BriPower Delivers 80kW Integrated Power System Optimizing Low-Power-Factor Performance for Reactor Testing

BriPower has successfully delivered anddeployed a customized 80kW integrated turnkey power system to European Reactor manufacturer  . Engineered by paralleling four ZGX Series 20kW programmablepower supplies, the system is commissioned for single-phase AC acoustic andvibration testing of high-inductance loads.

Testing highly inductive loads presents asevere operational profile where the power factor approaches zero. The powersystem must handle high-density reactive power circulation without producingreal power, shifting the inverter bridge switching states to high-stress pointsand demanding exceptional thermal management and control loop stability.

To mitigate control loop resonance shiftscaused by heavy inductive loads, BriPower optimized the all-digital controlalgorithms of the ZGX platform. This ensures high-precision output andexcellent dynamic response across the operational range under near-zero powerfactor conditions, while effectively suppressing circulating currents among theparalleled units during single-phase AC operation.

Furthermore, to address the risk ofinductive energy kickback during an emergency-off (EPO) sequence, the systemincorporates specialized protection and energy dissipation mechanisms. Upon anEPO trigger, the system safely manages the rapid return of stored magneticenergy, protecting the internal DC-link and inverter modules from overvoltagerisks.

The successful implementation of this 80kW integrated system validates the robust control topology and reliability of theZGX series under extreme reactive power profiles. BriPower remains focused onexpanding high-power electronics capabilities to deliver precise and engineeredsolutions for demanding industrial testing applications.