Precision load bank and data recorder for mission-critical resiliency testing
The PSL Grid Thumper™ is a tool for testing, measuring and characterizing the stability of the electric grid. By drawing large precisely timed pulses of resistive and reactive power, Grid Thumper subtly perturbs local steady-state voltage and phase angles so as to reveal unique stability characteristics of the local grid.
- What is the natural frequency where forced oscillations will have the greatest effect?
- What is the damping coefficient (i.e., how long do oscillations “ring”)?
- How “rigid” is the grid ?
- How do distributed energy resources affect grid stability?
PSL provides a shipping container sized device that is placed on customer-selected sites to conduct active grid-probing tests in various modes of operation. Precision PSL sensors measure test events locally and selected distances from the source. Time stamped data is compiled in a database for analysis.