Abstract:
The purpose of this research was to review the current utility operating methods and
associated technical issues, basically on frequency stability in Sri Lanka when
considering embedded generation connected to distribution network, and to examine the
prospects for future active operation and control of the network.
A comprehensive software based study was done which allowed identifying some
prospective modifications for a more active approach to the operation of the power
system to accommodate the expected amount of embedded generation that is likely to be
connected in the coming decade in order to meet the government targets.
Different loading conditions based on the load curve was assed and technical issues on
protection, basically Rate of Change of Frequency (ROCOF) protection and load
shedding were covered in detail, and a new load shedding scheme was proposed.
Guidelines were suggested to the future modifications and control of the network. These
will allow the embedded generation developers and the Ceylon Electricity Board (CEB)
to maximize the potential of embedded generation and improve the utilization of their
network.
