Controlled Voltage and Current Sources

SEE ALSO: Current & Voltage Sources

Introduction

The controlled voltage and current sources represent a single or three-phase A.C. source with a series or parallel RLC impedance. In the network, these sources only generate the signal received on the control connectors. Hence, this process serves only to amplify or inject a signal in the network.

Controlled Sources Icons and Diagrams
The following icons and diagram are used to represent controlled sources.

Properties

Single or three phase AC sources with series or parallel RLC impedance

Main Features

Amplify or inject a signal in the network from control block world

Implementation

• Voltage sources have series impedance only that can be series of parallel RLC elements. Same for current sources.
• Voltage sources always reference to the ground. Current sources inject current between buses without grounding.

Sources Implementation
The voltage and current sources are implemented in the network as follows:

The voltage source always has a series impedance. However, this impedance can be a collection of series or parallel RLC elements. The same applies to the current source, always having a parallel RLC impedance, parallel or series type. The voltage source has only one network connector, since is always referenced to the ground. The current source injects a current from one bus to another, without grounding. The single or three-phase signal applied to the control connectors as input will be the signal sent to the network, single or three-phased.

Parameter Description

Figures 4 - 19 and 4 - 20, respectively, show the control panels for voltage and current sources.

General Parameters

• RLC connection = Series (series R, L, C) or parallel (parallel R, L, C).
• R: Resistance value in ohms for each phase.
• L: Inductance value in henry for each phase.
• C: Capacitor value in farad for each phase.

Control Connector for Controlled Source

• V input (voltage source): The voltage amplitude signal.
• I input (current source): The current amplitude signal.
• I output (voltage source): The current signal flowing from the source.

List of Available Signals
At acquisition, the following signals are made available by the sensors:
• I(a, b, c)_label: Current signal (current source) or measured current (voltage source) (A).
• V(a, b, c)_label: Source voltage (V). Voltage source only.