spacevectormodulation is the preferred PWM method for three-phase current source inverters. This paper presents an SVM implementation that is based on calculation of duty ratio required to synthesize the reference c...
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ISBN:
(纸本)9780780397712
spacevectormodulation is the preferred PWM method for three-phase current source inverters. This paper presents an SVM implementation that is based on calculation of duty ratio required to synthesize the reference current. The steady state and dynamic results of the proposed strategy are presented. The proposed scheme has the advantage of space-vectormodulation with fast dynamic response.
In recent years, there has been a tendency, to operate rectifiers with pulse-width modulated (PWM) switching patterns. But the performances of this Ope of PWM rectifier are in contradiction with their characteristics ...
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ISBN:
(纸本)0780371569
In recent years, there has been a tendency, to operate rectifiers with pulse-width modulated (PWM) switching patterns. But the performances of this Ope of PWM rectifier are in contradiction with their characteristics of Switching frequency The scholars from Japan have presented the control scheme based on space-vector pulse-width modulation (SVPWM). Due to its good characteristic of switching frequency,, it has been studied a lot. This paper presents a simple switching algorithm based on space-vector pulse-width modulation (SVPWM). Testified by the experimental results, the proposed scheme can obtain high power factor and have both rectifying and regenerating abilities.
This paper presents a simple control scheme of three-phase rectifier based on space-vector pulse-width modulation (SVPWM). The realization of the regenerating operation is, illustrated in detail and the predicted curr...
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ISBN:
(纸本)7506251159
This paper presents a simple control scheme of three-phase rectifier based on space-vector pulse-width modulation (SVPWM). The realization of the regenerating operation is, illustrated in detail and the predicted current control is introduced-for avoiding the phase shift between the input voltage and the input current. The proposed strategy is carried out using TMS320F240 DSP (digital signal processor). Experimental results are presented and compared with simulation.
This paper presents a novel current-control-based control strategy, obtained in stationary frame, for a three-phase pulsewidth-modulated ac/dc voltage-source converter. In this control strategy, an error voltage is pr...
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This paper presents a novel current-control-based control strategy, obtained in stationary frame, for a three-phase pulsewidth-modulated ac/dc voltage-source converter. In this control strategy, an error voltage is produced from the comparison of the output de voltage,vith a de reference voltage. This error voltage is then utilized by a proportional plus integral controller to generate a command signal for the input line current amplitude and is automatically controlled to the desired value. Therefore, there is no need to measure the input line currents. Stability analysis of the closed-loop system is made, and the stability region for proportional and integral gains which makes the operating point stable is also found, The resulting closed-loop system not only exhibits good transient response, but also provides sinusoidal line currents and unity power factor, both in the rectifying and regenerating modes. Experimental results are presented and compared with simulations.
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