omegaVENTUS-Kunden profitieren auch bei ihren internationalen Projektvorhaben von unseren Lösungen gemäß Anforderungen in internationalen Netzanschlussregeln und gleichzeitig Optimierung von relevanten elektrischen Komponenten

Our experts are continually aligned with the TSO’s, DNO’s and certification bodies ensuring state-of the art specifications based on worldwide actual valid requirements for renewable power plants and generating units.

• Requirements for Power Plants: analysis and interpretations aligned and agreed directly with the TSO of on- and off-shore applications in the European, American and Asian markets
• Requirements for Generating Units: analysis and interpretations aligned and agreed directly with the TSO or DNO of on- and off-shore applications in the European, American and Asian markets.
• Specifications for Power Plants: measurements-, modelling- and simulation plans and definitions, based on project dedicated standards
• Specifications for Generating Units: measurement-, modelling- and simulation plans and definitions, based on project dedicated standards
• Other Requirements/Specifications: dedicated to the compliance of prototype activities, project specific solutions, considering the optimal integration of the generating unit within the power plant connected to the grid

Electrical measurement and supervision activities implies all engineering measurements activities, including Development Accompanying Assessment (DAA) to ensure the compliance of the electrical behavior according to the design requirements of the costumers and to the respective grid codes, ensuring the conformity to all relevant standards up to the certification guidelines worldwide.

Validation of single components and the whole electrical system
Includes measurement campaigns and validation of single components up to the whole system of the power generating units and power plants.

Grid code compliance and specific project requirements toward relevant standards
Includes the grid code compliance of the power generating units and power plants. The main groups of the electrical measurements related to the grid code compliance are listed in the table below

Our services are focused (but not limited) through the following activities:

• • • Specification of the scenarios in a measurement plane, including success criteria’s
    • On-site measurements and/or assessment of measurements
    • Verification of the compliance to the success criteria’s
    • Elaborating of optimal solutions by interactions with the public grid on the grid connection points
    • Data analysis and final measurement reports in compliance to the relevant standards

The model of the generating unit which is required to be used in simulations must reflect the measured electrical characteristics with sufficient accuracy given in different standards.

• • • Dynamic models: Developing of Root-Mean-Square models, the so called RMS Model
    • Quasi-steady-state models: Simplified model to determine the reactive power supplied in the normal operating mode. Depending on the complexities of the WTG system, this model can be included in the RMS model above
    • Electro-Magnetic-Transient model: Developing of the EMT Model
    • Harmonic model: Developing of equivalent Thevenin and Norton harmonic model
    • Building of Software interfaces: co-simulation studies with models or model blocks in different software using dll’s (e.g. MATLAB/Simulink, DigSilent/Power Factory, PSCAD and GH Bladed)
    • Validation of the models according to the modelling standards and the grid code:
    • • 1. 1. • Short circuit current capability of electrical devices within the wind farm
              • Reactive power exchange and voltage stability
              • Voltage- and current harmonic impact
              • Low- and High Voltage Ride Through behavior – grid support during failures
              • Primary Control – active power reaction during frequency deviations

Below a simple illustration of model boundaries and validity in the unit level is shown, using an example of a wind turbine generating unit as full converter concept (WTG Type 4b).

For the investigation of the grid code compliance, simulation studies will be performed in wind turbine and wind farm level regarding:

• • • Steady-State simulations
    • Short-circuit calculations and simulations
    • Frequency response calculations
    • Short circuit & protection calculations and simulations
    • EMT Simulations
    • Harmonics simulation and investigation

Our experts are continually aligned with the TSO’s, DNO’s and certification bodies in order to ensure that the investigation scopes covers all relevant requirements stated in the actual versions of the grid codes. The main groups of the required simulation studies are listed in the table 2 below, depending on the grid code applying to the project the supplier can chose the investigation of all topics or a part of the list as stated (but not limited) in the table 2 below.

The kind of scope of services rendered by neveling.net GmbH are based on the relevant agreements concluded, subject to the Rules applicable at the time of survey or inspection, unless otherwise provided by separate express agreements. It is the client obligation to ensure that the services of neveling.net GmbH can be rendered smoothly, be granted unrestricted access and the right of inspection. Any information, drawing, etc. required for performance of the functions and activities of neveling.net GmbH must be made available in due time. Before neveling.net GmbH starts work, the client shall inform neveling.net GmbH about relevant safety issues and take all necessary safety-related measures to ensure a safe work for neveling.net GmbH and shall comply with all legal and other safety relevant regulations.est Lorem ipsum dolor sit amet.

a. Developing of Root-Mean-Square models: RMS Model
b. Developing of Electro-Magnetic-Transient models: EMT Model
c. Developing of Harmonic model: Thevenin and/or Norton model harmonic equivalent
d. Building of Software interfaces: co-simulation studies with models or model blocks in different software using dll’s (e.g. MATLAB/Simulink, DigSilent/Power Factory, PSCAD and GH Bladed)
e. Validation of the models according to the modelling standards and grid codes:

• • • Short circuit current capability of electrical devices within the wind farm
    • Reactive power exchange and voltage stability
    • Voltage- and current harmonic impact
    • Low- and High Voltage Ride Through behavior – grid support during failures
    • Primary Control – active power reaction during frequency deviations

Our certification experts supports your projects through the whole certification process of the electrical behavior of the wind turbines, wind farms and other generating units. The activities are focused (but not limited) on the type certificate for design requirements, unit- and planed certificate for electrical behavior, as well as other costumer needed statement of compliance to be issued from certification body’s.

The scope in this process includes the following main tasks which we are covering:

• • • Clarification of the requirements with the certification body
    • Clarification of requirements with the DNO or TSO
    • Specification of the documents to be supplied to the certification body
    • Executing of calculation or simulations needed for the certification
    • Creation of Reports and other documents needed for the certification
    • On-Site support for verification of the conformity to the certificates
    • Assessment and monitoring of certificates issued from certification body

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