Adaptative rigity system in industrial facilities with distributed generation

Abstract

A lot of industrial facilities with Cogeneration Heat and Power 
(CHP) exists working electrically as Distributed Generation 
(DG). In these utilities the cogeneration unit operate in 
paralell with network, but several times due to electrical 
disturbances, islanding operation mode is chosen. This mode 
is activated when disturbances appeared or are expected to 
appear in the network. During islanding mode both facilities 
and receivers are affected by the low electrical stability of 
the own generation. Stability disturbances are mainly referred 
both frecuency and voltaje stability. Disturbances also appears 
in the moment of the reconnection from islanding to normal 
operation mode. In order to avoid these inconvenients between 
rigid network connection and islanding operation mode an 
alternative solution is approached in this document, is the 
so-called Adaptative Rigid System (ARS). Through this system 
we can electrically move far away enough from network to 
disturbances do not affect the operation of our Plant. On the 
other hand we can keep the electrical stability provided by the
external network. To conclude we will describe the advantages 
on this (ARS) system against normal operation modes.