Step-Up DC/DC Converters With Cascaded Quasi-Z-Source Network

Vinnikov, Dmitri; Roasto, Indrek; Strzelecki, Ryszard; Adamowicz, Marek

doi:10.1109/tie.2011.2178211

Cited by 190 publications

(126 citation statements)

References 13 publications

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“…1) [21]- [23] is one of the topological variations of a recently introduced galvanically isolated quasi-Z-source DC/DC converter (qZSC) [24]- [26]. It consists of a quasi-Zsource network, a full-bridge switching stage, a series resonant tank formed by the capacitor C r and the inductor L r , a step-up isolation transformer, and a voltage-doubler rectifier (VDR).…”

Section: Quasi-z-source Series Resonant Dc/dc Convertermentioning

confidence: 99%

Multi-mode quasi-Z-source series resonant DC/DC converter for wide input voltage range applications

Vinnikov¹,

Chub

Roasto³

et al. 2016

2016 IEEE Applied Power Electronics Conference and Exposition (APEC)

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This paper examines the quasi-Z-source series resonant DC/DC converter as a candidate topology for the PV module integrated converter (MIC) with an extended input voltage regulation range. The converter features multi-mode operation by combining the shoot-through pulse-width modulation and ordinary phase-shift modulation to realize the boost and buck operating modes, respectively. Our experiments confirmed that the proposed MIC is capable of ensuring the ripple-free output voltage of 400 V within the input voltage range of 10…60 V. In contrast to the traditional series resonant converter, the MIC proposed is characterized by fixed-frequency operation over the entire range of input voltage variations. It requires only generic semiconductor devices and thus is a costeffective solution.

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Section: Quasi-z-source Series Resonant Dc/dc Convertermentioning

confidence: 99%

Multi-mode quasi-Z-source series resonant DC/DC converter for wide input voltage range applications

Vinnikov¹,

Chub

Roasto³

et al. 2016

2016 IEEE Applied Power Electronics Conference and Exposition (APEC)

Self Cite

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“…1.8. The compensator arrangement in a system employing a quasi-Z-source-based isolated DC/DC converter [52,53] is presented in Fig. 5.47.…”

Section: Compensator For Dc/dc Convertermentioning

confidence: 99%

Compensation of Interference Sources Inside Power Electronic Interfaces

Smoleński

2012

Conducted Electromagnetic Interference (EMI) in Smart Grids

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The most suitable way, to eliminate simultaneously all side effects connected with the application of power electronic converters in Smart Grid systems, is the compensation of the interference sources inside of the power electronic interface. In such situation the compensation of the interference sources prevents both the spreading of the interference over extensive circuits and the uncontrolled aggregation of the interference generated by a group of converters, facilitating development of the compatible system. CM Compensator for InvertersThe CM voltage source cancellation in inverter-fed systems [25] can be done using active [54] as well as the passive CM voltage compensators proposed by 37,38]. Compensation in the active series filter is realized by the addition of the common mode voltage of the opposite polarity to each phase. It has been realized using the emitter follower (T 1 , T 2 ). The common mode voltage is detected on Y -connected capacitors (C det ) and added to the phase voltages by a common mode transformer, Fig. 5.1.The equivalent circuit for CM component is presented in Fig. 5.2. The series compensation is realized by addition of the compensating voltage U C by means of the CM adding transformer fed by the voltage-controlled voltage source.The original arrangement proposed by Ogasawara and Akagi for CM voltage, bearing voltage and bearing current elimination was designed using bipolar transistors for a 3 × 200 V, 60 Hz supply of a frequency converter. Each transistor of the emitter follower has to operate under full DC-link voltage conditions (282 V) [38].In the presented investigations the concept of the series active filter for a 3×400 V,

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“…However, a limitation in the voltage-gain of these converters with Z source and quasi-Z source networks has been found in high voltage-gain applications. In order to improve the voltage-gain of the Boost DC-DC converters with the Z source network further, a hybridization of the Z source converter has been proposed in [19] and [20]. Alternatively, a combination of a quasi-Z source network and a switched-inductor has been proposed in [21], as well as a combination of the quasi-Z source network and a coupled-inductor in [22].…”

Section: Introductionmentioning

confidence: 99%