Power System Stability Classification (2021 IEEE/CIGRE Update)
Power system stability classification, the 2021 IEEE/CIGRE update: rotor-angle, voltage, frequency, plus the new converter-driven and resonance categories.
RMS vs EMT Simulation: When Phasor Models Aren’t Enough
RMS vs EMT simulation explained: phasor vs electromagnetic-transient models, time steps, when RMS fails for inverter-based resources, and how to choose.
Voltage Stability in Power Systems with High IBR Penetration
Voltage stability for high-IBR grids: reactive power, P-V and Q-V curves, voltage collapse, and how dynamic reactive support keeps voltage stable.
What Is Grid Strength? Short-Circuit Ratio and Weak Grids, Explained
Grid strength, the short-circuit ratio (SCR), and why weak grids destabilise inverters, explained with a worked SCR example for power engineers.
Grid-Forming vs Grid-Following Inverters: What Every Power Engineer Should Know
Grid-forming vs grid-following inverters explained: how each works, why falling grid inertia makes it matter, and what it means for protection.
