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Time domain based Digital PWM controller for DC-DC converter

2014; Taylor & Francis; Volume: 55; Issue: 4 Linguagem: Inglês

10.7305/automatika.2014.12.552

1848-3380

S. Vijayalakshmi, Thangasamy Sree Renga Raja,

Silicon Carbide Semiconductor Technologies

AbstractDiscrete Pulse Width Modulated controller for buck converter is described. The key building blocks are Analog to Digital converter, compensator, and digital pulse width modulator is introduced to meet the requirement of perfect output voltage regulation, high-speed dynamic response, and programmability. The discrete controller method bypasses errors related to the conversion from the continuous to the discrete domain based on the time domain method. The simulation results are proven with experiment conducted. Analog controller is also designed for a buck converter whose controller parameters are compared with the Discrete PID controller is illustrated.Opisan je diskretni pulsno-širinsko modulirani regulator za silazni upravljač. Osnovni dijelovi su analogno-digitalni pretvornik, kompenzator, a predložen je i diskretni pulsno-širinski modulator kako bi se što bolje upravljalo izlaznim naponom i imao što brži dinamički odziv. Diskretni regulator nadilazi pogreške povezane s prelaskom iz kontinuirane u diskretnu domenu. Simulacijski rezultati su potvrđeni eksperimentom. Projektiranje i analogni regulator za silazni upravljač te je napravljena usporedba s diskretnim PID regulatorom.Key words: Buck ConverterData Acquisition CableDiscrete PID controllerLab VIEWKljučne riječi: silazni pretvaračprikupljanje podatakadiskretni PID regulatorLab VIEW Additional informationNotes on contributorsSubramanian VijayalakshmiS. Vijayalakshmi received AMIE degree in Electronics & Communication Engineering from Institution of Engineers (India), Kolkatta in 1992, Master of Science degree in Information Technology from Bharathidasan University, Tiruchirapalli, and Master of degree in Power Electronics and Drives from Anna University, Chennai in 2007. Her research interests are Discrete controller for DC-DC converter.Thangasamy Sree Renga RajaT. Sree Renga Raja is working as an Assistant Professor in the Department of Electrical and Electronics Engineering, Anna University, BIT Campus, Tiruchirapalli, Tamil Nadu, India. He obtained B.E (Electrical and Electronics Engineering) degree from Manonmaniam Sundaranar University, Tirunelveli in 1998, M. E (Power Systems) from Annamalai University, Chidambaram in 1999 and Ph.D from Anna University, Chenai in 2007. He has published many papers in the field of PowerSystem Engineering. His area of interest includes Power system optimization, Renewable Energy Applications, Energy Conservation Management and Insulation Engineering.