Enhancing the distribution system stability using micro-turbines and fuel cells

Introducing high concentrations of distributed power generation units into existing electrical networks can compromise the dynamic behavior of the distribution system as a whole. The two candidate technologies for distributed generation that are arousing the most excitement right now are fuel cells and micro-turbines. What has made the concept of distributed power especially attractive is, of course, all the innovative electronics that has lowered the cost of protective relaying, improved remote control, and simplified interfaces between generating resources and the grid. This paper describes models of micro-turbines and fuel cells, which can be used in stability studies. Examinations include transient stability and voltage stability of the system.