Comparison of the Performance of a PWM and a Binary Weighted Load Induction Generator Controller

In Uganda only 18.2% of the population has access to electricity. Pico and micro hydro systems could be used to implement off grid energy generating systems to increase energy access. One of the key challenges is the high cost of electromechanical systems. The renewable energy business incubator in partnership with the Dept. of Electrical and Computer Engineering Makerere University pioneered three projects to develop electronic load controllers and induction generator controllers for pico and micro power schemes. The controllers developed would be used to reduce the costs of implementing off grid power schemes. Load controllers are used to control power quality without the need of a costly mechanical governor. The controllers developed were able to control the voltage and frequency of the alternators and motor generators. Total voltage harmonic distortion of 3% and 2.6% are exhibited by the PWM and Binary Induction generator controller.