Abstract
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.
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Wang, Y., Huang, Z., Luo, X., Huang, Y. (2020). Power Analysis Method Based on DC Bus Voltage Waveform. In: Liang, Q., Liu, X., Na, Z., Wang, W., Mu, J., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2018. Lecture Notes in Electrical Engineering, vol 517. Springer, Singapore. https://doi.org/10.1007/978-981-13-6508-9_83
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DOI: https://doi.org/10.1007/978-981-13-6508-9_83
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