DSP-based current sharing of average current controlled two-cell interleaved boost power factor correction converter

Genç, Naci; İskender, İres

doi:10.1049/iet-pel.2010.0349

Cited by 70 publications

(41 citation statements)

References 9 publications

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“…If the duty of S 1 can be controlled to follow (14), the buck-boost type charger can be operated as a resistor to achieve a unity power factor. The real power injected into the buck-boost type charger can be regulated by k' to control the charging power of the battery set.…”

Section: B Integrated Boost/buck Power Convertermentioning

confidence: 99%

“…Although the size of the high-frequency transformer is small, it will result in an extra power loss and it will increase the voltage rating of the power electronic switch. The power factor corrector, which is configured by a diode rectifier and a boost converter, can solve the problem of zero-crossing distortion [9]- [14]. The input current will be sinusoidal and in phase with the input AC voltage to achieve a unity power factor.…”

Section: Introductionmentioning

confidence: 99%

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A Buck-Boost Type Charger with a Switched Capacitor Circuit

Wu¹,

Jou²,

Tsai³

2015

Journal of Power Electronics

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In this paper, a buck-boost type battery charger is developed for charging battery set with a lower voltage. This battery charger is configured by a rectifier circuit, an integrated boost/buck power converter and a switched capacitors circuit. A boost power converter and a buck power converter sharing a common power electronic switch are integrated to form the integrated boost/buck power converter. By controlling the common power electronic switch, the battery charger performs a hybrid constant-current/constant-voltage charging method and gets a high input power factor. Accordingly, both the power circuit and the control circuit of the developed battery charger are simplified. The switched capacitors circuit is applied to be the output of the boost converter and the input of the buck converter. The switched capacitors circuit can change its voltage according to the utility voltage so as to reduce the step-up voltage gain of the boost converter when the utility voltage is small. Hence, the power efficiency of a buck-boost type battery charger can be improved. Moreover, the step-down voltage gain of the buck power converter is reduced to increase the controllable range of the duty ratio for the common power electronic switch. A prototype is developed and tested to verify the performance of the proposed battery charger.

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Section: B Integrated Boost/buck Power Convertermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Buck-Boost Type Charger with a Switched Capacitor Circuit

Wu¹,

Jou²,

Tsai³

2015

Journal of Power Electronics

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“…Even though the design of the resulting converter becomes flexible according to required power levels, current sharing among the cells may be compromised due to eventual inherent differences regarding the semiconductor elements and inductors used in the multiple phases, while the mismatch in duty cycle (Genc & Iskender, 2011a) must be taken into account. To solve this inconvenient, many duty cycle matching methods have been proposed so far, so that each cell shares the load current equally and stably (Genc & Iskender, 2011b;Kelly, 2009;Qahouq, 2010;Qahouq, Huang, & Huard, 2008a, 2008b.…”

Section: Interleaved Boost Rectifiermentioning

confidence: 99%

Comprehensive review of high power factor ac-dc boost converters for PFC applications

Pereira

Silva

et al. 2014

International Journal of Electronics

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High power factor rectifiers have been consolidated as an effective solution to improve power quality indices in terms of input power factor correction, reduction in the total harmonic distortion of the input current and also regulated dc voltages. Within this context, this subject has motivated the introduction of numerous converter topologies based on classic dc-dc structures associated with novel control techniques, thus leading to the manufacturing of dedicated integrated circuits that allow high input power factor by adding a front-end stage to switch-mode converters. In particular, boost converters in continuous current mode (CCM) are widely employed since they allow obtaining minimised electromagnetic interference levels. This work is concerned with a literature review involving relevant ac-dc single-phase boost-based topologies with high input power factor. The evolution of aspects regarding the conventional boost converter is shown in terms of improved characteristics inherent to other ac-dc boost converters. Additionally, the work intends to be a fast and concise reference to single-phase ac-dc boost converters operating in CCM for engineers, researchers and experts in the field of power electronics by properly analysing and comparing the aforementioned rectifiers.

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“…As mentioned above, a boost converter associated with a coupled inductor is adopted in this research as the dc/dc converter, as shown in Figure 2. In order to further increase the powering capability of the converter, boost converters with interleaved manner have been proposed by several authors [26][27][28][29], as shown in Figure 3. …”

Section: Introductionmentioning

confidence: 99%

A Photovoltaic Power System Using a High Step-up Converter for DC Load Applications

Tseng

Wang

2013

Energies

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This paper presents a power system using a high step-up converter for dc load applications. The high step-up converter adopts a boost converter with interleaved mode and a coupled inductor to raise its powering ability and increase its step-up voltage ratio, respectively. In order to increase conversion efficiency, an active clamp circuit is introduced into the proposed one to provide soft-switching features to reduce switching losses. Moreover, switches in the converter and active clamp circuit are integrated with a synchronous switching technique to reduce circuit complexity and component counts, resulting in a lower cost and smaller volume. A perturb and observe method is adopted to extract the maximum power from photovoltaic (PV) arrays. Furthermore, a microchip associated with PWM IC is used to implement maximum power point tracking operation, voltage regulation and power management. Finally, a prototype PV power system with 400 V/6 A has been implemented for verifying the feasibility of the proposed PV power system. It is shown to be suitable for PV energy conversion applications when the duty ratios of switches in the dc/dc converter are less than 0.5.

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DSP-based current sharing of average current controlled two-cell interleaved boost power factor correction converter

Cited by 70 publications

References 9 publications

A Buck-Boost Type Charger with a Switched Capacitor Circuit

A Buck-Boost Type Charger with a Switched Capacitor Circuit

Comprehensive review of high power factor ac-dc boost converters for PFC applications

A Photovoltaic Power System Using a High Step-up Converter for DC Load Applications

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