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Author: gerinlajoie.luc
Type: Model
Downloaded: 217 times
Date: 2012-06-18

Sequence controlled voltage and current sources.

Description:
Three sequences voltage and current sources are proposed, the positive, negative and zero sequences. The magnitude and the angle are controllable; the carrier is given by the user.

Theses p... see morearts could by used for artificial power swing or unbalances voltages.

Tag(s): Source

Author: AdminEMTP-RV
Type: Model
Downloaded: 183 times
Date: 2012-06-18

SVC_Simple

Description:
This is a simple SVC model with a TCR branch and fixed capacitors.

This case is taken from the book of T.E. Miller entitled 'Reactive Power Control in Electric System.

Tag(s): Power Electronics

Author: AdminEMTP-RV
Type: Model
Downloaded: 193 times
Date: 2012-06-18

TCR1

Description:
Example of single phase Thyristor Controlled reactor using TACS control devices. This circuit reproduces the TCR case presented in the EMTP Workbook volume 4 chapter 6.

Example of single ph... see morease Thyristor Controlled reactor using TACS control devices. This circuit reproduces the TCR case presented in the EMTP Workbook volume 4 chapter 6.

The basic static Var system consists of a static switch in series with an inductor. This is normally called a phase controlled reactor, or Thyristor Controlled Reactor (TCR). The TCR is in parallel with a fixed capacitor. Together they interface with the power system at some interconnection point. The control circuit of the TCR can be divided into three parts. There is the gate pulse generator (GPG), the heart of the control system, a voltage regulator and an interface to the power systems which could be simply a RMS voltage meter.

The purpose of the gate pulse generator is to provide firing pulses to the thyristors. The regulator calculates the conduction angle, ?, which is passed to the gate pulse generator as a control signal. It is the function of the gate pulse generator to generate the correct firing pulses to achieve the requested conduction angle, ?. In this example the gate pulse generator is modeled using TACS control devices.

Tag(s): Power Electronics