The Essence of Three-Phase PFC Rectifier Systems—Part I

Friedli, Thomas; Hartmann, M.; Kolar, Johann W.

doi:10.1109/tpel.2012.2197867

Cited by 649 publications

(275 citation statements)

References 47 publications

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“…In this condition, by neglecting the high-frequency components effect, the unbalanced load currents i x (x = u, v, w) can be expressed as in (5), where they are composed of the positive-sequence i For the sake of simplicity in the unbalanced case, the inverter switching function given in (3) can be represented in the time domain as (6) in which the high-frequency components are not considered, ⎛…”

Section: Harmonic Transfer At Inverter Levelmentioning

confidence: 99%

“…1(a) and compared with a conventional drive ( Fig. 1(b)), have demonstrated a promising performance in reducing the drive input current harmonic distortion [6]- [9]. The EI technique is a simple and cost-effective method, and in order to justify the better performance of EI-based ASD systems, its performance from an interharmonic perspective needs to be fully analyzed.…”

Section: Introductionmentioning

confidence: 99%

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Performance evaluation of electronic inductor based adjustable speed drives with respect to line current interharmonics

Soltani

Blaabjerg

Zare

2017

2017 IEEE Applied Power Electronics Conference and Exposition (APEC)

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Abstract-Electronic Inductor (EI)-based front-end rectifiers have a large potential to become the next generation of Active Front End (AFE) topology used in many applications including Adjustable Speed Drives (ASDs) for systems having unidirectional power flow. The EI-based ASD is mostly attractive due to its improved harmonic performance compared to a conventional ASD. In this paper, the input currents of the EI-based ASD are investigated and compared with the conventional ASDs with respect to interharmonics, which is an emerging power quality topic. First, the DC-link oscillations generation process is analyzed at the inverter level under balanced and unbalanced load conditions, where they are considered as main causes of the interharmonic distortions in the ASD applications. Thereafter, the key role of the EI at the DC stage is investigated in terms of high impedance and current harmonics transfer, and it is compared with the conventional passive filter performance. It is shown that the EI will reduce low-frequency oscillations coming from the load side, and consequently it will give rise to loweramplitude interharmonics in the input current of the drive. The obtained experiments and simulations for both EI-based and conventional ASD systems verify the proposed theoretical analysis in determining the line input current interharmonics.

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Section: Harmonic Transfer At Inverter Levelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance evaluation of electronic inductor based adjustable speed drives with respect to line current interharmonics

Soltani

Blaabjerg

Zare

2017

2017 IEEE Applied Power Electronics Conference and Exposition (APEC)

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“…The active power is therefore controlled to maintain the DC link capacitor voltage at its commanded value [23]. Control requirements for the low voltage DC/AC power converter are almost negligible compared to the requirements for the control of the MMC and DABs stages, and will not be further discussed in this paper.…”

Section: C) Control Of the Active Rectifier On The LV Sidementioning

confidence: 99%

Design and implementation of the control of an MMC-based solid state transformer

López

Rodríguez

Blanco

et al. 2015

2015 IEEE 13th International Conference on Industrial Informatics (INDIN)

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Abstract-Implementation of the control of a Solid State Transformer (SST) is described in this paper. The SST topology considered is derived from a Modular Multilevel Converter (MMC), in which the cells have the capability to transfer (inject or drain) power. The MMC is combined with an isolation stage formed by Dual Active Bridges (DABs) and a DC/AC power converter. The resulting modular multiport power converter can connect both high voltage and low voltage AC and DC ports, providing isolation between the high voltage and the low voltage terminals, and with full control of the power flow. Implementation of the control of this power converter is not trivial, due to the large amount of power devices and sensors involved, and to the complexity of the control algorithms. Furthermore, the need to provide isolation among the different stages adds further concerns mainly related with cost. This paper discusses the configuration, selection of the required hardware, as well as implementation aspects for the control of the proposed SST topology.

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“…Traditional diode rectifier and phase-controlled rectifier need lots of reactive power provided by power grid, which will bring serious harmonic pollution to grid, affect the grid operating safely and other electronic equipment operating normally, and the effective utilization of energy will be reduced too. PWM rectifier has many advantages such as low current harmonics of grid side, unity power factor, reversibility of energy, DC voltage controlled, and so on, which will realize the "green conversion" of energy [1][2][3][4] . PWM rectifier can solve the problem of harmonics and reactive power essentially, and has broad application prospects in the fields of high-power uninterruptible power supply, four-quadrant AC drives, traditional power system generation product, reactive power compensation, solar power generation and other areas as well as AC and DC driving system.…”

Section: Introductionmentioning

confidence: 99%

Improved Predictive Current Control for Three-Phase High Power Factor AC-DC Boost Converter

Zheng¹

2014

Proceedings of the 2014 International Conference on Mechatronics, Electronic, Industrial and Control Engineering

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Abstract-This paper presents a improved predictive current control of three-phase AC-DC PWM converter, which achieves unity power factor, harmonics elimination and DC-bus-voltage constant. This paper focuses on predictive current control strategy of which the control principle and the reason of static phase error existing in the AC side current are studied. And the paper presents improved predictive current control strategy, which solves the problem of static phase error existing in the AC side current in traditional predictive current control strategy using periodic phase information of voltage. The proposed three-phase AC-DC PWM converter was tested both in simulations and experiments. Results have proved excellent performance and verify the validity of the control system.

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The Essence of Three-Phase PFC Rectifier Systems—Part I

Cited by 649 publications

References 47 publications

Performance evaluation of electronic inductor based adjustable speed drives with respect to line current interharmonics

Performance evaluation of electronic inductor based adjustable speed drives with respect to line current interharmonics

Design and implementation of the control of an MMC-based solid state transformer

Improved Predictive Current Control for Three-Phase High Power Factor AC-DC Boost Converter

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