Concept of APFC with reference to the energy efficiency


Vishal Singhal


Increasingly, Indian Industry is paying one of the highest power tariffs in the world. Countries in this club such as Germany and Italy have benefited from Automatic Power Factor control as a competitive edge. They are already global leaders in Automatic Power Factor Compensation (APFC) Capacitors and Panels. This paper is aimed at APFC users and takes a hands-on look at extending the lifetime payback of APFC equipment. The effects of Current, Voltage, Harmonics and Temperature and their interplay are discussed. These produce degradations in Capacitors and Contactors. Subtle problems go unnoticed since the equipment is operating silently in a corner, until a catastrophic breakdown occurs. This paper also discusses practical guidelines for panel designers and users. Peak Inrush Current limiting, forced cooling, Component specifications, component selection and the role of the APFC controller with its protective functions are examined.


How to Cite
Singhal, V. (2014). Concept of APFC with reference to the energy efficiency. Power Research - A Journal of CPRI, 765–768. Retrieved from


  1. Liu yaoping, Smedley K M, “Control of a Dual Boost Power Factor Correction for High Power Applications,” Annual Conference of the IEEE Industrial Electronics Society (IECON'03), pp. 2929-2932, 2003.
  2. Chongming Qiao Keyue M Smedley,“A General Three-phase PFC Controller for Rectifiers With a Parallel-Connected DualBoost Topology,” IEEE Transactions on Power electronics, vol. 17, no.6, pp. 925934, 2002.
  3. Jovanovic, M M , Jang, Y“State-of-the-art, single-phase, active power-factor-correction techniques for high-power applications - an overview,” IEEE Transactions on Industrial Electronics, vol. 52, pp. 701-708, 2005.
  4. Chen Zhe,“Boost APFC device design,” Electrical Technology, vol.1, pp. 45-50, 2010.
  5. W Zhang, G Feng, Y Liu, et “A digital power factor correction (PFC) cont optimized for DSP,” IEEE Transactions on Power Electronics, vol. 19, no. 6, pp. 1474-1485, 2004.
  6. J Toth III and D. J. Velazquez "Benefits of an automated on-line harmonic measurement system", IEEE Trans. Ind. Appl., vol. IA22, no. 5, pp.952 -963 1986.
  7. A Guide to Power Factor Correction for the Plant Engineer, Sprague Electric Company Publisher, 1962.
  8. J Sun, "On the Zero-Crossing Distortion Single-Phase PFC Converters," IEEE Trans. Power Electronics, vol.19, pp. 685 - 692, May 2004.
  9. Muhammad Mansoor Khan, "A Modified Boost Topology to Minimize Distortion in PFC Rectifier," IPEMC 2004, vol. 3, pp. 1248 - 1252, Aug. 2004.
  10. J C Crebier , B Revol and J P Ferrieux "Boost-chopper-derived PFC rectifiers: Interest and reality", IEEE Trans. Ind. Electron., vol. 52, no. 1, pp.36 -45 2005.
  11. M T Zhang , Y Jiang , F C Lee and M M Jovanovic "Single-phase three-level boost power factor correction converter", IEEE App. Power Electron. Conf., pp.434 -439, 1995.
  12. J C Wu, H L Jou, K D Wu and N C Shen, "Power converter-based method for protecting three-phase power capacitor from harmonic destruction", IEEE Trans. Power Delivery, vol. 19, pp. 1434-1441, Jul. 2004.
  13. D M Vilathgamuwa and H M Wijekoon, S S Choi, "Investigation of resonance phenomena in a DVR protecting a load with PF correction capacitor", The Fifth International Conference on Power Electronics and Drive Systems, pp, 811815, 2003.
  14. D Detjen, J Jacobs, R W De Doncker, H O Mall, "A new hybrid filter to dampen resonances and compensate harmonic currents in industrial power systems with power factor correction equipment", IEEE Trans. Power Electron., vol. 16, pp. 821827, Nov. 2001.
  15. H Akagi, "Instantaneous reactive power compensators comprising switching devices without energy storage components", IEEE Trans. Ind. Applicat., vol. IA-20, 1984.
  16. F Z Peng, G W Ott, and D J Adams, "Harmonic and reactive power compensation based on generalized instantaneous reactive power theory for three-phase four-wire systems", IEEE Trans. Power Electron., vol. 13, pp.1174 -1181, 1998.
  17. J Jacobs, D Detjen, and R W De Doncker, "Rapid prototyping tools for powerelectronic systems Demonstration with shunt active power filters", Proc. IEEE Int. Conf. Ind. Electron., Contr. Instrum., 2000.