Single-Phase to Single-Phase Full-Bridge Converter Operating With Reduced AC Power in the DC-Link Capacitor

Freitas, Isaac Soares de; Jacobina, Cursino B.; Santos, Euzeli Cipriano dos

doi:10.1109/tpel.2009.2031225

Cited by 64 publications

(25 citation statements)

References 26 publications

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“…The concept is based on reducing the ripple current flowing through the dc-link capacitor [7]- [12]. The front-stage converter is an active rectifier in [7]- [10], and a step-up dc-dc converter in…”

Section: )mentioning

confidence: 99%

“…Therefore, the voltage compensator ideally handles reactive power only in all of the other cases. For the special case concerned, the dc-link capacitance can be reduced by the synchronization control of the phases 1 and 2 [10].…”

Section: Proposed Module For Dc-link Capacitance Reductionmentioning

confidence: 99%

“…However, those control methods cannot be applied to systems with front-end diode-bridge rectifier. Apart from requiring a sophisticated controller, some of them also rely on specific relationship in the operating frequency between the converters connected [7], [10], and [11]. The method given in [8] is limited to three-phase systems.…”

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confidence: 99%

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Use of a Series Voltage Compensator for Reduction of the DC-Link Capacitance in a Capacitor-Supported System

Wang

Chung

2014

IEEE Trans. Power Electron.

201

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Section: )mentioning

confidence: 99%

Section: Proposed Module For Dc-link Capacitance Reductionmentioning

confidence: 99%

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Use of a Series Voltage Compensator for Reduction of the DC-Link Capacitance in a Capacitor-Supported System

Wang

Chung

2014

IEEE Trans. Power Electron.

201

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“…It can be derived that the voltage compensator processes only reactive power except for a special case when the ac components of i a and i d are of same frequency and in phase. For the special case concerned, the dc-link capacitance can be reduced by the synchronization control of the two phases as applied in [7]. …”

Section: Operation Principle Of the Voltage Compensatormentioning

confidence: 99%

Long Lifetime DC-link Voltage Stabilization Module for Smart Grid Application

Wang¹,

Chung²,

Li³

et al. 2012

9th IET International Conference on Advances in Power System Control, Operation and Management (APSCOM 2012)

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Power converters enable efficient and flexible control and conversion of electric energy among different smart grid players (i.e. producers, energy storage systems, and loads). One of the expected features of smart grid is that it will be more reliable compared to conventional grid. However, power converters are one kind of the lifetime limiting components applied in smart grid. One of the major causes is the malfunction of electrolytic capacitors (E-Caps) which are widely used for stabilizing the dc-link voltage in various types of power converters applied in smart grid. A dc-link module is therefore proposed in this paper with a reduced value of dc-link capacitor and a series voltage compensator. It allows the replacement of the popularly used E-Caps with alternatives of longer lifetime, like power film capacitors. The basic concept, implementation and operation principle of the dc-link module are given. The theoretical analysis is verified by simulation and experimental results.

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“…The traditional H-bridge cascade topology, using diodes to obtain a DC link voltage of each power cell, is not able to permit the regeneration of power from AC motor to the grid and is not applicable to some equipment, such as downhill conveyors and traction. On the other hand, Hbridge inverter in power cell generates a second harmonic DC link voltage [3], thus, large electrolytic capacitors have to be used to reduce DC link voltage fluctuation.…”

Section: Introductionmentioning

confidence: 99%

Direct Active Power Control for Regenerative Cascade Inverter with Reduced AC Power in DC Link

2014

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Original scientific paperThis paper presents a regenerative cascade inverter topology with direct active power control scheme. From the mathematical model of the proposed regenerative cascade inverter, the instantaneous active power and reactive power are derived. Based on the instantaneous abc theory, direct active power feed-forward control is proposed to reduce AC power and voltage fluctuation in DC link. Moreover, a load current full order observer is established to avoid the inconvenient of the current sensor installation. The proposed control scheme is analyzed theoretically by simulation, and verified experimentally. Key words:Regenerative cascade inverter, Direct active power control, Feed-forward control, Observer Upravljanje aktivnom snagom regenerativnog kaskadnog invertera uz smanjenje izmjenične komponente snage u istosmjernom meîukrugu. U ovome radu predstavljena je topologija regenerativnog kaskadnog invertera sa shemom direktnog upravljanja aktivnom snagom. Trenutna aktivna i reaktivna snaga dobiveni su iz matematičkog modela predloženog regenerativnog kaskadnog invertera. Na temelju abc teorije, predloženo je unaprijedno upravljanje aktivnom snagom kako bi se smanjila izmjenična komponenta snage i promjena napona u istosmjernom meîukrugu. Ugradnja senzora za mjerenje struje izbjegla se razvijanjem observera punog reda. Predložena shema upravljanja testirana je simulacijski i eksperimentalno.Ključne riječi: regenerativni kaskadni inverer, upravljanje aktivnom snagom, unaprijedno upravljanje, observer

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Single-Phase to Single-Phase Full-Bridge Converter Operating With Reduced AC Power in the DC-Link Capacitor

Cited by 64 publications

References 26 publications

Use of a Series Voltage Compensator for Reduction of the DC-Link Capacitance in a Capacitor-Supported System

Use of a Series Voltage Compensator for Reduction of the DC-Link Capacitance in a Capacitor-Supported System

Long Lifetime DC-link Voltage Stabilization Module for Smart Grid Application

Direct Active Power Control for Regenerative Cascade Inverter with Reduced AC Power in DC Link

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