Library for relay protection simulation in Simulink
The article provides a library for modeling relay protection in a Simulink environment.
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Relay protection
Simulation of relay protection in Matlab / Simulink, description of relay protection and automation algorithms, relay protection in simple words.
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.
Simulation of Voltage Controlled Overcurrent Protection
Overcurrent protection – protection used on almost all types of electrical equipment. This protection responds to an increase in the current flowing on the protected equipment.
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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.