Powering Reliable BESS Commissioning with the Miro PQ45

Validating BESS Dynamic Performance with the Miro PQ45 Class A Power Quality Analyser

Battery Energy Storage Systems (BESS) are becoming an essential part of modern power networks, supporting renewable integration, frequency regulation and voltage stability. During commissioning, verifying the dynamic performance of a BESS is critical to ensure the system responds correctly to changing network conditions and meets project and utility requirements.

The CHK Power Quality Miro PQ45 Class A Power Quality Analyser provides engineers with a powerful tool for commissioning and performance validation. Its high resolution Multi Parameter Capture records voltage, current, active power, reactive power, apparent power, power factor and frequency at one cycle resolution, allowing fast electrical events to be captured and analysed with precision.

During commissioning, the PQ45 can be configured to trigger on frequency deviations, ROCOF, voltage dips, swells and user defined voltage or frequency thresholds. This enables commissioning engineers to verify BESS response times, observe system behaviour during contingency events and confirm compliance with network performance requirements.

Application Note – Using Miro PQ45 for BESS Commissioning v1.0

Using Citrus Software, engineers can review captured events, measure response and recovery times, analyse system performance and generate detailed engineering reports. The ability to export recorded data also supports project documentation, commissioning records and acceptance testing. The Miro PQ45 delivers the measurement accuracy and high speed event analysis required for today’s Battery Energy Storage System projects, providing utilities, EPC contractors, renewable energy developers and commissioning engineers with confidence that BESS installations are operating as designed before they are placed into service.