Description

This document explains how to add Triphase driver interface and instantiate a communication interface to control a Triphase power amplifier. The communication interface can also be used to control a power amplifier simulation running in a Triphase Real-Time Target.

The physical link between the Opal-RT simulator and the Triphase power amplifier is an optical fiber. Each endpoint must have a PCIe card optical fiber card designed by Triphase and the two optical fiber cables must be connected between the endpoints (one from input to output of the second endpoint, and the second one must be the other way around).

The Triphase driver interface is responsible for loading the appropriate kernel module (fc0_pcie) and initialize the optical fiber card. Then, through the simulation, the user can control the amplitude of three different harmonics of the power amplifier, or the Real-Time target running a power amplifier simulation. It can also change the compensation and operation frequency. The following schema shows how the connection is made on a typical system where the Real-Time target is used as a power amplifier.

Triphase Diagram

Driver Configuration

The Triphase driver interface does not require any configuration parameters. At each calculation step, the control data transmitted from the simulator to the amplifier and the monitoring data are transmitted from the amplifier to the Opal-RT simulator.

As triphase driver interface does not require any configurations, the I/O interface of the driver will appear as below without any configuration edit section.

Triphase Driver Configuration

Connections

Triphase I/O interface provides a means to make connections between model and driver. The user will have to connect points in the model to points in the driver by using the designated RT-LAB GUI. This connection panel will show all the driver's and model's connectable points, once the model has been compiled.

Connectable Name	Description	Direction
Data	A vector of 12 data points from Triphase power amplifier.	To model
Write Index	Write Index point for writing data from Triphase power amplifier.	To model
Read Index	Read Index point for reading data from Triphase power amplifier.	To model
Parameter	Single point for parameters such as Amplitude, Theta and harmonic which are controlled by Triphase phase amplifier.	To model
State	Single point for the state of the parameter controlled by Triphase phase amplifier.	To model
New Frame	Single point for New Frame controlled by Triphase phase amplifier.	To model
Data	A vector of 12 data points to Triphase power amplifier.	From model
Write Index	Write Index point for writing data reported to Triphase power amplifier.	From model
Read Index	Read Index point for reading data from the model reported to Triphase power amplifier.	From model
Parameter	Single point for parameters such as Amplitude, Theta and harmonic which are reported to Triphase phase amplifier.	From model
State	Single point for State of parameter reported to Triphase phase amplifier.	From model

The example model provided with RT-LAB is already packaged with connections between the driver and the model. It can be used to understand how the connections between the model and the driver should be done.

Limitations

The current version of the Triphase power amplifier communication interface has the following limitations:

Kernel version: only supported on 6.29.6-opalrt-6.1 kernel
XHP model: supported