Analysis and design of three-phase AC-to-DC converters with high power factor and near-optimum feedforward
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| Title | Analysis and design of three-phase AC-to-DC converters with high power factor and near-optimum feedforward |
| Publication Type | Miscellaneous |
| Year of Publication | 1999 |
| Authors | Tsai M-T, Tsai M-T |
| ISBN Number | 0278-0046 VO - 46 |
| Keywords | 5 kW, AC-DC power convertors, audio susceptibility, averaged small-signal technique, control design, control simulation, control system analysis, control system synthesis, electric current control, feedforward, harmonic distortion, Hysteresis, Impedance, Mathematical model, near-optimum dynamic regulation, near-optimum feedforward, optimal control, power conversion harmonics, power factor correction, Pulse width modulation, Pulse width modulation converters, PWM power convertors, Reactive power, rectifying circuits, Switches, Switching frequency, three-phase PWM AC-to-DC converters, unity power factor, Voltage, Voltage control |
| Abstract | This paper presents a three-phase pulsewidth modulated AC-to-DC power converter with unity power factor and near-optimum dynamic regulation. A general mathematical model of the converter has been established to lead to a comprehensive analysis. The averaged small-signal technique is used to obtain the near-optimum feedforward compensator, thus resulting in the output impedance, and the audio susceptibility become zero, that is, the output voltage of the converter presented in this paper is independent of variations of the DC load current and the utility voltage. The proposed procedure of analysis is simple and effective, and it is also easy to implement. Finally, the theoretical formulations are verified both by simulated and experimental results in a 5 kW laboratory prototype system |
| DOI | 10.1109/41.767060 |
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