PSCAD · EMT · DIGITAL TWIN

From RMS Studies to Detailed EMT Simulation,
Toward Digital Twins for Power Equipment

Power systems increasingly depend on power electronics and complex controls.
We complement RMS studies with EMT simulation to investigate fast transients and control interactions,
developing power equipment digital twins validated against field data.

01 · RMS

System-Level Dynamics

Study fundamental-frequency voltage, frequency, and system dynamics

02 · EMT

Fast Equipment Responses

Examine instantaneous waveforms, electromagnetic transients, and control responses

03 · DIGITAL TWIN

Connecting Physical Systems and Models

Compare data, calibrate models, and validate operating scenarios

WHY EMT ANALYSIS

More Equipment Requires Analysis of Fast Phenomena

RMS dynamic studies efficiently assess fundamental-frequency responses in large power systems. EMT analysis complements these studies when detailed waveforms matter, including fast inverter, HVDC, and grid-forming control responses, switching transients, and harmonics.

Power Electronics and Control Interactions

Use detailed models to investigate how inverters, HVDC systems, and grid-forming controls interact with the grid.

Instantaneous Responses to Switching and Faults

Analyze short-duration voltage and current waveforms, including switching overvoltages and inrush currents.

Scenario Validation Before Field Demonstration

Compare responses under different operating conditions and control settings, and define what to verify during testing and demonstration.

RMS and EMT studies are used together according to study objectives and timescales. The reliability of EMT results depends on model detail, input data, and validation.

WHY DIGITAL TWIN R&D

Refine Design Models to Reflect Real Equipment

Equipment responses depend on operating state, control settings, and environmental conditions as well as design values. This makes comparison with field and test data, and the calibration of model parameters, essential parts of development.

Collect Field Data

Organize measurements, test data, equipment specifications, and operating conditions.

Compare and Calibrate Models

Compare measurements with simulation results and validate the model’s range of applicability.

Support Design and Operating Decisions

Use validated models to compare proposed improvements and operating scenarios.

Real-time data integration, coupled electrical and thermal models, and condition assessment functions are developed in stages to match the equipment and R&D scope.

RESEARCH FOCUS

What Engineering Challenge Are You Working On?

Our research focuses on electrical safety, equipment design, and grid integration.
We select EMT, electrical, and thermal models to suit each project and define validation methods using field data.

RESEARCH 01

Electrical Safety Research

Arc Flash and Electrical Incidents

Reconstruct incident conditions
and analyze hazards.

Develop scenarios for arc flash, electric shock, touch voltage, and other electrical safety issues, then compare results as conditions change.

Research Approach

Define incident conditions → Build the model → Compare mitigation options

Potential Deliverables

Scenario analysis results · Engineering review report

View Related Modeling Examples

전기안전 연구 관련 모델링 예시

Example module configuration. Click the image to enlarge.

RESEARCH 02

Equipment Design and Performance Research

Cable and Transformer Design

Review design and operating conditions
using simulation models.

Study design variables and operating conditions using cable current-temperature characteristics, transformer thermal behavior, and life assessments.

Research Approach

Review design data → Develop thermal and electrical models → Compare performance

Potential Deliverables

Design review models · Parameter analysis · Assessment results

View Related Modeling Examples

설비 설계·성능 연구 관련 모델링 예시

Example module configuration. Click the image to enlarge.

RESEARCH 03

Grid Integration Research

Railway Power Systems and Distributed Generation

Examine complex system responses
in an integrated model.

Model equipment, loads, and controls in railway traction power systems and distributed generation projects, then analyze system responses across operating scenarios.

Research Approach

Define the system → Integrate equipment and controls → Analyze scenarios

Potential Deliverables

Power system models · Custom modules · Operating scenarios

View Related Modeling Examples

계통 연계 연구 관련 모델링 예시

Example distributed generation and distribution system model. Railway system models are developed separately to suit the equipment.

POWER EQUIPMENT DIGITAL TWIN

Power Equipment Digital Twin Consultation

From AI data centers and demonstration facilities to power plants and island grids.
Work with our specialists to define an R&D approach that connects equipment models with field data.

01 · High-Capacity Power Supply Facilities

AI Data Centers, Semiconductor Plants, and More

Discuss integrated modeling of large electrical loads and incoming supply and distribution systems, including load variations and operating scenarios.

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02 · Cable Demonstration and EPC

400 kV Cable Demonstration and EPC Projects

Discuss electrical and thermal modeling, comparison with demonstration data, and operating condition studies for the design and validation of EPC projects, including 400 kV cables.

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03 · HVDC Demonstration

DC Transmission and Grid Integration

Discuss modeling and demonstration projects covering converter equipment, controls, and interactions between AC and DC systems.

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04 · Power Plant Modeling

Generation Equipment and Control Systems

Connect models of generators, transformers, auxiliary equipment, and controls, and discuss digital twins for operating condition and transient studies.

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05 · Island Generation Systems

Islanded Systems and Parallel Generator Operation

Discuss integrated modeling of island generation, distribution systems, and loads, with scenario and response studies covering islanded operation and parallel generators.

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06 · Solar PV and Wind Integration Demonstration

Solar PV and Wind Integration Demonstration

Develop grid integration models for solar PV and wind power, and discuss digital twin R&D through control and operating scenario studies and comparison with demonstration data.

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07 · Railway Power System Modeling

Railway Power System Modeling

Discuss system modeling and custom modules for railway traction supply, substations, loads, and operating conditions. We define a digital twin R&D approach based on the railway line and available equipment data.

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08 · Power Conversion and Energy Storage

Battery Energy Storage (BESS) and UPS Modeling

Discuss BESS and UPS models covering battery charging and discharging, power converters, and controls. We analyze responses across operating modes and supply transfer scenarios and agree the validation scope.

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09 · Electrical Incident and Fire Investigation

Equipment Failure, Fire, Electric Shock, and Arc Hazard Analysis

We review field evidence and operating conditions from equipment failures, fires, and electric shock incidents, and analyze electrical fault scenarios and arc hazards. PSCAD modeling and comparison with measurement and test data help assess possible causes and inform measures to prevent recurrence and reduce risk.

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YOUR PROJECT

Need a Digital Twin
Tailored to Your Equipment?

Tell us about your equipment, available data, and study objectives. We will work with you to define the modeling scope and demonstration and validation methods.

Discuss Your Project with a Specialist ↗

Share your area of interest and equipment details on KakaoTalk to begin a consultation. Data integration and validation scope are agreed according to site conditions and the information available.

HOW WE COLLABORATE

From Consultation to Practical Deliverables

01

Specialist Consultation

Define the problem and key engineering questions together.

02

R&D Planning

Agree the required data, development scope, validation criteria, and schedule.

03

Model and Module Development

Build PSCAD models and custom modules reflecting equipment characteristics.

04

Validation and Implementation Support

Review results against reference data and scenarios, and provide guidance and training.

DELIVERABLES

Turn Research Results into
a Foundation for Future Design and Operation

We agree deliverables and handover methods so users can understand and reuse the models. We can also discuss extending them into power equipment digital twins connected to field data.

Simulation Models and Custom Modules

PSCAD models, input parameters, and scenario configurations

Engineering Analysis and Validation Documents

Comparison results, applicable conditions, and model usage scope

User Guidance and Technical Training

Support for running models, interpreting results, and subsequent use

Detailed deliverables and scope are agreed for each project.

Explore R&D-Based Module Examples

Examples of equipment modules and supporting physical, time, and pressure models. Applicable standards, editions, and validation scope are confirmed for each project.

TALK TO AN EXPERT

Start with the Challenge You Want to Solve.

You do not need a finalized development specification to begin.
Tell us about the equipment and your objectives, and our specialists will help define an R&D approach.

Talk to a Specialist on KakaoTalk ↗For Your Consultation: Equipment · Engineering Challenge · Preferred Schedule