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On evaluating the current distortion of the single-phase switch-mode rectifiers with current slope maps

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3 Author(s)
Yu-Kang Lo ; Dept. of Electron. Eng., Nat. Taiwan Inst. of Technol., Taipei, Taiwan ; Sheng-Yuan Ou ; Huang-Jen Chiu

This paper presents a simple way to evaluate the distortion level of the input current for single-phase switch-mode rectifiers (SMRs). Based on the possible conducting paths of various topologies of SMRs, slopes of the input and command currents are defined to form a slope map. By comparing the defined current slopes, the causes of current distortion are examined. Distorted waveforms of the input currents under hysteresis control are reviewed and classified into three types. Design criteria for the circuit parameters are also studied to reduce the current distortion level. Simulations and experiments are performed and the results show strong conformity to the theoretical analysis.

Published in:

IEEE Transactions on Industrial Electronics  (Volume:49 ,  Issue: 5 )