Grid Interfacing of Multimegawatt Photovoltaic Inverters

Azmi, Syahrul Ashikin; Adam, Grain Philip; Ahmed, Khaled; Finney, S.J.; Williams, B.W.

doi:10.1109/tpel.2012.2219072

Cited by 51 publications

(22 citation statements)

References 54 publications

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“…6) [2], [13], [20], [27], [122], [124]. The PV generator can be used as a synchronous generator to compensate the reactive power through the inverter [125], [126]. 4) Distance between the loads and the DERs [13], because line impedance varies with it, causes an unbalanced flow of reactive power [96], [123].…”

Section: A Factors Affecting Voltage Stabilitymentioning

confidence: 99%

Control Methods and Objectives for Electronically Coupled Distributed Energy Resources in Microgrids: A Review

Eid

Rahim

Selvaraj

et al. 2016

IEEE Systems Journal

162

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Increased penetration of distributed energy resources into conventional power systems increases control challenges. These can be suitably met by microgrids. This paper examines the architecture of microgrids and reviews their classifications and the literatures discussing their control objectives during islanded mode. It finds the use of microgrids enhancing the conventional power system's grid smartness. It also summarizes microgrid control objectives and their most common problems and solutions.

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Section: A Factors Affecting Voltage Stabilitymentioning

confidence: 99%

Control Methods and Objectives for Electronically Coupled Distributed Energy Resources in Microgrids: A Review

Eid

Rahim

Selvaraj

et al. 2016

IEEE Systems Journal

162

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“…Technological advancement and cost effectiveness are the two major factors; make use of solar energy to meet the increased energy demands [1], [2]. During 2007 to 2017 there is 83% of cost reduction in solar panels are noticed, which steers to decrease the cost of generation from solar PV panels.…”

Section: Introductionmentioning

confidence: 99%

Technological Developments in Direct Grid Connected Power Converters for Solar PV Power Plants

Kumar¹,

Ganesh²

2019

IJEAT

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Most of the countries in the world are concentrating on renewable energy generation, due to day-day increase in population increasing the energy demand, also to make their environment sustainable. With the many of features, use of megawatts rating solar photovoltaic (PV) power plants are becoming more popular for upgrading the existing power generation throughout the world. Moreover, among the existing renewable energy generations, solar power is the primary choice to meet the rapidly increasing demands; since solar PV plant installing time is relatively quick, say about in 3- 4 months, compared to conventional (thermal, hydro & diesel) plants which may require about 3-4 years. The low voltage (270‒700V) power converters require a filter and a step-up transformer for interconnecting the local grids with solar PV power plants. The advances in power converters without transformers and filters have recently become more attractive for solar PV power plants connected directly to grid. The study of this article describes the essential requirement and the technological developments in the design of power electronics converters, together with their modulation schemes to integrate solar power directly with standard power grid. This article, review ongoing research activities and the probable directions for the future research in developing inverters for cost-efficient grid connected solar PV plants

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“…ITH the rapid development of large-scale solar photovoltaic (PV) power plants, the medium-voltage PV converter which enables solar PV power systems to be directly connected to the medium/high-voltage lines, without using heavy weight and large size line filters, boosters and step-up-transformers has become realistic [1]- [3]. In this emerging application, the modular multilevel cascaded (MMC) converter circuit topology has gained considerable popularity due to its superior features [4]- [7].…”

Section: Introductionmentioning

confidence: 99%

Modular Medium-Voltage Grid-Connected Converter With Improved Switching Techniques for Solar Photovoltaic Systems

Islam

Mahfuz-Ur-Rahman

Islam

et al. 2017

IEEE Trans. Ind. Electron.

124

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The high-frequency common magnetic-link made of amorphous material, as a replacement for common dc-link, has been gaining considerable interest for the development of solar photovoltaic medium-voltage converters. Even though the common magnetic-link can almost maintain identical voltages at the secondary terminals, the power conversion system loses its modularity. Moreover, the development of high-capacity high-frequency inverter and power limit of the common magnetic-link due to leakage inductance are the main challenging issues. In this regard, a new concept of identical modular magnetic-links is proposed for highpower transmission and isolation between the low and the high voltage sides. Third harmonic injected sixty degree bus clamping pulse width modulation and third harmonic injected thirty degree bus clamping pulse width modulation techniques are proposed which show better frequency spectra as well as reduced switching loss. In this paper, precise loss estimation method is used to calculate switching and conduction losses of modular multilevel cascaded converter. To ensure the feasibility of the new concepts, a reduced size of 5 kVA rating, threephase, five-level, 1.2 kV converter is designed with two 2.5 kVA identical high-frequency magnetic-links using Metglas magnetic alloy-based cores.Index Terms-Modular medium voltage converter, modular magnetic link, solar photovoltaic power plants, new modulation techniques, loss estimation.

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Grid Interfacing of Multimegawatt Photovoltaic Inverters

Cited by 51 publications

References 54 publications

Control Methods and Objectives for Electronically Coupled Distributed Energy Resources in Microgrids: A Review

Control Methods and Objectives for Electronically Coupled Distributed Energy Resources in Microgrids: A Review

Technological Developments in Direct Grid Connected Power Converters for Solar PV Power Plants

Modular Medium-Voltage Grid-Connected Converter With Improved Switching Techniques for Solar Photovoltaic Systems

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