VSC-HVDC TECHNOLOGY FOR EFFICIENT, RELIABLE AND FLEXIBLE POWER TRANSMISSION
MMC (Modular Multilevel Converter) technology based on Voltage Source Converters (VSC) enables precise and independent control of active and reactive power, high reliability, fast dynamic response, and efficient integration with AC grids, including in applications with stringent control and stability requirements.
Core Benefits & Functionality
Independent control of active & reactive power
Full quadrant operation (P-Q) for optimized grid dispatch and frequency regulation.
Voltage support and stability enhancement
Static synchronous compensation (STATCOM) functionality even at zero power transfer.
High dynamic performance and fast response
Fast dynamic response for grid support, voltage control, post-fault recovery, and critical oscillation damping
Ideal for long distance & interconnections
Optimized for offshore wind integration and cross-border HVDC super-grids.
PSTG Tech Services
Specialized in the development of PSCAD/ATP/ANATEM models and comprehensive EMT studies for MMC-VSC HVDC systems.
PSCAD / ATP / ANATEM MODEL DEVELOPMENT
Detailed MMC converter models
Sub-module level discretization for accurate harmonic profiling.
EMT modeling of controls
Integration of vendor-specific firing and monitoring logic.
Accurate representation of AC/DC components
Frequency-dependent line and cable models for transient analysis.
Model validation
Cross-platform benchmarking and field-data calibration.
COMPREHENSIVE STUDIES (EMT)
AC and DC faults
Analysis of blocking sequences and surge arrester coordination.
HVDC system energization
Inrush current mitigation and capacitor pre-charging logic.
Black start and recovery
Restoration of collapsed networks via VSC self-commutation.
Interaction with weak grids
Stability margin assessment for low Short Circuit Ratios (SCR).
Protection coordination
Validation of differential, overcurrent, and distance relay settings.
If your project needs consultative help in:
- HVDC-VSC
- HVDC-LCC
- Grid-Forming Converters
- Grid-Following
- STATCOM
- SSSC
- BESS
- Data Centers