Calculating PMSM dq-axis parameters with a Precision Power Analyzer and Waveform Measuring Instrument

The Yokogawa WT5000 Precision Power Analyzer and DL950 ScopeCorder have a function to measure electrical angles. This function can be used to calculate the dq-axis parameters of PMSMs.
This white paper describe how to calculate dq-axis parameters along with actual measurement results using the WT5000 and DL950.

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DL950 ScopeCorder

Capture and analyze a wide variety of electromechanical signals and serial buses. High sample rate, long recording times, advanced triggers, and real-time analysis.

SL2000 High-Speed Data Acquisition Unit

The SL2000 is high-speed DAQ/isolated oscilloscope for embedded systems and can be mounted in a system rack. Ideal for multi-channel measurement, control from a PC and data recording.
Up to five DL950 and SL2000 units can be linked and synchronized.

WT5000 - Highest Precision

  • Up to 7 wattmeters / Modular
  • 0.01% of rdg + 0.02% of rng
  • DC to 1MHz
  • 4 motor inputs
  • Harmonics testing to 500th order
  • IEC 61000 compliance testing

Power Analyzers and Power Meters

Measure characteristics of devices that generate, transform or consume electricity. Also called power meters or wattmeters, these devices measure parameters such as true power (watts), power factor, harmonics, and efficiency.

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