Grid-Forming Inverter Requirements: Specs and Compliance Testing
Grid-forming inverter requirements explained: GC0137, AEMO, IEEE 2800.2 and UNIFI specs, the key tests, and a worked phase-jump current-limit example.
Stability Screening for IBR-Rich Systems Using SCR, RMS, and EMT
Stability screening for IBR-rich systems: SCR and WSCR limits, when to escalate from RMS to EMT, with a worked WSCR example and real ERCOT and AEMO cases.
SRF-PLL Design: Synchronizing an Inverter to the Grid
SRF-PLL design for grid synchronization: the structure, second-order Kp and Ki tuning, the bandwidth trade-off, weak-grid limits, and DSOGI variants.
Synchronous Condensers: Restoring System Strength to Weak Grids
How a synchronous condenser restores system strength to weak grids: fault current, reactive power and inertia, with a worked SCR uplift example.
Reliability Services From Inverter-Based Resources: What the Grid Code Requires
Reliability services from inverter-based resources, mapped to grid-code rules: frequency droop, reactive support, ride-through and a 0.95 PF example.
