load

The regulating power transformers are utilized in industrial applications and electrical energy networks in on load tap changer. The technological advancements of mixed-type of load, including wind power on load tap changer (OLTC) are addressed in this work. The discussion and presentation of OLTC applications include the general switching concepts for OLTCs. However, on load tap changers of the mechanical type were used in the past, they had a number of drawbacks and restrictions, including arcing, expensive maintenance, poor response times, and other issues. Electronic or solid-state tap changers were adopted to solve these issues. A quick running OLTC regulator with solid-state component are added up as tap changer for controllability which consists of insulated gate bipolar transistor and thyristor to reduce arcing instead of mechanical switches. This work describes the development of a quick OLTC solid-state regulator, with results in MATLAB demonstrating the enhanced on load tap changing performance, which will be useful to the industrial experts and R&D professionals, since the drawback of under load tap changer of cumulative effect of change in load, voltage and the impedance effect is addressed by this novel technique to safeguard against voltage stability of the power system. The performance evaluation can be done by digital signal processing communication from remote.