Power Analysis Method Based on DC Bus Voltage Waveform

  • Yicheng WangEmail author
  • Zhiyong Huang
  • Xiaolong Luo
  • Yinguo Huang
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 517)


This essay analyzes the measurement of the power factor in the drive motor system of the frequency converter. Due to the fact that it is inconvenient to utilize the power analyzer to acquire the motor power factor directly. A method is proposed. We can collect the DC bus signal waveform. Then we the could reconstruct motor stator three-phase voltage and current to test indirectly the motor power factor. In addition, there are some simulations and data collected from experimental device in order to verifying accuracy. Congruously, the experimental results show that within a certain error range, the motor power factor can be measured by voltage and current reconstruction.


DC bus voltage Phase voltage reconstruction Phase current reconstruction Power analysis Power factor 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Yicheng Wang
    • 1
    Email author
  • Zhiyong Huang
    • 1
  • Xiaolong Luo
    • 1
  • Yinguo Huang
    • 1
  1. 1.State Key Laboratory of Precision Measuring Technology and InstrumentsTianjin UniversityTianjinChina

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