A Single-Stage Two-Switch PFC Rectifier With Wide Output Voltage Range and Automatic AC Ripple Power Decoupling

Li, Sinan; Qi, Wenlong; Tan, Siew‐Chong; Hui, S. Y. Ron

doi:10.1109/tpel.2016.2622980

Cited by 54 publications

(37 citation statements)

References 25 publications

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“…In the simultaneous operation of DC voltage regulation and harmonic cancellation, (19) can be used to calculate V th by combining (13) and (17). Fig.…”

Section: Determination Of the Minimum Capacitance For Harmonic Smentioning

confidence: 99%

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Hybrid-DC Electric Springs for DC Voltage Regulation and Harmonic Cancellation in DC Microgrids

Wang

Yan

Tan

2018

IEEE Trans. Power Electron.

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NOMENCLATURE ∆dDifference between D p and D n ω Angular frequency of the harmonic power.Output capacitor of the H-DCES. C min Minimum required capacitance of C 1 and C 2 . d ml Lower margin of the duty ratio. Energy of capacitor C 1 . f HP F Cut-off frequency of the high-pass filter G HP F . f LP F Cut-off frequency of the low-pass filter G LP F . G HP F Transfer function of the high-pass filter.Transfer function of the proportional-integral controller. G P R Transfer function of the quasi-proportional-resonant controller. I coCurrent of the non-critical load R N C .i max cMaximum current of the DC-link capacitor whenCurrent disturbances in the DC grid.Current of the inductor L N C . I sm Current flowing through the H-DCES. I tb Current flowing through the battery.Output filter inductor for the harmonic current. Voltage of the capacitor C 1 . Z sys Impedance of the DC grid.In this paper, unless otherwise noted, the capitalized variables with lower-case subscripts denote the combination of DC and AC signals, while the all-uppercase and all-lowercase variables 0885-8993 (c)

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“…In the simultaneous operation of DC voltage regulation and harmonic cancellation, (19) can be used to calculate V th by combining (13) and (17). Fig.…”

Section: Determination Of the Minimum Capacitance For Harmonic Smentioning

confidence: 99%

“…The other approach is to deploy dedicated power converters for power conditioning. Both series APF [16] and shunt APFs in different topologies (buck [17], buck-boost [18], [19] and isolated converter [20]) have been reported. These solutions guarantee a sufficient redundancy for the system.…”

Section: Introductionmentioning

confidence: 99%

Hybrid-DC Electric Springs for DC Voltage Regulation and Harmonic Cancellation in DC Microgrids

Wang

Yan

Tan

2018

IEEE Trans. Power Electron.

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“…PWM1 signal is generated by the one shot module in block (i) and remains at high level until a period of T on . Unlike the conventional constant-ON-time control, which has a fixed and preset value of T ON , here T ON is adaptively updated according to (7) in order to ensure a relatively fixed switching frequency 1/T s , despite the change of V IN (and hence the name adaptive constant-ON-time control). It should be noted that T ON is updated on a cycle-by-cycle manner with the sensed V o and V IN information, as described in Fig.…”

Section: B Steady-state Analysismentioning

confidence: 99%

“…ompared to the conventional lighting sources (e.g., halogen and Xenon), high-brightness light-emitting-diodes (LEDs) have become preferable solutions in the automotive Besides high power density, high energy efficiency, low cost, current sharing, and high reliability, which are typically needed for general lighting applications [5]- [7], the design of an automotive LED driver requires several special design considerations:…”

Section: Introductionmentioning

confidence: 99%

Topology-Transition Control For Wide-Input-Voltage-Range Efficiency Improvement and Fast Current Regulation in Automotive LED Applications

Qin

Hui

2017

IEEE Trans. Ind. Electron.

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Abstract-Automotive LED drivers require special design considerations, which includes voltage step-up and -down function, high energy efficiency and fast current reference tracking capability. Unlike the conventional efficiency improvement methods, which is based on cumbersome circuit/component optimization and/or modification for a single operating point, this paper proposes a simple approach based on topology transition which can achieve a high efficiency for a wide input voltage range. In particular, the topology of the LED driver can change between buck, boost and buck-boost converter according to the level of the input voltage. In addition, a novel current mode controller is proposed such that (i) compatibility to different topologies (ii) seamless topology transition and (iii) fast current reference tracking can be concurrently achieved. The feasibilities of the proposed topology transition method and its control has been experimentally verified through a four-switch buck-boost converter prototype with 7 -45 V input, 25 V/1 A LED strings output. It is shown that there is more than 5% efficiency improvement as compared to the conventional four-switch buck-boost converter. Full range (0%-100%) and precise (1% dimming precision) PWM dimming has also been demonstrated. Index Terms-Automotive LED lighting, non-inverting four switch buck-boost converter, PWM dimming, topology transition control.

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“…Recently, inductor-multiplexing method for a buck-boost converter that solves these problems has been proposed [17]. One inductor is commonly used for converter and decoupling operation to reduce the number of inductors.…”

Section: Introductionmentioning

confidence: 99%

A new active power‐decoupling topology and control mechanism to extend the lifespan and reduce the number of passive components

Hwang

Ogasawara

Orikawa

et al. 2019

IEEJ Transactions Elec Engng

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In this article, a new active power-decoupling (APD) circuit without an additional discharging inductor is proposed for single-phase power systems. In an APD circuit, a small film capacitor is used to extend the lifespan and remove ripple power derived from power systems. However, to manipulate power pulsation, additional circuits such as inductors, capacitors, and switches are required, which increase the manufacturing cost and parametric uncertainties. In the proposed circuit, rectification and a decoupling function are conducted on a coupled-inductor at the same time to reduce the number of passive elements. Furthermore, a sliding mode control is used to ensure stable operation under parameter variation and disturbance. A design example is presented and the operation of the proposed topology is also verified with a simulation study and experimental results. The results show that the proposed APD method was able to remove passive components and reduce the withstand voltage of a buffer capacitor and insulated gate bipolar transistors (IGBT) while ensuring that both the input current and output voltage of the converter were well regulated under load variation.

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A Single-Stage Two-Switch PFC Rectifier With Wide Output Voltage Range and Automatic AC Ripple Power Decoupling

Cited by 54 publications

References 25 publications

Hybrid-DC Electric Springs for DC Voltage Regulation and Harmonic Cancellation in DC Microgrids

Hybrid-DC Electric Springs for DC Voltage Regulation and Harmonic Cancellation in DC Microgrids

Topology-Transition Control For Wide-Input-Voltage-Range Efficiency Improvement and Fast Current Regulation in Automotive LED Applications

A new active power‐decoupling topology and control mechanism to extend the lifespan and reduce the number of passive components

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