Real Time Digital Simulator (RTDS) Studies

What are RTDS Studies?

Real Time Digital Simulator (RTDS) studies utilize advanced real-time simulation technology to test and validate power system behavior, protection schemes, and control systems. RTDS provides a hardware-in-the-loop testing environment that enables comprehensive analysis of complex power system phenomena.

RTDS technology bridges the gap between offline simulation studies and field testing, providing a safe, controlled environment for testing protection relays, control systems, and power electronic devices before deployment.

RTDS Capabilities

  • Real-Time Simulation: Continuous real-time simulation with microsecond time steps.
  • Hardware-in-the-Loop: Direct interface with physical protection and control devices.
  • Closed-Loop Testing: Complete testing of protection schemes and control systems.
  • Multi-Rate Simulation: Different simulation rates for various system components.
  • Scalable Architecture: Modular design for systems of varying complexity.
  • Advanced Modeling: Detailed models of power system components and phenomena.

Types of RTDS Studies

  • Protection Testing: Comprehensive testing of protection relay schemes and coordination.
  • Control System Validation: Testing of power system control algorithms and strategies.
  • Power Electronics Testing: Validation of FACTS devices, HVDC systems, and renewable energy converters.
  • Transient Studies: Analysis of electromagnetic and electromechanical transients.
  • Stability Studies: Real-time assessment of power system stability and dynamics.
  • Grid Integration Studies: Testing of renewable energy and distributed resource integration.

Benefits of RTDS Studies

  • Risk Mitigation: Comprehensive testing before field deployment reduces operational risks.
  • Cost Effectiveness: Reduced need for field testing and commissioning time.
  • Comprehensive Testing: Testing of scenarios difficult or dangerous to create in real systems.
  • Validation & Verification: Proof of concept for new technologies and control strategies.
  • Training & Education: Safe environment for operator training and education.
  • Research & Development: Platform for developing and testing new protection and control concepts.

How We Perform RTDS Studies?

  • System Modeling: Develop detailed real-time models of power system components.
  • Test Case Development: Design comprehensive test scenarios and fault conditions.
  • Hardware Integration: Interface physical devices with the RTDS simulator.
  • Real-Time Testing: Execute real-time tests and capture system responses.
  • Data Analysis: Analyze test results and validate system performance.
  • Reporting: Provide detailed test reports with findings and recommendations.

RTDS Applications

  • Utility Applications: Transmission and distribution system studies.
  • Industrial Systems: Large industrial power system analysis.
  • Renewable Integration: Wind and solar power plant integration studies.
  • HVDC Systems: HVDC converter and control system testing.
  • Microgrids: Microgrid control and protection validation.
  • Research Institutions: Academic research and development projects.

RTDS Test Categories

  • • Protection relay testing and validation
  • • Control system performance verification
  • • Power electronic device testing
  • • Transient stability analysis
  • • Electromagnetic transient studies
  • • Grid code compliance testing

Study Deliverables

  • • RTDS system model documentation
  • • Test procedure specifications
  • • Real-time test execution reports
  • • Performance analysis and validation
  • • Hardware-in-the-loop test results
  • • Recommendations for field implementation

RTDS Features

Time Step

50 μs typical, down to 1.5 μs

I/O Capability

Analog, digital, optical interfaces

Network Size

Up to thousands of buses

Communication

IEC 61850, DNP3, Modbus