Steady State Simulation of Power Systems with Change in Topology

In power system protection, the need to know the load
current together with the fault level detected by a relay is important.
This is due to the fact that the relay is required to isolate the
equipment being protected if a fault is present and keep the breaker
associated with it closed if the current level is lower than the
maximum load level. This is not an issue for a radial system. This is
not the same however in a looped power system. In a looped power
system, the isolation of an equipment system will contribute to a
topology change. The change in the power system topology will then
influence or change the maximum load current and the fault level
detected by each relay. In this paper, a method of data collection for
changing topology using matlab and sim-power will be presented.
The method will take into consideration the change in topology and
collect data for each possible topology.

• Aidil Azwin Zainul Abidin
• Farrukh Hafiz Nagi
• Agileswari K. Ramasamy
• Izham Zainal Abidin

• Topology Change
• Power System Protection
• Power System simulation
• Matlab
• Sim-power.

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