TRANSIENT CONTROL DATE: APR 2025

Pressure Pulse Control:
Eliminating Hydraulic Hammer

The Mission: A high-head pumped storage unit faced catastrophic pressure spikes during load rejections. Our objective: Recalibrate the governor logic to safely dissipate transient energy.

MISSION STATUS:
STABILIZED
Surge Reduction
-40%

Peak Pressure Drop

Safety Validation
100%

Within Design Limits

Hammer Incidents
0

Since Implementation

01 The Threat Vector

A high-head pumped storage unit (600m+) suffered catastrophic pressure spikes during emergency trips and load rejections. These pressure transients (water hammer) threatened the structural integrity of the penstock and increased vibration across the entire powerhouse, leading to major safety concerns and regulatory non-compliance.

> RISK DETECTED: PENSTOCK RUPTURE THREAT
> CAUSE: INCORRECT GOVERNOR CLOSING LAW

02 Tactical Execution

We deployed the AnoHUB Transient Protocol to remodel the system dynamics:

  • Transient 3D Simulation Conducted a high-fidelity dynamic simulation of the entire water conveyance system to map pressure wave propagation and reflection points, identifying the resonance frequencies.
  • Governor Recalibration Implemented a new, multi-stage closing law (slow-fast-slow) derived from the simulation. This allowed the unit to absorb transient energy gradually without stalling or over-speeding.
  • Safety Validation Verified the final pressure surge against international safety standards and the penstock's original design limits during live load rejection tests on site.
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