POWER ELECTRONICS

The group's research focuses on improving the efficiency of power supplies and finding solutions to power quality issues.

Power Electronics Group

The Power Electronics Group at the University of Waikato is led by Nihal Kularatna who came to the University of Waikato in 2006. The group's research focuses on improving the efficiency of power supplies and finding solutions to power quality issues.

The group's work has three main areas of focus:

  • Supercapacitor assisted low drop out (SCALDO) techniques - A technique to improve the end to end efficiency of linear DC-DC converters, particularly the high current version suitable for voltage regulator module type applications.
  • Supercapacitor assisted surge absorption (SCASA) techniques - This work is based on a new technique suitable for surge absorption, making use of the continuous energy absorption capability of super capacitors.
  • Surge resistant un-interruptible power supply systems (SRUPS) based on supercapacitor energy storage - This technique is aimed at better UPS systems with surge absorption capability. The group are developing initial prototypes to prove the concept of SCs buffering the surges and the technique is applicable to off-the line UPS systems.

CONTACT

  • Mr Nihal Kularatna
  • Senior Lecturer - Engineering
  • nihal@waikato.ac.nz

LINKS