An efficient and novel technique for electronic load controller to compensate the current and voltage harmonics

Asad Ali*, Arshad, Haroon Akhtar, Muftooh Ur Rehman Siddiqi, Muhammad Kamran

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)
10 Downloads (Pure)


This paper presents an efficient technique to switch on and off the dummy loads in an electronic load controller effectively. The electronic load controller is an essential part of pico and micro hydro-power generating units that provides table and high quality electric power to consumers. The magnitude and frequency of the output voltage is kept stable by keeping the power consumption equal to the generated power; this is achieved by turning on and off multiple dummy loads through electronic switches. In the current scenario, the loads are switched on and off at random time intervals that produces a huge noise, harmonics and transients in sinusoidal current and voltage. Random switching of dummy loads looses a significant amount of energy in switching and damages electronic switches along with non-linear loads connected to the system. To tackle this problem, we have investigated different scenarios and reached to the conclusion that, if the zero-crossing technique is deployed for this purpose, the quality of the generated power will be enhanced. The proposed system is simulated in MATLAB/Simulink as well as Proteus. Based on Proteus software model a hardware is made and validated by comparing its frequency graph with results obtained from MATLAB/Simulink model.

Original languageEnglish
Pages (from-to)1042-1057
Number of pages16
JournalEngineering Science and Technology, an International Journal
Issue number5
Early online date23 Dec 2019
Publication statusPublished - Oct 2020


  • micro hydro power plant
  • electronic load controller
  • zero crossing
  • phase locked loop
  • synchronous generator

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Civil and Structural Engineering
  • Biomaterials
  • Mechanical Engineering
  • Hardware and Architecture
  • Fluid Flow and Transfer Processes
  • Computer Networks and Communications
  • Metals and Alloys


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