Title :
A study of series-resonant DC/AC inverter
Author :
Hsieh, Guan-Chyun ; Lin, Chun-Hung ; Li, Jyh-Ming ; Hsu, Yu-Chang
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Inst. of Technol., Taipei, Taiwan
fDate :
7/1/1996 12:00:00 AM
Abstract :
A new DC/AC inversion for achieving an AC sinusoidal waveform synthesized by a series of quasi-sinusoidal 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 a 1 kW DC/AC inverter is examined by simulation and experimentation in order to assess the system performance
Keywords :
DC-AC power convertors; PWM invertors; harmonic distortion; power semiconductor switches; power system harmonics; resonant power convertors; switching circuits; 1 kW; AC sinusoidal waveform; PWM controller; dynamic conversion states; forced discontinuous-conduction mode; performance; quasi-sinusoidal pulses; resonant capacitor energy storage; series-resonant DC/AC inverter; signal analysis; small-signal model; Capacitors; Force control; Power generation; Power system modeling; Pulse width modulation; Pulse width modulation inverters; Resonance; Signal analysis; Space vector pulse width modulation; System performance;
Journal_Title :
Power Electronics, IEEE Transactions on
