Abstract
Modern technology developed in renewables has opened a door to utilize micro hydro as one of the major sources of energy in micro-grid in terms of capital investment and sustainability. With such developments, frequency and voltage variation in micro-grid arise as a major concern where conventional control technique fails. This has driven the idea to develop electronic load controller to dump extra power hence minimizing the frequency variations. As the efficiency is reduced using such methods, batteries are applied in micro hydro to store the dumped power. However, to improve both voltage and frequency, combination of ELC and STATCOM are developed. Further, in order to improve the system performance, modifications in ELC corresponding to the load configuration were developed and proved to be beneficial. To improve the efficiency of the system, water heaters, pump loads, or other low wattage apparatus are also used. This paper presents a survey on various frequency and voltage control techniques available in small hydro system with their merits and demerits. The investigations on various problems demand further development.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
