SBO-based selective harmonic elimination for nine levels asymmetrical cascaded H-bridge multilevel inverter

Mostafa, M.A.I.; Abdou, Ahmed; El-Gawad, Amal F. Abd; El-Kholy, E. E.

doi:10.1080/1448837x.2018.1528732

Cited by 12 publications

(8 citation statements)

References 18 publications

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“…The three-stage conversion topology shown in Figure 1c was presented in [1,[27][28][29][30][31]. The first stage utilizes an AC/DC rectifier aimed at regulating the voltage across the HV DC link, shaping the input current [30,32], and achieving bi-directional power flow and reactive power compensation [33] as well as harmonic elimination [34][35][36]. While the second stage includes a high frequency, the DAB is required to regulate the active power flow, provide galvanic isolation, and control the voltage at the LV DC bus [33].…”

Section: Solid State Transformer Topologiesmentioning

confidence: 99%

Solid State Transformers Topologies, Controllers, and Applications: State-of-the-Art Literature Review

2018

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With the global trend to produce clean electrical energy, the penetration of renewable energy sources in existing electricity infrastructure is expected to increase significantly within the next few years. The solid state transformer (SST) is expected to play an essential role in future smart grid topologies. Unlike traditional magnetic transformer, SST is flexible enough to be of modular construction, enabling bi-directional power flow and can be employed for AC and DC grids. Moreover, SSTs can control the voltage level and modulate both active and reactive power at the point of common coupling without the need to external flexible AC transmission system device as per the current practice in conventional electricity grids. The rapid advancement in power semiconductors switching speed and power handling capacity will soon allow for the commercialisation of grid-rated SSTs. This paper is aimed at introducing a state-of-the-art review for SST proposed topologies, controllers, and applications. Additionally, strengths, weaknesses, opportunities, and threats (SWOT) analysis along with a brief review of market drivers for prospective commercialisation are elaborated.

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Section: Solid State Transformer Topologiesmentioning

confidence: 99%

Solid State Transformers Topologies, Controllers, and Applications: State-of-the-Art Literature Review

2018

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“…3. Three-Stage: Three-stage topology shown in Figure 6 utilizes HVDC as well as LVDC link, HVAC is supplied to the AC-DC rectifier stage, which offers various advantages including voltage regulation across HVDC link, bi-directional power flow, VAr compensation, [58] and harmonic filtering by achieving more sinusoidal wave shape [59][60][61]. In the second stage, DC is converted to high-frequency AC to be stepped down through a highfrequency transformer and be converted back to DC by utilizing the Double Active Bridge (DAB).…”

Section: Acmentioning

confidence: 99%

Solid-State Transformers: Fundamentals, Topologies, Applications, and Future Challenges

et al. 2021

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Solid-state transformers (SSTs) have emerged as a superior alternative to conventional transformers and are regarded as the building block of the future smart grid. They incorporate power electronics circuitry and high-frequency operation, which allows high controllability and enables bi-directional power flow, overcoming the limitations of conventional transformers. This paper presents a detailed analysis of the solid-state transformer, expounding the fundamentals, converter topologies, applications, and future challenges of the SST in a systematic manner. The paper discusses the necessity of improved replacement of the low-frequency transformers (LFTs) and presents the configuration of SST. It presents SST fundamentals in individual stages and explores its origin and evolution. The basic topologies, their specifications, and control strategies are also described. The applications of SST as a replacement of LFTs are discussed along with recent applications. The future challenges for real-time implementation of SSTs are explored, and research directions are proposed.

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“…The satin bower bird optimization algorithm is one type of algorithm that simulates the life of a type of satin bower bird [71]. Bowerbirds during autumn and winter, will leave forest habitat and move to open forests to find food.…”

Section: Satin Bowerbird Optimizer (Sbo)mentioning

confidence: 99%

“…During the season they will make different materials such as flowers, fruits, shiny objects, branches, and dramatic movements to attract women's attention which is a variable in this regard. That male birds use natural instincts and imitate other males to build their nests [71].…”

Section: Satin Bowerbird Optimizer (Sbo)mentioning

confidence: 99%

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Optimizing Software Effort Estimation Models Based On Metaheuristic Methods: A Proposed Framework

Marco¹

2019

IJATCSE

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Software effort estimation are part of the field of project management in software that is very important for development efforts. Software development planning is something very complex and serious, which determines the success of a software project. Because of the lack of good requirements and information, it causes software project failures. Although there are many studies that aim to solve the problem of noisy, irrelevant and excessive data to achieve accuracy. The purpose of this study is to combine metaheuristic optimization techniques as a framework for using Machine Learning models. By proposing a hybrid estimation model based on a combination of the Satin Bowerbird Optimizer (SBO) algorithm and Support Vector Regression (SVR) to improve the accuracy of software estimation efforts. This study is to determine the effort estimation and duration estimation. The proposed framework is based on theoretical concepts. the proposed model will be tested using a heterogeneous dataset, namely the ISBSG dataset. the results of the study are expected to be used as decision making as the initial planning of software project development.

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SBO-based selective harmonic elimination for nine levels asymmetrical cascaded H-bridge multilevel inverter

Cited by 12 publications

References 18 publications

Solid State Transformers Topologies, Controllers, and Applications: State-of-the-Art Literature Review

Solid State Transformers Topologies, Controllers, and Applications: State-of-the-Art Literature Review

Solid-State Transformers: Fundamentals, Topologies, Applications, and Future Challenges

Optimizing Software Effort Estimation Models Based On Metaheuristic Methods: A Proposed Framework

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