Interleaved Soft-Switching Boost Converter for Photovoltaic Power-Generation System

Jung, Duk Young; Ji, Yongsung; Park, Sang Hoon; Jung, Yong-Chae; Won, Chung-Yuen

doi:10.1109/tpel.2010.2090948

Cited by 162 publications

(49 citation statements)

References 18 publications

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“…Power Video Converter, Total Video Converter and other common software are good audio extraction tools, and they can easily extract audio information from video file [9].…”

Section: B Audio/video Information Separation Methodsmentioning

confidence: 99%

Application of Courseware Based on Information Retrieval Technology

Wang

Shen

2016

Int. J. Emerg. Technol. Learn.

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Abstract-distance teaching has become one of the important approaches for people to acquire knowledge. However, due to time limit, it is very difficult for people to spare much time from work and life on distance teaching. Besides, there are numerous employees who have mastered some knowledge in their fields, so it is unnecessary to complete all courses of distance teaching. Thus, retrieval knowledge acquisition becomes very crucial. The author proposed a courseware teaching system with retrieval function which effectively solves courseware retrieval, based on multimedia information such as image, audit and video. The author applied this system in actual teaching of "Sports Psychology" course. This course gained favorable teaching effect, and improved students' learning efficiency and learning effect as well as their initiative and enthusiasm for acquiring knowledge.

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“…Power Video Converter, Total Video Converter and other common software are good audio extraction tools, and they can easily extract audio information from video file [9].…”

Section: B Audio/video Information Separation Methodsmentioning

confidence: 99%

Application of Courseware Based on Information Retrieval Technology

Wang

Shen

2016

Int. J. Emerg. Technol. Learn.

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“…2. Proposed soft switching boost converter in [9] After turning on the switch under ZCS condition, the resonant inductor current increases linearly and main diode current decreases. If this current becomes the same as the current of the main inductor L 1 , the current of the output side diode becomes zero and turns off.…”

Section: Operation Of Selected Soft-switching Boost Convertersmentioning

confidence: 99%

“…Case B Fig. 2, shows another soft-switching boost converter for photovoltaic power generation system [9]. One inductor (L 2 ), two capacitor (C r1 and C r2 ) and two diodes (D 1 and D 2 ) are added to the conventional boost converter circuit.…”

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confidence: 99%

An Overview to Soft-Switching Boost Converters for Photovoltaic

Abdi¹,

Safaei²,

Moghani³

et al. 2013

IJCEE

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Abstract-In this paper, four different topologies of soft-switching boost converter using a simple auxiliary resonant circuit for solar power system are reviewed. These converters have simple structure, low cost and ease of control and are applicable for photovoltaic applications. Also, these topologies raise efficiency and, minimize switching losses by adopting soft-switching method using resonance. As we know efficiency, number of components and, voltage and current stresses are effective in selecting the converter for different applications. Therefore we need to choose the optimal boost converter considering above indexes. Efficiency, number of components and voltage and current stresses of these soft-switching boost converters have been compared in this paper to choose the optimal converter for photovoltaic application.Index Terms-Soft-switching, boost converter, photovoltaic, comparison. I. INTRODUCTIONRecently, Photovoltaic (PV) energy has attracted interest as a next generation energy source. It is capable of solving the problems of global warming and energy exhaustion caused by increasing energy consumption. The output voltage and power of the solar cell is easily changed by the surrounding conditions such as irradiation and temperature. So, a switching mode converter usually is used maximum power point tracking between solar cells and output inverter. Boost is the most simple and popular topology. Nonisolated DC-DC conversion applications like photovoltaic (PV) grid-connected power systems, electric vehicles (EV), fuel cells, uninterruptible power supplies (UPS), and high-intensity-discharge (HID) lamps for automobile headlamps call for high-performance step-up techniques [1,2]. The common approach to these applications is a classical boost converter having simple structure, continuous input current, and clamped switch voltage stress to the output voltage.Several kinds of soft-switching PWM converters, have been proposed in recent years trying to reduce switching losses, diode reverse recovery current, and the electromagnetic interference (EMI) noise of the pulse width modulation (PWM) controlled converters [3], [4]. Passive methods use only resonant inductors, capacitors, and diodes to achieve soft switching at turn-on and turn-off of the switches. Active methods use resonant inductors, capacitors, diodes, and auxiliary active switches to reduce switching loss due to main power switches. Recently, zero-voltage/current transition (ZVT/ZCT) PWM converters are proposed in addition to traditional zero voltage/current switching (ZVS/ZCS), which diminish voltage/current stresses of the main switch and achieve the soft switching of the main switch [5], [6].However, the auxiliary circuit for resonance increases the complexity of the circuit, as well as its cost. For some resonant converters with an auxiliary switch, the main switch enables soft-switching, while the auxiliary switch performs hard switching. These converters cannot improve the whole system's efficiency owning to the switching losses of the auxil...

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“…Therefore, the switching power losses cannot be set to zero in these approaches. To address this drawback, some converters have been proposed in [19]- [24]. In these approaches, the problems mentioned above are not encountered, and the main switches can be turned on and off with soft switching techniques.…”

Section: Introductionmentioning

confidence: 99%

Analysis, Design, and Implementation of a Zero-Voltage-Transition Interleaved Boost Converter

Tınğ¹,

Şahin²,

Aksoy³

2017

Journal of Power Electronics

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This study proposes a novel zero voltage transition (ZVT) pulse width modulation (PWM) DC-DC interleaved boost converter with an active snubber cell. All the semiconductor devices in the converter turn on and off with soft switching to reduce the switching power losses and improve the overall efficiency. Through the interleaved approach, the current stresses of the main devices and the ripple of the output voltage and input current are reduced. The main switches turn on with ZVT and turn off with zero voltage switching (ZVS). The auxiliary switch turns on with zero current switching (ZCS) and turns off with ZVS. In addition, the snubber cell does not create additional current or voltage stress on the main switches and main diodes. The proposed converter can smoothly achieve soft switching characteristics even under light load conditions. The theoretical analysis and operating stages of the proposed converter are made for the D > 50% and D < 50% modes. Finally, a prototype of the proposed converter is implemented, and the experimental results are given in detail for 500 W and 50 kHz. The overall efficiency of the proposed converter reached 95.5% at nominal output power.

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Interleaved Soft-Switching Boost Converter for Photovoltaic Power-Generation System

Cited by 162 publications

References 18 publications

Application of Courseware Based on Information Retrieval Technology

Application of Courseware Based on Information Retrieval Technology

An Overview to Soft-Switching Boost Converters for Photovoltaic

Analysis, Design, and Implementation of a Zero-Voltage-Transition Interleaved Boost Converter

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