Real-Time Simulator Amplifier

Smart Solution for Signal Amplification in Test Systems with Digital Simulators

Conprove offers an efficient solution for amplifying signals from real-time simulators.
Using the CE-LVA1 (Low Level Analog Adapter), Conprove’s test sets can be used as analog signal amplifiers for simulators such as RTDS®, OPAL-RT®, or Typhoon Hil®.

Real-time digital simulation technology is widely used in power systems through closed-loop testing.

Regardless of whether digital simulation or digital-to-analog model simulation is used, power amplifiers are essential components of the test and simulation system, acting as a bridge between the simulator signal and the devices under test.

CONPROVE’s test cases, when used as amplifiers, were specifically designed for power system simulations, solving the problem of generating simulator signals, which are typically low-level signals.

With a range of different amplifiers that allow parallel connection, the solution can be used for simulations with high levels of short circuits.

CONPROVE’s equipment is versatile and can be installed in a rack or even portable, transporting it in its case for testing in other locations.

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Typical Applications

The CE-LVA1 is used to couple analog signals from real-time simulators to Conprove test equipment, enabling accurate and safe amplification of these signals for:

  • Real-time testing of protection relays
  • Dynamic behavior studies of IEDs (Intelligent Electronic Devices)
  • Performance evaluation in simulated power networks
  • This system is widely used in laboratories, research centers, and academic institutions, and is compatible with models CE-6707, CE-6710, and CE-7012.
Models Comparison Table

Main Technical Features

  • Wide Connectivity: 4.0mm banana-type inputs and front 2EDGK connectors
  • Fixed Amplification Gain:
    • Voltage: 55 V / 1 V
    • Current: 5.667 A / 1 V (CE-6707 / CE-6710) or 8.5 A / 1 V (CE-7012)

Integration Example with RTDS Simulator
In a practical scenario, the CONPROVE equipment receives analog signals from the simulator, amplifies them according to the test set’s gain, and injects them directly into the relay under test. This configuration enables testing with high realism and accuracy.

Benefits of Using CE-LVA1 with Conprove Test Sets

  • Direct integration with real-time digital simulators
  • High fidelity in signal amplification
  • Enhanced safety and control in testing

Ethernet link with an Amplifier Power

A very interesting and useful feature when using real-time simulators with Sampled Values (SV) output is the ability of tests set to act as amplifiers, subscribing to the published SV frames and routing these inputs to their analog outputs, generating proportional current and voltage signals. For this, it is essential that the system is properly time-synchronized, ensuring the correct relationship between angle and frequency.

CONPROVE has implemented this technology natively in its tests set since 2013. In addition to all the functionalities required for testing in accordance with the IEC 61850 standard, the CE-7012, CE-6710, and CE-6707 models offer the ability to subscribe to SV both for protection and power quality measurement applications, in compliance with IEC 61850-9-2LE and IEC 61869-9 standards.

These devices can route the SV inputs to their analog outputs, respecting the generation limits and the number of channels of each model. And they are capable of subscribing to up to two SV streams, performing an important oversampling filter to ensure excellent angle stability in the generated waveform.

Regarding synchronization, CONPROVE’s tests set offer four options for external synchronization: PTP, IRIG-B / 1PPS, internal GNSS, and external GNSS (CE-GNSS accessory). An important distinguishing feature is that, in PTP mode, the tests set can operate either as Master or Slave, allowing them to be synchronized by an external GrandMaster or act themselves as the system’s PTP GrandMaster.

Compatible Products

  • CE-6707 – 4 Voltage Amplifiers + 3 Current Amplifiers
  • CE-6710 – 4 Voltage Amplifiers + 6 Current Amplifiers
  • CE-7012 – 6 Voltage Amplifiers + 6 Current Amplifiers

In conclusion, Conprove’s signal amplification solution is essential technology for ensuring efficiency and results in tests with real-time digital simulators such as RTDS®, OPAL-RT®, and Typhoon Hil®. Using the CE-LVA1 adapter, Conprove test cases play a crucial role in amplifying low-level signals generated by the simulators, allowing them to be adapted to the devices under test, especially in electrical power system simulations.

Furthermore, the flexibility of Conprove amplifiers, which can be used both in parallel and individually, offers a robust solution for simulations involving high levels of short circuits. Furthermore, the equipment, which can be installed in racks or transported portablely, provides a significant advantage in terms of mobility and adaptability to different test environments.

Therefore, Conprove has established itself as a reliable and innovative option for companies and professionals seeking to improve the quality and accuracy of their tests in energy system simulations, ensuring safer and more consistent results for their industrial and research applications.

Tutorial_Teste_CE_LVA1

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