Application of PSCAD - Renewable Integration Studies

General Introduction and Getting Started
Introduction to Electromagnetic Transient Analysis and Dynamic response studies

• PowerPoint discussion
  Introduction to PSCAD
• Master Library, PSCAD Features, and Examples
• Workbook, Project, Workspace, Global substitutions, Messages etc.
• Getting Started – Hands-on tutorials
  •  Developing simulation cases for transient studies
    • Transformers – Saturation and remnant flux modelling
    •  Loads
      •  Static/Dynamic loads
      •  Induction motor loads
  • Voltage sources – overview of various source models available in PSCAD, their suitability for various studies
  •  Transmission Lines and Cables
    • PI, Bergeron, and Frequency dependent models – When do we need detailed models.
  •  Breaker TRV Exercise
• Parametric studies using Multiple Run

Network Model Development in PSCAD

• Model conversion from PSSE or DigSILENT (PRSIM – Data conversion from PSS/E)
  •  Discussion network conversion tools
• Model validation
• Discussion on network equivalency (Static/FDNE/Dynamic)
• Discussion on determining the study area for various studiesPassive Network Frequency Scans
• Updating the Network Model with Dynamic Plant Models
  •  Synchronous Machines

Modeling Generator controls (exciters and governor modeling)

Inverter technology, Model testing (General Procedures)
Introduction to the Application of PSCAD (EMT) Simulations for Renewable Integration Assessment – A PowerPoint discussion
Review of Inverter Technology

•  2-Level Inverter example with basic control loops – Grid following inverters – hands-on tutorials and discussions
  •  PLL and d-q conversion(d-q conversion)
  •  Decoupled Controls
  •  PPC and inverter level controls
    •  Voltage controller (or Q/PF)
    • Active power and frequency control
    •  Current Limiters
    •  Fault Ride Through and control freezing.
    •  Fault current injection
    •  Frequency response
    •  Negative Sequence Current injection

Wind and Solar PV (and BESS) technology and model testing

• Detailed, vendor level generic model development
  •  Type 1, Type 3, and Type 4 (Full converter)
  •  EMT model configurations for PV, Wind, Fuel Cell, Control Modelling, and Protection Systems
  • Plant Controller (PPC)

Model testing on a Single Machine type setup

• Model acceptance test procedure – setup and automation (inverter-based example)
•  Model benchmarking (synchronous machine-based example)
  •  Benchmarking EMT vs RMS models
  • Developing custom control models in PSCAD

Performing Full Impact EMT Studies

• Full Impact Assessment
  • Using PNI (parallel network Interface) feature and connecting models running at multiple time steps
  •  Developing study ‘scenarios’
  •  Performing FRT and network dynamic studies
  •  System strength and control interactions
•  Mitigation options
  • Synchronous Condenser, SVC/STATCOM
• Discussion and tutorials on SSO/SSR/SSTI