Harmonic current reduction in a three-phase diode bridge rectifier

Lawrance, W.B.; Mielczarski, W.

doi:10.1109/41.170977

Cited by 56 publications

(23 citation statements)

References 5 publications

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“…Application of the optimal current shaping proposed in [7] is extended here to the rectifiers that apply passive current injection networks, having structure of the rectifiers proposed in [4,5]. Results of the same attempt are presented in [8], but the realization proposed in [8] suffers from high complexity and sensitivity on component parameter variations.…”

Section: Introductionmentioning

confidence: 90%

“…For the diode bridge load currents specified by (4) and (5), waveforms of the input currents are sinusoids in phase with the corresponding phase voltages, with the amplitude I m . Thus, effective load observed by each phase of the utility is a resistor of the resistance…”

Section: Current Injectionmentioning

confidence: 99%

“…The technique is analyzed in [6], and it is shown that a part of the input power has to be dissipated or processed by switching resistance emulators in order to obtain any improvement in the input current harmonic distortion and power factor. Although rectifiers [4,5] provide significant improvement in the input current spectrum, in the case of a weak network and/or a high load, where the load current is higher than 5% of the network short-circuit current, the rectifiers cannot meet the IEEE Standard 519-1992. In [7], the circuit proposed in [3] is analyzed, and it is shown that ideally sinusoidal waveforms of the input currents can be obtained if proper current programming is applied.…”

Section: Introductionmentioning

confidence: 98%

“…Various realizations of the current injection device are discussed in [6]. In the case when an insulating transformer with wye-connected secondary is applied at the rectifier input, the current injection device is not required, and the current injection is provided injecting the current in the neutral point of the transformer secondary [5]. In the analysis that follows, the current injection device is assumed to be realized as a zigzag autotransformer, consisting of three pairs of mutually coupled inductors with the same number of turns.…”

Section: Introductionmentioning

confidence: 99%

“…The current injection method is originated in [1,2], and applied in [3] where the current injection and the output voltage control are provided applying two boost converters. In [4,5], the current injection is provided applying passive current injection networks. The technique is analyzed in [6], and it is shown that a part of the input power has to be dissipated or processed by switching resistance emulators in order to obtain any improvement in the input current harmonic distortion and power factor.…”

Section: Introductionmentioning

confidence: 99%

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Three-phase rectifiers that apply optimal current injection

Pejović

Janda

2002

IEEE Trans. Aerosp. Electron. Syst.

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A class of current injection based three-phase high power factor rectifiers is proposed. Low distortion of the input currents and high power factor are obtained applying near optimal current injection. The optimal current injection is discussed, and requirements it imposes to the current injection network are derived. A class of simple current injection networks that provide near optimal current injection, consisting of a transformer, two capacitors, and a number of resistors or resistance emulators is proposed. The power processed by the resistors or resistance emulators is shown to be 8.81% of the input power. Design of the current injection network is discussed, and dependence of the input current distortion on capacitance of the applied capacitors is analyzed. Volt-ampere rating of the transformer is shown to be only 0.16% of the input power. Effects caused by the output current ripple are studied, and a method for their compensation is proposed. Analytical results are experimentally verified.Switching resistance emulation is discussed and its feasibility is experimentally demonstrated.

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