Inverter-Based Resource (IBR) Performance & Grid Compliance
Watt Consultants evaluates IBR and power plant controller (PPC) behavior under grid disturbances, including frequency response analysis, voltage and frequency ride-through, and injection limit studies. We fine-tune inverter controls and ensure compliance with ISO/RTO interconnection requirements.
➲ Advanced Transient & Dynamic Analysis
Using EMT tools like PSCAD and EMTP-RV, we simulate fast transient events, switching operations, and fault-clearing conditions. Our services include Temporary Overvoltage (TOV), Transient Recovery Voltage (TRV), transformer energization, and motor starting studies to validate protection coordination and equipment resilience.
➲ Model Validation & Benchmarking
We perform benchmarking studies between PSS®E and PSCAD to validate model accuracy under faulted and unfaulted conditions. This ensures consistency and credibility in interconnection study submissions for utilities, ISOs, and developers.
➲ System Stability & Control Studies
WattC provides small signal stability and oscillatory damping analyses using tools like Powertech’s SSAT. We assess dynamic interactions and perform sensitivity studies to recommend control enhancements that improve system resilience and grid support.
➲ Flicker, Harmonics & Power Quality
We analyze voltage flicker and harmonic distortion using RMS and EMT simulations. Our team develops mitigation strategies and designs harmonic filters—single or multi-tuned—to ensure compliance with IEEE 519 and protection of end-use equipment.
➲ Reactive Power & Compensation Studies
We support planning and performance validation for dynamic VAR devices including STATCOMs and SVCs. Our studies include voltage recovery profiles, control tuning, and optimal placement to maintain voltage stability and reactive power balance in weak grids.
➲ Short Circuit Ratio & Black Start Studies
WattC evaluates Short Circuit Ratio (SCR) to assess grid strength for IBR integration and guides appropriate tuning of controls and protection settings. We also conduct black start feasibility studies under NERC EOP-005-3, ensuring readiness for grid restoration and system energization.
