What is a Simulink model?

Simulink is a MATLAB-based graphical programming environment for modeling, simulating and analyzing multidomain dynamical systems. Its primary interface is a graphical block diagramming tool and a customizable set of block libraries.

What is distance relay?

A distance relay is a type of protection relay most often used for transmission line protection. Distance relays measure the impedance from the installation side to the fault location and operates in response to changes in the ratio of measured current and voltage.

What is relay in Simulink?

Description. The Relay block allows its output to switch between two specified values. When the relay is on, it remains on until the input drops below the value of the Switch off point parameter. When the relay is off, it remains off until the input exceeds the value of the Switch on point parameter.

What is Simulink diagram?

Simulink® is a graphical modeling and simulation environment for dynamic systems. You can create block diagrams, where blocks represent parts of a system. A block can represent a physical component, a small system, or a function. An input/output relationship fully characterizes a block.

What is used of Simulink library model?

A block library is a collection of blocks that you can use in a Simulink® model. You can create instances of blocks from built-in Simulink libraries, and you can make custom libraries for instances of blocks that you create. You can access the built-in libraries from the Simulink Library Browser.

What do you use Simulink for?

Simulink, an add-on product to MATLAB, provides an interactive, graphical environment for modeling, simulating, and analyzing of dynamic systems. It enables rapid construction of virtual prototypes to explore design concepts at any level of detail with minimal effort.

What is 3 zone distance relay?

Three-zone step distance relaying to protect 100\% of a line and backup the neighboring line. Three-zone step distance relaying to protect 100\% of a line and backup the neighboring line. For ground distance relays, the faulted phase voltage, and a compensated faulted phase current must be used.

What are the characteristics of distance relay?

Contents:

• Amplitude and phase comparison.
• Plain impedance characteristic.
• Self-polarised Mho relay.
• Offset Mho/Lenticular characteristics.
• Fully Cross-Polarised Mho characteristic.
• Partially Cross-Polarised Mho characteristic.
• Quadrilateral characteristic.
• Protection against power swings.

What is hysteresis in Simulink?

The hysteresis acts to prevent rapid spurious switching when the control signal is noisy. The switch has two distinct operating modes, shown in the diagram. If the external physical signal at the control port is greater than the upper threshold, then the switch is closed.

How do I create a model in Simulink?

Use the Simulink Editor to build your models.

1. Start MATLAB®. From the MATLAB toolstrip, click the Simulink button .
2. Click the Blank Model template. The Simulink Editor opens.
3. From the Simulation tab, select Save > Save as. In the File name text box, enter a name for your model. For example, simple_model . Click Save.

What is Simulink library?

How does Simulink solve differential equations?

Build the Model

1. Add a Math Function block and connect the input to signal B . Set the Function parameter to square .
2. Connect the output from the Math Function block to a Gain block. Set the Gain parameter to 3e7 .
3. Continue to add the remaining differential equation terms to your model.