https://orcid.org/0000-0003-1569-0537
![Sample our Engineering & Technology journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5933/TOC-Subject-Sample-2021-Engineering-Tech.jpg"})
Abstract
This research work focuses on the design and analysis of the single-stage reduced order sliding mode control (ROSMC)-based Z-source inverter (ZSI) using sinusoidal pulse width modulation (SPWM) technique for improving the output power quality. To enhance the ZSI output voltage, the shoot-through (ST) mode is executed. Reduced 2nd order model of ZSI is derived from original 6th order model using moment matching method to reduce the sensor requirements and complexity in controller design. The closed loop control is accomplished using cascade control technique to investigate the system’s dynamic response. A Genetic Algorithm (GA)-tuned Proportional Integral (PI) controller is used for the outer voltage control. GA-tuned PI/ROSMC-based SPWM control technique has been attempted for inner current control. Sinusoidal reference signal is generated by the inner current control loop. Internal Model Control (IMC)-tuned Proportional Integral derivative (PID) controller is used to minimise the effect of Right Half-Plane zero, and it also produces required shoot-through duty ratio (STDR). Simulation results illustrate that the ROSMC-based SPWM technique provides superior performance than GA-tuned PI-based SPWM control technique. An experimental prototype model of 2 kW ZSI, ROSMC-based SPWM control is implemented using SPARTAN-6 field programmable gate array. The simulation results are substantiated with the hardware results.
Additional information
Notes on contributors
A. Sangari
A Sangari, assistant professor, Department of Electrical and Electronics Engineering, Rajalakshmi Engineering College has obtained UG degree from Sri Venkateswara College of Engineering, Sriperumbudur, Chennai, PG from Rajalakshmi Engineering College, Anna University, Chennai, and PhD in the area of power electronics, Velammal Engineering College, Anna University, Chennai. Her research area includes multilevel inverter, Z-source inverter, and renewable energy-based power electronic system. She has published 5 research papers in refereed journals and has presented 5 international conferences and four national conferences.
M.G. Umamaheswari
M G Umamaheswari, professor, Department of Electrical and Electronics Engineering, Rajalakshmi Engineering College obtained her UG in instrumentation and control engineering from Government College of Technology, Coimbatore and PG in electrical drives and embedded control and PhD in the area of power quality from College of Engineering, Anna University, Chennai. She has presented more than 35 papers in national and international conferences. She has published papers with high impact factor international journals such as IEEE, IET, and Elsevier. Her research area of interest includes power quality enhancement using power converters, application of linear and nonlinear controllers to renewable power fed converters. Email: [email protected]
B. Lekshmi Sree
B Lekshmi Sree, received BE in electrical and electronics engineering from CSI Institute of Technology, Thovalai, India, ME in power electronics and drives from Rajalakshmi Engineering College, Chennai, India, and PhD in the area of renewable energy-fed power electronics from Rajalakshmi Engineering College, Anna University, Chennai. She is currently working as an associate professor in Narsimha Reddy Engineering College, Hyderabad, India. She has published 8 research papers in refereed journals and conferences. Her research interests are optimization techniques, robust control techniques, and renewable energy-fed power converters. Email: [email protected]