An Interlinking Converter for Renewable Energy Integration Into Hybrid Grids

Tang, Zhongting; Yang, Yongheng; Blaabjerg, Frede

doi:10.1109/tpel.2020.3018585

Cited by 31 publications

(12 citation statements)

References 15 publications

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“…a turns ratio does not link p and s phase arms. Consequently, the power rating of the converter-side center-tapped winding depends on the choice of modulated ac arm voltage, Varm , for a given G v , as represented by k in (10). More discussions on this design consideration will be included as part of the comparative analysis in the subsequent sections.…”

Section: B Power Processing Characteristics Of Topologies With Multit...mentioning

confidence: 99%

Comparative Assessment of Multi-Port MMCs for High-Power Applications

Kish

2022

IEEE Access

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Multi-port converters can interconnect different dc and ac systems while reducing semiconductor requirements and losses by eliminating redundant power conversion stages. Modular multilevel converter (MMC)-based multiport systems are well suited for application in mixed ac-dc grids containing high-voltage dc (HVDC) and medium-voltage dc (MVDC) systems. This paper conducts a detailed comparative assessment of multi-port dc-dc-ac MMCs for high power applications. Four representative topologies are chosen for study due to their contrasting internal power processing characteristics. Three different network scenarios are investigated that include HVDC and MVDC applications, covering several different power flow cases. The multi-port MMCs are compared in terms of losses, semiconductor effort, internal energy storage and magnetics requirements. The results are extensively discussed and general conclusions are summarized. INDEX TERMS Ac and dc grids, dc-dc modular multilevel converter, multi-port converter.NOMENCLATURE

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Section: B Power Processing Characteristics Of Topologies With Multit...mentioning

confidence: 99%

Comparative Assessment of Multi-Port MMCs for High-Power Applications

Kish

2022

IEEE Access

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“…The zero sequence current references for the two inverters are set to be minus one sixth , . The required , can be calculated from (2). The references of the two inverters are always kept equal to facilitate DC flux cancellation.…”

Section: Control Strategymentioning

confidence: 99%

Multiport Converter With Enhanced Port Utilization Using Multitasking Dual Inverters

Perera

Salmon

Kish

2021

IEEE Open J. Power Electron.

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With the development of renewable energy and electric vehicle technologies, a need for multiport DC/DC/AC converters with high power density and reliability has arisen. A dual inverter based bidirectional multiport converter with two dissimilar voltage DC ports and an AC port is presented. The converter is capable of processing up to 1.67, 1.41 and 1 p.u. of power through its main DC, auxiliary DC and AC ports respectively, while only using the semiconductor and magnetics effort of a DC/AC converter rated for 1 p.u. Analysis reveals that this is more than thrice and twice the power limits of the main and auxiliary DC ports respectively, compared to using two independent inverters with a three-winding transformer. Furthermore, the proposed converter is more efficient than the latter option. These benefits are due to the multitasking of inverters and the existence of single stage DC/DC and DC/AC power transfer mechanisms enabled by the use of a center tapped transformer. A control strategy using these two mechanisms, capable of independently controlling the power flows between ports is also presented. Independent inverter control is also possible, allowing power flow between the main DC and AC ports during the failure of a single inverter. These claims are verified through thorough analysis, extensive simulation and experimental results using a 3 kW prototype.

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“…It's clean and environmentally friendly, which I appreciate. A few miles below the earth's surface are hot springs and hot rock, and much further down is the molten rock known as magma,' which has extraordinarily high temperatures [38].…”

Section: Geothermal Powermentioning

confidence: 99%

Renewable Energy: Sources, Integration and Application: Review Article

Mohammed¹

2021

JERR

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Renewable technologies are technically viable and economically attractive; traditional energy technology receives many investment dollars. This study examines the integration of renewable energy sources using functions that associate emissions with power generation; traditional producing units can represent these emissions. The environment friendly design has become a significant concern in the first decade of the 21st century. As a result of climate change and a limited supply of traditional energy sources (fossil fuel), the world needs to take renewable energy seriously. Renewable sources of energy are derived from the energy flow that occurs naturally in a continual manner. Many people define renewability as the ability to regenerate at a rate equal to or faster than a given energy source's depletion rate. Currently, fossil fuels are used to meet most energy needs, which should be replaced in the future by cleaner energy sources, such as renewables or nuclear energy. Building integration systems aim to replace a building element with a solar panel array to boost the RES system's viability. Renewable energy sources can be used to lessen the use of fossil fuels when certain criteria are satisfied. The use of renewable energy sources in buildings has well-understood environmental and economic benefits in this study. By relying on sustainable sources of energy, we can save as much energy as feasible.

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An Interlinking Converter for Renewable Energy Integration Into Hybrid Grids

Cited by 31 publications

References 15 publications

Comparative Assessment of Multi-Port MMCs for High-Power Applications

Comparative Assessment of Multi-Port MMCs for High-Power Applications

Multiport Converter With Enhanced Port Utilization Using Multitasking Dual Inverters

Renewable Energy: Sources, Integration and Application: Review Article

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