Enhancing the distribution networks stability using distributed generation

Abstract:

Purpose - This paper describes models of micro-turbines and fuel cells, which can be used in stability studies. Design/methodology/approach - The plants models derived are based on the main equations. These models are developed in the Laplace domain and transient simulation is done using a software developed based on the MATLAB package. Findings - The micro-source is capable of providing effective load-following service in the distribution system. However, the results also show that the micro-source is not an uninterruptible power supply and does not protect the load from voltage instability while in grid-connect mode. When a micro-turbine plant is connected to a point where it gives support to a load in fault conditions, the lower the inertia of micro-turbine plant, the greater is the destabilizing tendency for faults in the distribution system. On the other hand, transient stability is enhanced with aid of the SOFC inverter. Originality/value - The effects of these micro-sources on the network performance are shown and a distribution system embedded with the micro-sources is used as an example. Finally, transient stability and voltage stability of the system are investigated. © Emerald Group Publishing Limited.

Año de publicación:

2005

Keywords:

• electric power generation
• Gas generating systems
• Solid fuels

Fuente:

scopus