Optimal Power Flow Modelling and Analysis of Hybrid AC-DC Grids with Offshore Wind Power Plant

Dhua, Debasish; Huang, Shaojun; Wu, Qiuwei

doi:10.1016/j.egypro.2017.11.076

Cited by 13 publications

(3 citation statements)

References 14 publications

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“…These could be small islands or any other case of distant and remote areas, which may be connected to each other or with the robust grid of the mainland through underground or underwater DC cables. Other types of locations could also be remote wind generation parks, built either on islands or offshore [38].…”

Section: Main Applications Of Ac/dc Hybrid Smart Microgridsmentioning

confidence: 99%

A Review on the Driving Forces, Challenges, and Applications of AC/DC Hybrid Smart Microgrids

Fotopoulou¹,

Rakopoulos²,

Stergiopoulos³

et al. 2023

Smart Grids Technology and Applications

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The majority of Medium Voltage (MV) and Low Voltage (LV) power systems are based on and operate using Alternating Current (AC) infrastructures. Yet, modern energy market needs, which promote more decentralized concepts with a high Renewable Energy Sources (RES) penetration rate and storage integration, bring Direct Current (DC) to the forefront. In this sense, AC/DC hybrid smart microgrids constitute a newly-introduced research field with a variety of potential applications that combine the benefits of both AC and DC systems. The purpose of this chapter is to review the advantages and disadvantages of AC/DC hybrid grids and analyze potential applications that would benefit from such infrastructures. Also, the most significant efforts and requirements for the constitution of a solid regulatory framework for AC/DC hybrid grids are presented, to pave the way towards their wider adoption by the market.

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Section: Main Applications Of Ac/dc Hybrid Smart Microgridsmentioning

confidence: 99%

A Review on the Driving Forces, Challenges, and Applications of AC/DC Hybrid Smart Microgrids

Fotopoulou¹,

Rakopoulos²,

Stergiopoulos³

et al. 2023

Smart Grids Technology and Applications

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“…This period (∆t = (1 -Da)Ts/2) has 3 distinct slopes defined by (5), (7), and (9). Co4 can be determined by reordering (30) and integrating both sides as follows: (33) The lowest value of the output capacitors may be obtained by equation (31) as Co4 = Co5 > 20 𝜇F, for ∆VCo4 < 0.05*100 V, Dm = 1, Dph = 0.5, and Da = 0.84.…”

Section: Designing Of the Output Capacitormentioning

confidence: 99%

A Novel Isolated AC to DC Power Factor Corrector Rectifier with Higher Switching Frequency

Gupta¹,

Bhargava²

2022

IJSREM

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The primary aim of this research paper is to design a novel low-cost ac-dc power rectifier for improving power factor and total harmonic distortion with higher switching frequency topology using fewer switches on its secondary side. This modified topology converts ac to dc power maintaining the criteria of international power conversion standards. Due to high currents on the low-voltage side and expensive prices, conventional rectifiers have considerable conduction losses, especially when multiple active devices are used in any form either in series, parallel or in combination to attain high voltage and high power levels. The suggested methodology substitutes traditional three-level converters on the secondary side with only two switches and four diodes while retaining its core converter operation. The simulation is performed in the MATLAB2019b environment. Keywords- Isolated AC-DC rectifier, lossless switching, ZVS and ZCS, solid-state transformer converter.

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“…In this case, the AC line between bus 5 and 7 is replaced by the direct current line, the converters and two DC buses. To implement the HVDC line, the DC conductance matrix G DC is included with AC conductance matrix G AC in the grid data section; the terminal DC bus voltages (for Bus 9 and 10) E 9 and E 10 are included with pure AC-grid state variable vectors with suitably implementing the AC-DC conversion equations though VSCs as elaborated in [17], [18]. The only changes made in the objective function is the higher wind power production together with the new load data as indicated in Table III.…”

Section: System Overview and Optimizationmentioning

confidence: 99%

Voltage Support in Hybrid AC-DC Grid by Wind Power Plants and VSC

Döring¹,

Dhua²,

Huang³

et al. 2018

IJEETC

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Optimal Power Flow Modelling and Analysis of Hybrid AC-DC Grids with Offshore Wind Power Plant

Cited by 13 publications

References 14 publications

A Review on the Driving Forces, Challenges, and Applications of AC/DC Hybrid Smart Microgrids

A Review on the Driving Forces, Challenges, and Applications of AC/DC Hybrid Smart Microgrids

A Novel Isolated AC to DC Power Factor Corrector Rectifier with Higher Switching Frequency

Voltage Support in Hybrid AC-DC Grid by Wind Power Plants and VSC

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