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Author: gerinlajoie.luc
Type: Model
Downloaded: 205 times
Date: 2012-11-23

Ideal SVC

Description:
This component is an ideal SVC (controlled admittance) instead TRC and TSC. The controlled reactance are design with controlled an inductance and capacitance on each phases.
Vref is calculated wi... see moreth U_ic, the slope and Q_ic.

Tag(s): Components

Author: gerinlajoie.luc
Type: Model
Downloaded: 196 times
Date: 2012-11-23

Random control generators

Description:
Four control sources are included:
Baseline Wander
Normal distribution
Uniform distribution
Lorenz Chaos

Tag(s): Components

Author: AdminEMTP-RV
Type:
Downloaded: 220 times
Date: 2012-06-18

PM_subcircuit

Description:
Example of a user defined model. In this case a line-start permanent magnet synchronous machine is connected to a simple power network. This machine, working as a generator, has been modeled by contro... see morel elements. This user defined model is not recomme.

The line-start permanent magnet motor is a high-efficiency synchronous motor with self starting capability when operating from a fixed frequency voltage source. The permanent magnets embedded in its rotor provide the synchronous excitation and the rotor cage provides the induction motor torque for starting. The difference in permeability between the magnet and rotor core also results in significant magnetic saliency and reluctance torque at synchronous speed. At asynchronous speeds, the dc excitation and saliency of the permanent magnets will cause pulsating torque components. When the field strength of the magnet is too strong, a line-start permanent magnet motor may fail to synchronize because of the excessive pulsating torque component from the dc-excitation of the magnet.

The objective of this case is to create a user defined model of a permanent magnet synchronous machine. With this model the user can explore the behaviour of the torque components during a starting run of the generator from standstill. In particular, we will examine the ability of the motor to synchronize with various values of magnet field strength, mechanical loading and rotor inertia.

This case also shows the capabilities of EMTP-RV to create user defined models. This model assembled with control elements is particularly clear. I needed 4 hours to create this model and to validate it with an existing Simulink model ! The user can see the whole model with its equations on one page (see Figure below)

This model is given as an example of user defined model and should not be used for other purposes.

Tag(s): Example, Motor

Author: AdminEMTP-RV
Type: Model
Downloaded: 141 times
Date: 2012-06-18

Protection_Homopolaire_Evol

Description:
This case introduces a typical zero sequence relay tested in a MV network.

This is a contribution of Marc Petit from Supelec in France.

See the comments in the file.

Tag(s): Protection, Components

Author: AdminEMTP-RV
Type: Model
Downloaded: 188 times
Date: 2012-06-18

V_unb_I2motor

Description:
This design introduces an unbalance three-phase voltage source defined by specified symetrical components. The source is initialized and an angle is defined.
This design should be used with versi... see moreon 1.0.2

This source is used to estimate the I2/I1 ratio of a large induction motor.

Tag(s): Example