Power
System Studies.
Detailed analysis for efficient systems.
The key to our effectiveness in customer satisfaction lies in a project-oriented approach that also takes into account systemic implications.
Project development involves:
Database setup.
Power flow and short-circuit studies.
Frequency regulation.
Voltage control.
Sub-synchronous resonance,
at EMT and RMS levels.
Protection adjustment and coordination.
Adjustment of Power System Stabilisers (PSS).
Power quality, harmonics and flicker studies.
Transformer energisation studies (Inrush).
Insulation coordination.
Ferroresonance analysis.
TRV (Transient Recovery Voltage) calculations and circuit breaker definition.
Small-signal stability studies:
modal analysis.
Transient stability studies:
dynamic simulations.
Design and verification of earthing grids.
Net Acess
We are committed to developing studies that facilitate project financing and simplify the commercial access process.
We carry out electrical studies from the early stages of the project up to the final studies for submission to the relevant authorities.
We are familiar with the specific grid access process in each country. Technical Procedure N°1 in Argentina, Technical Standard for Safety and Quality of Service in Chile, Regional Transmission Regulation in Central America, among others. In turn, our experience and the use of the precise software tool in each country allows us to optimise the path and approval of the connection of a project: generation plants, storage and/or transmission systems.
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➔ Confirm the dimensions of the project from a systemic perspective, assessing the impact of its connection on current and future conditions.
➔ Validate the choice of connection point or propose alternatives that increase its benefits.
➔ Determine the presence of constraints, if any, and alternatives for their mitigation.
➔ Demonstrate compliance with all requirements/requirements of local authorities.
System Operation Studies for Net Operators
With a focus on operational security, we provide an essential complement to grid operators and major players in the electricity market.
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Operational analysis for system evolution.
Income from high renewable generation.
Transition in the energy matrix, decarbonisation plans and replacement by renewable sources and batteries.
Analysis of (multiple) extreme contingencies and development of defence plans to deal with them in a stable manner.
Analysis of complementary / ancillary services, definition of requirements, performance indices, etc.
Systemic analysis of frequency control.
Primary/secondary/tertiary control.
Minimum inertia requirements.
Load shedding schemes.
Charging ramps for NCRE plants.
Local regional analysis of voltage control.
Analysis of the interconnection of systems, countries.
Transmission system expansion assessment.
Design of Control and Protection Systems (DAG/DAC) to maximize dispatches
PHASE 1: STATIC ANALYSIS OF THE NET
➔ Identification of limiting elements and scenarios in network N or disturbances (N-1) leading to the overloading of these elements.
➔ Definition and identification of the constraints present.
➔ Design of the automatic actions required to avoid overloads.
➔ Calculation of new transmission limits, optimising transfers and maximising generation.
PHASE 2: DYNAMIC SIMULATIONS
➔ Maximum times available for taking action.
➔ Definition of variables of interest for control actions.
➔ Definition of communication links.
➔ Concrete control actions.
Finally, we evaluate and validate the protection system with its settings, in order to ensure safe and reliable operation at the new transmission limits with the DAG/RAG scheme operational.
Design Studies
The performance of installation design studies, based on local regulations and international standards (IEEE/IECest ANSI), guarantees the acquisition of the appropriate equipment and validates the design before control authorities.
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Short-circuit study and equipment capacity verification.
Insulation coordination study.
Reactive power compensation study.
Busbar capacity study.
Grounding grid capacity study.
Transient recovery voltage (TRV) studies.
Transformer energisation.
Power quality studies (harmonics and flicker).
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