Reconsideration of Grid-Friendly Low-Order Filter Enabled by Parallel Converters

Quan, Zhongyi; Li, Yunwei; Pan, Yiwei; Jiang, Changpeng; Yang, Yongheng; Blaabjerg, Frede

doi:10.1109/jestpe.2020.3009056

Cited by 12 publications

(2 citation statements)

References 52 publications

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“…The multifunctional CCC technique is illustrated in Figure 1. CCCs have been widely used in different applications of grid-tied power converters, such as active power filters [35,36], and for the grid integration of intermittent renewable energy sources, such as wind and solar energy [37][38][39][40][41]. More recently, power converters able to perform both of the mentioned functions have been reported in the literature and have been called multifunctional converters [28,[42][43][44].…”

Section: Multifunctional CCC Controlmentioning

confidence: 99%

A Detailed Assessment of the Power Quality Improvement of an Islanded AC Microgrid through Upgrading Conventional Grid-Feeding Current-Controlled Converters to Operate as Multifunctional Converters

Manrique Machado,

Neves,

da Silva

et al. 2023

Sustainability

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The decarbonization of the global economy is one of society’s urgent objectives nowadays. Thus, the large-scale adoption of renewable energy sources, like solar and wind energy, seems to be the best pathway to achieving sustainable development. Thus, the microgrid concept has emerged as a solution to address concerns related to the intermittent nature and lack of inertia for such sources. Several studies involving microgrids have been published in the last few years. However, in most of them, power quality (PQ) disturbances and strategies to manage such disturbances are not considered, especially in the islanded operation mode. Hence, in this paper, a detailed assessment of the PQ of an islanded AC microgrid is conducted, considering the coexistence of a nonlinear load, voltage-controlled converters, and a current-controlled converter (CCC). The analyses consider two scenarios, depending on the operation mode of the CCC: (1) the CCC operating as a conventional grid-feeding converter and (2) considering a cost-effective upgrading of the conventional CCC to operate as a multifunctional converter. An experimental test bed is built to validate both scenarios. The presented results provide strong evidence that the AFF significantly improves the microgrid PQ and its suitability for dealing with PQ disturbances in real-world applications.

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Section: Multifunctional CCC Controlmentioning

confidence: 99%

A Detailed Assessment of the Power Quality Improvement of an Islanded AC Microgrid through Upgrading Conventional Grid-Feeding Current-Controlled Converters to Operate as Multifunctional Converters

Manrique Machado,

Neves,

da Silva

et al. 2023

Sustainability

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show abstract

“…Leveraging the interleaving modulation schemes, the LCL filter can be replaced by an L filter in each converter without increasing filter size. This naturally eliminates the resonance issues caused by the parallel LCL filters and, thus, can be a promising system design approach for future heavy-duty electric earthmoving equipment [123].…”

Section: B Low-voltage Drivementioning

confidence: 99%

A Survey of Powertrain Technologies for Energy-Efficient Heavy-Duty Machinery

Quan

Wei

et al. 2021

Proc. IEEE

Self Cite

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This article presents a comprehensive, multidisciplinary overview of the development of powertrain technologies for energy-efficient heavy-duty earthmoving machines. The heavy-duty earthmoving equipment industry has been among the biggest contributors to emissions globally. However, due to high power demand and multidisciplinary powertrain structures, improving the energy efficiency of heavy-duty mobile machines has been a pressing and challenging task in the industry. To cope with this challenge, hydraulics and power electronics (PE) have been the key driving forces. As such, the relative developments in both fields are covered in this article. For hydraulics, developments of efficient hydraulic circuits will be overviewed in detail along with the introduction of hydraulic energy recovery technologies.In addition, developments of PE architectures in hybrid and electrified machines will be introduced. Furthermore, potential medium-voltage dc mining site power distribution and the valves of wide bandgap devices will also be discussed with the Manuscript

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Prospects for purely electric construction machinery: Mechanical components, control strategies and typical machines

Huang,

Yan,

Cao

et al. 2024

Automation in Construction

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Reconsideration of Grid-Friendly Low-Order Filter Enabled by Parallel Converters

Cited by 12 publications

References 52 publications

A Detailed Assessment of the Power Quality Improvement of an Islanded AC Microgrid through Upgrading Conventional Grid-Feeding Current-Controlled Converters to Operate as Multifunctional Converters

A Detailed Assessment of the Power Quality Improvement of an Islanded AC Microgrid through Upgrading Conventional Grid-Feeding Current-Controlled Converters to Operate as Multifunctional Converters

A Survey of Powertrain Technologies for Energy-Efficient Heavy-Duty Machinery

Prospects for purely electric construction machinery: Mechanical components, control strategies and typical machines

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