Services

Mathematical Modeling for Electromechanical or Electromagnetic Stability Studies

In power system planning and expansion studies, appropriate mathematical models are required for the controllers (excitation systems, digital governors, joint control, PPC, inverters, etc.) and generating units (generators, turbines, PV panels, wind turbines, etc.), as well as transmission elements (transformers, reactors, synchronous condensers, etc.).

These mathematical models, typically provided by the manufacturers of each component, require validation with field tests to confirm that the model adequately represents the physical system.

In the field, a signal acquisition system is installed, and tests are performed on step response, voltage variations, power, frequency, load rejection, and other variables. Subsequently, in the office, the signals acquired in the field are compared with those generated by the simulated model.

Error factors between the simulated signal and the field signal can be applied to improve adherence to the mathematical model.

REIVAX has over 38 years of experience in machine and controller modeling. Block diagrams can be delivered in different data files, depending on the tool used:

– DIGSILENT POWER FACTORY

– SIEMENS PSS-E

– EMTP

– ATP

– PSCAD

– CEPEL ANATEM

– REIVAX SEC

– MATHWORKS MATLAB SIMULINK

Commissioning and Technical Consulting

REIVAX’s extensive experience allows its professionals to perform commissioning, controller tuning, and even maintenance.

We provide services for both new and legacy REIVAX equipment. Contact us for controllers from other manufacturers.

Power plant modernization processes may require technical support in the electrical and mechanical areas, including the specification of new equipment, instrument replacement, and equipment and cable testing.

Power plant digitalization processes present significant challenges, both in technical aspects related to equipment specification and in optimizing human resources.

REIVAX has a highly qualified team to work both in the factory and in the field. We have over 38 years of experience in the development, design, manufacturing, and commissioning of control and automation systems.

Electromechanical Stability Studies and Electromagnetic Studies

New control systems require testing with simulation tools prior to field installation. Excitation systems and digital governors require electromechanical stability studies. Solar inverters, wind turbines, and other fast-switching equipment require electromagnetic studies.

Control loop tuning can be simulated prior to commissioning new equipment, both in modernizations (retrofits) and in new power plants, to assess whether they meet grid requirements (Grid Codes).

REIVAX has over 38 years of experience in machine and controller modeling. Block diagrams may be delivered in different data files, depending on the tool used:

– DIGSILENT POWER FACTORY

– SIEMENS PSS-E

– EMTP

– ATP

– PSCAD

– CEPEL ANATEM

– REIVAX SEC

– MATHWORKS MATLAB SIMULINK

Training & Professional Development

REIVAX’s extensive experience in the development, design, manufacturing, and commissioning of control and automation systems empowers the company’s professionals to deliver high-level technical training.

During REIVAX training, various stakeholders in the electrical sector, involved in design, construction, operation, maintenance, and other areas, will receive theoretical and practical information, optimizing the resources allocated to the project and enhancing the professional development of the company.

Courses offered in person at the client’s headquarters, in person at REIVAX, or remotely (online) allow clients to receive training in the most convenient way.

Complete courses or even mini-courses (Technical Seminars) allow for the discussion of relevant topics about new power plants or retrofit projects.

Different customers in different countries have already hosted REIVAX Technical Seminars, discussing topics of interest.