A Review of Three-Phase Improved Power Quality AC–DC Converters

Singh, Bhim; Singh, B.B.; Chandra, Ambrish; Al‐Haddad, Kamal; Pandey, Ashish; Kothari, D.P.

doi:10.1109/tie.2004.825341

Cited by 1,140 publications

(325 citation statements)

References 386 publications

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“…The grid virtual flux vector in a stationary frame (9) In practice, the value of internal line filter resistance R can be neglected since its value is much smaller than the value of the line inductance impedance Z L. Therefore, from equation (9) can be rewritten in the stationary coordinates for acquiring the magnitude of grid virtual flux at both real and complex axes as shown in (10) and (11).…”

Section: Conceptual Design Of a Virtual Fluxmentioning

confidence: 99%

A Concept of Virtual-Flux Direct Power Control of Three-Phase AC-DC Converter

Yusoff¹,

Razali²,

Karim³

et al. 2017

IJPEDS

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This paper presents a proposed technique of virtual-flux direct power control (VF-DPC) as the improvement in control method from the basic of conventional direct power control (DPC) for front-end three-phase pulse width modulated (PWM) in ac-dc converter. Three sensors in order to measure the three phase input voltage have been eliminated in the proposed method of virtual flux (VF) regarding from the estimation technique. Theoritical principles of VF-DPC are discussed in this paper. The steadystate performance of VF-DPC and conventional DPC are evaluated and presented in this work to estinguish for the excellent performance. It is shown that the VF-DPC exhibits the several advantages, particularly in providing low total harmonic distortion with almost sinusoudal of input current and unity power factor (pf) operation under balanced three phase voltage supply. The simulation results from both methods through Matlab simulation have demonstrated the outstanding performance of the new proposed control technique from VF-DPC.

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Section: Conceptual Design Of a Virtual Fluxmentioning

confidence: 99%

A Concept of Virtual-Flux Direct Power Control of Three-Phase AC-DC Converter

Yusoff¹,

Razali²,

Karim³

et al. 2017

IJPEDS

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“…These are reasons reduce the harmonic component of the input current [19]. The requirement placed on active PFC rectifier system can thus be summarized as follows: the Standard EN 6100-3-2 if < 16A and EN 6100-3-4 if > 16A,The harmonics <5% at rated power is often required, ohmic fundamental mains behavior (cos(  )>0.99), compliance with specifications regarding electromagnetic, especially conducted interference emissions by means of suitable EMI filtering [20], [21].The output dc voltage relative to the main voltage, a system with boost type, buck type, buck-boost-type characteristic has to be provided. This paper proposed second stage part (2) the control technique of the PWM converter, which enables the converter to achieve the unity power factor with voltage source sensor of PMSG and DC-current load sensor.…”

Section: Phase-modular Y-rectifier DC Linkmentioning

confidence: 99%

“…This new breed of AC/DC converters gives excellent power quality indices like nearly unity input power factor, negligible THD in source current, reduced ripple factor of load voltage and fast-regulated load voltage. It is employed to reduce the dc-link voltage ripple supply currents, even in the case of unbalanced [20]. [21].…”

Section: Phase-modular Y-rectifier DC Linkmentioning

confidence: 99%

An application phase-modular rectifier applied to MMC with medium voltage based on wind turbine generator

Watanakul

2014

IJET

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This paper proposes two stages of controller. First stage, direct power control (P-Q control) applied single-phase structure of multilevel modular converter (MMC) , multilevel cascaded H-Bridge inverter with 9-level SPWM injection to medium voltage (24kV) based on wind turbine generator (PMSG)rated capacity 25kVA. Second stage, three-phase PFC rectifier with phase-modular Y-rectifier, boost-type. The separate dc sources (DC-links) average voltage at 178V (Vdc1-Vdc12). This study is concerned with the application, operating, principle, and design example. The unity power factor operation of PMSG is realized by controlling of phase-modular Y-Rectifier system, and the current waveform distortion results increase of the lower harmonics distortion. The P-Q controller can make it possible of the grid line current phase by providing the direct instantaneous power control in the steady state under the active power and reactive power command. The data collected by PSIM and MATLAB simulation are used in comparison with the experimental tester of results. This provides guideline to further analyze and improvement energy efficiency and power quality in electrical system pertinent to wind turbine generator (PMSG).

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“…In prior literature, there are several works dedicated to the study of AC/DC three-phase power supplies, synthesized in [3]. Most of the converters based on a single switch have high power factor (PF) by penalizing the Total Harmonic Distortion (THD) or having the need of high output voltage.…”

Section: Introductionmentioning

confidence: 99%

Three phase converter with galvanic isolation based on Loss-Free Resistors for HB-LED lighting applications

Castro

Lamar

Arias

et al. 2016

2016 IEEE Applied Power Electronics Conference and Exposition (APEC)

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Abstract-This work presents a driver for High-Brightness Light-Emitting Diodes (HB-LED) in three-phase grids, which complies with IEC 1000-3-2 Class C requirements, achieves high Power Factor (PF), low harmonic distortion, as well as, the capability to achieve full dimming while disposing of the bulk capacitor and having galvanic isolation. The HB-LED driver is based on the use of six two-port cells with their inputs connected to the three-phase network and their outputs connected in parallel. Each one of these cells is a DC/DC converter operating as a LossFree Resistor (LFR) based on the concept of a flyback working in Discontinuous Conduction Mode (DCM). Moreover, it works in the full range of the European three-phase line voltage, which varies between 380V and 420V, and it supplies an output voltage of 48V with maximum power of 90W.

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A Review of Three-Phase Improved Power Quality AC–DC Converters

Cited by 1,140 publications

References 386 publications

A Concept of Virtual-Flux Direct Power Control of Three-Phase AC-DC Converter

A Concept of Virtual-Flux Direct Power Control of Three-Phase AC-DC Converter

An application phase-modular rectifier applied to MMC with medium voltage based on wind turbine generator

Three phase converter with galvanic isolation based on Loss-Free Resistors for HB-LED lighting applications

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