Title :
Switching harmonics in the DC link current in a PWM AC-DC-AC converter
Author :
Zhang, H. ; Wheeler, N. ; Grant, D.
Author_Institution :
Dept. of Electr. & Electron. Eng., Bristol Univ., UK
Abstract :
A novel method for determining the DC link current drawn by a PWM inverter is described. The equations derived are simple to apply and yield considerable analytical insight into the DC link current waveform. The method enables the RMS current flowing in the DC link capacitor in a back-to-back power converter to be calculated, allowing the capacitor to be specified correctly. Simulated and experimental results verify the analysis
Keywords :
AC-AC power convertors; PWM power convertors; harmonic distortion; power system harmonics; switching circuits; DC link capacitor; DC link current; PWM AC-DC-AC power converter; RMS current; back-to-back power converter; current waveform; switching harmonics; Analog-digital conversion; Bridges; Capacitors; Equations; Harmonic analysis; IEEE members; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Switching converters;
Conference_Titel :
Industry Applications Conference, 1995. Thirtieth IAS Annual Meeting, IAS '95., Conference Record of the 1995 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-3008-0
DOI :
10.1109/IAS.1995.530640
