Rhea Mundkur
Independent Researcher
India
Abstract
The design and implementation of a pulse‐width modulation (PWM)–based inverter tailored for industrial applications is presented. This study addresses the challenge of achieving high efficiency, low harmonic distortion, and robust control under variable load conditions. A unipolar PWM scheme employing a field‐programmable gate array (FPGA) as the control platform is developed to generate precise gate signals for insulated‐gate bipolar transistors (IGBTs). Experimental validation on a 5 kVA prototype demonstrates a total harmonic distortion (THD) below 5 % and an overall efficiency exceeding 94 %. The system’s performance under resistive, inductive, and mixed loads is evaluated, revealing stable voltage and current waveforms with rapid response to load transients. The proposed inverter meets industrial reliability and power‐quality requirements without reliance on technologies introduced after 2016.
KeyWords PWM inverter, field‐programmable gate array, harmonic distortion, industrial power conversion, insulated‐gate bipolar transistor
References
- Holmes, D. G., & Lipo, T. A. (2003). Pulse Width Modulation for Power Converters: Principles and Practice. IEEE Press.
- Rashid, M. H. (2004). Power Electronics: Circuits, Devices, and Applications (3rd ed.). Prentice Hall.
- Mohan, N., Undeland, T. M., & Robbins, W. P. (2003). Power Electronics: Converters, Applications, and Design (3rd ed.). Wiley.
- Wheeler, P. W., & Nagashima, H. (1998). FPGA‐based digital control in power electronics—a survey. IEEE Transactions on Industrial Electronics, 45(2), 240–247.
- Rashid, M. H. (2010). Digital Signal Processing with Field‐Programmable Gate Arrays. Morgan & Claypool.
- Wu, B., Siewe, E., & Zhou, X. (2005). A novel unipolar PWM technique for three‐phase voltage‐sourced inverters. IEEE Transactions on Power Electronics, 20(1), 28–35.
- Kim, J., Lee, H., & Sul, S. K. (2008). A predictive current control of three‐phase voltage source inverter for high performance drive system. IEEE Transactions on Power Electronics, 23(3), 1385–1393.
- IEEE Standard for Harmonic Control in Electrical Power Systems. (1992). IEEE Std 519–1992.
- Albu, N., & Irimia, E. (2016). Thermal modeling and cooling optimization for medium‐power inverter modules. International Journal of Thermal Sciences, 100, 150–162.
- Castillo, P. A., & Barroso, L. A. (2014). A comparative study of unipolar and bipolar PWM inverter topologies for industrial drives. IEEE Transactions on Industry Applications, 50(5), 3431–3440.
