A study of series-resonant DC/AC inverter
- National Taiwan Inst. of Tech., Taipei (Taiwan, Province of China). Dept. of Electronic Engineering
A new dc/ac inversion for achieving an ac sinusoidal waveform synthesized by a series of quasisinusoidal pulses is described. A modified pulse-width-modulated (PWM) controller is presented for driving the power switch to operate in a forced discontinuous-conduction mode (FDCM) so as to achieve series-resonance in the power stage. The output power results mainly from the energy stored in the resonant capacitor and is independent of the number of the resonant quasisinusoidal pulses. Three dynamic conversion states including charging, resonant, and RC-discharging states are modeled and analyzed. Signal analysis for the composite ac sinusoidal waveform is conducted. A small-signal model for system performance investigation is described. A prototype of 1-kW dc/ac inverter is examined in simulation and experimentation for assessing the system performance.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 276228
- Journal Information:
- IEEE Transactions on Power Electronics, Journal Name: IEEE Transactions on Power Electronics Journal Issue: 4 Vol. 11; ISSN ITPEE8; ISSN 0885-8993
- Country of Publication:
- United States
- Language:
- English
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