Grid Protection & Resilience

Surviving the Flash:
The Virtual Current Limiter

What happens when a 1000% short-circuit current hits? Standard breakers are too slow. Koopman creates a "Virtual Impedance Shield" in microseconds.

Dr. Tanet • 3 min read • ID: TRANSFORMER-00003
[CRITICAL ALERT] SHORT CIRCUIT DETECTED /// CURRENT SURGE: 1000% (10.0 p.u.) /// BREAKER REACTION TOO SLOW /// TRANSFORMER CORE MELTDOWN IMMINENT /// ARC FLASH HAZARD /// IMMEDIATE DAMPING REQUIRED ///

Speed is the only thing that matters in a short circuit. When a live phase touches ground, current shoots up to 10-20 times its nominal value in milliseconds.

Mechanical breakers take about 3-5 cycles (60-100ms) to open. In the world of power electronics, that is an eternity. By the time the breaker trips, your IGBTs are fried, and your transformer life is cut in half.

The Concept: "Virtual Fuse"

Bangsaen AI introduces the concept of a Software-Defined Fault Current Limiter. We don't wait for the breaker. Our algorithm predicts the surge trajectory and instantly modifies the control logic to act as a "Virtual Impedance."

Short Circuit Protection Graph
Figure 1: The Invisible Shield. Top: Unprotected 1000% surge (Red). Bottom: Koopman instantly clamps the current (Green) by injecting a massive counter-resistance signal (Yellow dashed line).
>>> FAULT DETECTED AT T=0.035s >>> ACTIVATING VIRTUAL IMPEDANCE >>> CLAMPING CURRENT TO 1.5 P.U. >>> INJECTING DAMPING TORQUE >>> PREVENTING THERMAL STRESS >>> SYSTEM RIDE-THROUGH ACTIVE >>>
"It reacts faster than a fuse can melt. We turn a catastrophic explosion into a manageable software event."

Look at the green line in the graph above. While the fault (red) is trying to destroy the system, the output is calmly held at the safety limit (Cyan line). This allows the grid to "Ride Through" temporary faults without blacking out the entire facility.

Eliminate Arc Flash Risk

Replace slow mechanical protection with light-speed mathematics.

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STATUS: FAULT CLEARED /// NO BREAKER TRIP /// HARDWARE INTEGRITY: 100% /// VIRTUAL FUSE RESET /// SYSTEM ONLINE /// READY FOR NEXT EVENT ///