New control methods for rectifier-less PFC-stages

Frank, Wolfgang; Reddig, Manfred; Schlenk, Manfred

doi:10.1109/isie.2005.1528966

Cited by 22 publications

(7 citation statements)

References 2 publications

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“…As depicted in the figure, to handle MOSFET Q 2 , the switching law (11) has to be inverted because signals i AC (t) and v AC (t) are both negative during the negative half period of the input voltage, what changes the sign of (12). For that reason, control signals have to be: ( ) …”

Section: A Sliding Surfacementioning

confidence: 99%

“…In turn, it has to be pointed out that i AC (t) input current is positive with respect to inductor L 2 during the negative half period of the input voltage and, for that reason, (12) can be rewritten as follows in terms of the state variable i Ln (t):…”

Section: A Sliding Surfacementioning

confidence: 99%

“…The existence of these undesired phenomena in case of unbalanced inductors depends on the applied current-mode control technique as it can be observed in TABLE I. Many current controllers in PFC applications operate at a constant frequency with Pulse-Width Modulation (PWM) [12][13][14], average current-mode controllers being the most popular. However, other constant frequency-based control techniques can be found, such as valley current-mode control and peak current-mode control in both continuous conduction-mode (CCM) and discontinuous conduction-mode (DCM).…”

Section: Introductionmentioning

confidence: 99%

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Loss-Free Resistor-Based Power Factor Correction Using a Semi-Bridgeless Boost Rectifier in Sliding-Mode Control

Marcos-Pastor

Vidal-Idiarte

Cid-Pastor

et al. 2015

IEEE Trans. Power Electron.

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In this work, a Loss-Free Resistor based on a semibridgeless rectifier is proposed for power factor correction applications. This particular bridgeless rectifier type is composed of two different boost cells which operate complementarily during each half-line cycle. In case of two unbalanced inductors, many control techniques can produce different inductor current ripples during each half-line cycle that can result in the addition of a DC component to the line current. This work demonstrates that the application of sliding-mode control by means of hysteretic controllers results in a 1st order stable system that can mitigate these harmful consequences due to its capability to ensure the symmetry of the line input current waveform for both positive and negative half-line cycles. Thus, the system does not absorb any DC component from the grid and it is also capable to reduce dramatically the amplitude of the 3rd harmonic. The theoretical predictions have been validated by means of PSIM simulations and experimentally on a prototype of 1 kW which has been controlled using only one sliding control surface.Index Terms -AC-DC power conversion, loss-free resistor, sliding-mode control, power factor correction, semi-bridgeless boost rectifier. P

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Section: A Sliding Surfacementioning

confidence: 99%

Section: A Sliding Surfacementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Loss-Free Resistor-Based Power Factor Correction Using a Semi-Bridgeless Boost Rectifier in Sliding-Mode Control

Marcos-Pastor

Vidal-Idiarte

Cid-Pastor

et al. 2015

IEEE Trans. Power Electron.

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“…While the body diode is conducting, the main switch, S 1 should be turned on to achieve ZVS. The current, i Lr , and the delay time, t d , are given by (10) and (11), respectively. …”

Section: Mode 4 (T 3 -T 4 )mentioning

confidence: 99%

“…However, the switching loss problem remains and this topology introduces increased EMI [7], [8]. Moreover, as the input line is floating with respect to the PFC stage ground, input voltage and current sensing is challenging [9], [10].…”

Section: Introductionmentioning

confidence: 99%

A semi-bridgeless boost power factor corrected converter with an auxiliary zero voltage switching circuit for electric vehicle battery chargers

Alam

Eberle

Musavi

2013

2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

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This paper presents a new zero-voltage switching (ZVS) semi-bridgeless ac-dc boost converter for application in plug-in hybrid electric vehicle battery chargers. The proposed auxiliary circuit enables ZVS for the main and auxiliary switches, which nearly eliminates all switching losses, enabling improved efficiency. The auxiliary circuit also helps to reduce the reverse-recovery losses of the boost diodes. The detailed operation of the proposed converter, a stress analysis of the auxiliary circuit components, and a proper design procedure are presented. The feasibility of the converter is confirmed by a simulation work operating at 70 kHz switching frequency, 240 V input, and 400 V/3.4 kW output.

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Assessment of electric vehicles concerning impacts, charging infrastructure with unidirectional and bidirectional chargers, and power flow comparisons

et al. 2018

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Summary The advancement and deployment of electric vehicle (EV) technologies are considered as an emergent solution to meet the current and future energy crises. The electrification of transportation systems is a promising approach to green the transportation systems and to reduce the issues of climate change. This paper investigates the present status, latest deployment, and challenging issues in the implementation of EV infrastructure, charging power levels, in conjunction with several charging power topologies, and analyzes EV impacts and prospects in society. In this study, the on‐board and off‐board categories of charging systems with unidirectional and bidirectional power flow comparison are addressed. Moreover, an extensive analysis of unidirectional and bidirectional chargers is presented. Unidirectional charging offers hardware limitation and reduces the interconnection issues. Bidirectional charging provides the fundamental feature of vehicle‐to‐grid technology. Furthermore, the beneficial and harmful impacts of EVs are categorized with remedial measures for harmful impacts and prolific benefits for beneficial impacts.

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New control methods for rectifier-less PFC-stages

Cited by 22 publications

References 2 publications

Loss-Free Resistor-Based Power Factor Correction Using a Semi-Bridgeless Boost Rectifier in Sliding-Mode Control

Loss-Free Resistor-Based Power Factor Correction Using a Semi-Bridgeless Boost Rectifier in Sliding-Mode Control

A semi-bridgeless boost power factor corrected converter with an auxiliary zero voltage switching circuit for electric vehicle battery chargers

Assessment of electric vehicles concerning impacts, charging infrastructure with unidirectional and bidirectional chargers, and power flow comparisons

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