IEC 61850 Standard for critical funtions
          

     Over the past five year, my research interest  have focused on improving and optimization of IED-based control and protection schemes for electric substations. I am particularly interested in the use of IEC 61850 Standard, and associate communication links as a reliable network for critical funtions, such as trip or interlocking signals. My work is around the main grid of Colombian  electric transmission network, where the design engineers had been very cautious and distrustful about the advantage of communication facilities of protective relays and control IED's. Traditionally communication protocols, as IEC 61850, had been accepted  only for non critical functions (remote control, state supervision, and alarms). However, trip and interlocking signals, which manage the principal system safety,  are designed with the old technology based on cooper wired circuit, under the moot pretext to be a proved technology. These approachs belong to past. Concepts relative to modern methods to manage functions in substation through IEC 61850 (e.g. process bus and sampled values) must be in the  next generation of substations. As adhering  to this stream at this point in my career, my primary interest in the inmediate future is to structure a coherent plan for use IEC 61850 Standard for critical functions in substation's control and protection schemes.