Simulation of Frequency Filter
In a previously published article, an option was presented to calculate the frequency of an electrical signal from a transition through zero. This article provides an example implementation of a frequency filter.
Simulink
Simulink, simulation of relay protection in Simulink, real-time simulation.
Automatically launch Simulink from Matlab
Using modern software tools, such as Matlab / Simulink, can significantly simplify the analysis of various complex systems. Matlab scripts allow you to automatically run Simulink schemes with changing various parameters.
Simulation of Differential Relay
A differential relay is used in the implementation of the basic protections of various equipment: generators, transformers, power lines, etc. The use of a relay with a braking characteristic prevents the non-selective action of the protection.
Simulation of Power Direction Relay
The power direction relay is used in the implementation of directional protections, which allow for operation only with a certain power direction in a certain network operation mode.
Simulation of Inverse Time Delay
Inverse time delays are used to implement protections, the response time of which depends on the value of the input quantity. The use of inverse time delays can reduce the trip time of close short circuits with high currents, while ensuring selectivity of protection.