BERTA Test Bench

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BERTA Test Bench

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OPAL-RT’s BERTA test bench is a safe, reliable and portable test bench for speed governors, turbines, voltage regulators (AVR) and power system stabilizers (PSS). Equipped with a high-performance real-time simulator programmed with world-renowned RT-LAB software, the BERTA Test bench enables users to easily and comprehensively test real generating units in the power plant, synchronized and transmitting power to the main grid and/or on real controllers connected to a virtual generating unit in laboratory.

 

Models and modeling parameters used in stability analyses are often theoretical approximations based on typical models and values. By relying on concrete data obtained through both open and closed loop tests, OPAL-RT’s BERTA makes it possible to accurately estimate and validate regulator, turbine and exciter system models. In addition, closed loop tests, which emulate islanded grid operation, can verify that the alternator under test contributes to the interconnected grid frequency stability. Using the closed-loop feature, OPAL-RT’s BERTA solution lets users build and validate an accurate dynamic simulation of an alternator in an islanded grid in a fraction of the time required for traditional methods.


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Product Overview

Graph_Berta_V3_EN

 

 

BERTA functionalities:

  • Ensuring the tested unit's stability in an islanded power system, regardless of operating mode
  • ​​​​​​​Correctly setting AVR and PSS for damping natural electric power oscillations
  • ​​​​​​​Ensuring no interference between the speed governor and PSS, while continuing to contribute to the main grid stability
  • ​​​​​​​Certifying that the speed governor, AVR and PSS fulfill technical requirements

 

BERTA provides:

  • Closed loop tests often reveal non-linear behaviors that were not anticipated through off-line simulations based on non-validated models;

  • Dynamic models are quickly available and validated on premises using real-time comparison with physical instruments;

  • Non-linear model parameter estimation.

Datasheets

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