A New Fast Peak Current Controller for Transient Voltage Faults for Power Converters

Muñoz-Cruzado-Alba, Jesús; Villegas-Nunez, Javier; Vite-Frias, Jose Alberto; Solís, Juan Manuel Carrasco

doi:10.3390/en9010001

Cited by 16 publications

(9 citation statements)

References 11 publications

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“…• Low voltage ride through: some of the most common requirements present in grid codes for DER are the low voltage ride through requirements. Grid codes require of power converters to remain connected if the fault is not long enough and to help the system regulating the active and reactive current output of the converter conveniently [18]. • Black-start: black-start capability consists in the availability of power converters to restore by themselves the electric grid power supply without the need of the intervention of any central synchronous generator [19,20].…”

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confidence: 99%

Role of Wide Bandgap Materials in Power Electronics for Smart Grids Applications

et al. 2021

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At present, the energy transition is leading to the replacement of large thermal power plants by distributed renewable generation and the introduction of different assets. Consequently, a massive deployment of power electronics is expected. A particular case will be the devices destined for urban environments and smart grids. Indeed, such applications have some features that make wide bandgap (WBG) materials particularly relevant. This paper analyzes the most important features expected by future smart applications from which the characteristics that their power semiconductors must perform can be deduced. Following, not only the characteristics and theoretical limits of wide bandgap materials already available on the market (SiC and GaN) have been analyzed, but also those currently being researched as promising future alternatives (Ga2O3, AlN, etc.). Finally, wide bandgap materials are compared under the needs determined by the smart applications, determining the best suited to them. We conclude that, although SiC and GaN are currently the only WBG materials available on the semiconductor portfolio, they may be displaced by others such as Ga2O3 in the near future.

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confidence: 99%

Role of Wide Bandgap Materials in Power Electronics for Smart Grids Applications

et al. 2021

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“…The color of the WO 3 film will be bleached upon anodic polarization, thus returning to the transparent state. 17 The total cathodic charge of the WO 3 film reaches 0.45 mC/ cm 2 , indicating a high cation insertion ability that will ensure the high performance of the films acting as the electrochromic window. Another important parameter for the electrochromic window is color efficiency, which represents the change in optical density per unit of inserted charge.…”

Section: Resultsmentioning

confidence: 97%

“…In general, the WO 3 film will turn blue when it is catholically polarized. The color of the WO 3 film will be bleached upon anodic polarization, thus returning to the transparent state . The total cathodic charge of the WO 3 film reaches 0.45 mC/cm 2 , indicating a high cation insertion ability that will ensure the high performance of the films acting as the electrochromic window.…”

Section: Resultsmentioning

confidence: 99%

“…Among these three smart windows, electrochromic windows have attracted most attention due to their advantages in broad working spectral range, energy saving, and high controllability and durability. , Specifically, the smart concept for electrochromic windows is based on their unique property of dynamically regulating the visible and near-infrared light, thereby modulating the light transmittance and solar heat. In addition, the significant progress achieved in the quasi-solid-state electrolyte with high ionic conductivity and stability further enhances the practicability of electrochromic windows in real applications. ,− With this single artificial functionality, however, the electrochromic windows cannot perfectly interpret the “smart” concept. Therefore, it is highly desirable to integrate additional functionalities (i.e., temperature controller, electricity generator, or lighting) by artful management of solar spectrum and conversion of solar energy. − In addition to the visible and near-infrared light, ultraviolet (UV) radiation is also an important component of solar radiation, accounting for around 5% of the total solar radiation .…”

Section: Introductionmentioning

confidence: 99%

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Pairing of Luminescent Switch with Electrochromism for Quasi-Solid-State Dual-Function Smart Windows

Wang

Zhu

Gou

et al. 2018

ACS Appl. Mater. Interfaces

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Smart window is a promising green technology with feature of tunable transparency under external stimuli to manage light transmission and solar energy. However, more functions based on the intelligent management of the solar spectrum need to be integrated into present smart windows. In this work, a dual-function smart window is fabricated by pairing the luminescent switch with the electrochromic window. The dual function is based on a single fluorine doped tin oxide coated glass functionalized with tungsten oxide and copper nanocluster, among which tungsten oxide serves as an electrochromic material and copper nanocluster provides photoinduced luminescence. Along with the regulation of the visible light based on the electrochromism of the window, the luminescence can be finely switched on and off, which establishes a pair of reversible states ("on" and "off") for the dual-function smart window. The contrast between two states reaches 88%. Furthermore, the manipulation of dual-function smart window is highly reversible with a short response time of 12.6 s. This prototype of dual-function smart window paves the way for developing multifunctional smart windows by integrating different functional materials into one smart window based on the rational management of the solar spectrum.

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“…Figure 3 shows a classical DG converter control block scheme. The controller is divided into four layers [50,51]:…”

Section: Power Inverter Controller Structurementioning

confidence: 99%

Novel Utility-Scale Photovoltaic Plant Electroluminescence Maintenance Technique by Means of Bidirectional Power Inverter Controller

et al. 2020

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Nowadays, photovoltaic (PV) silicon plants dominate the growth in renewable energies generation. Utility-scale photovoltaic plants (USPVPs) have increased exponentially in size and power in the last decade and, therefore, it is crucial to develop optimum maintenance techniques. One of the most promising maintenance techniques is the study of electroluminescence (EL) images as a complement of infrared thermography (IRT) analysis. However, its high cost has prevented its use regularly up to date. This paper proposes a maintenance methodology to perform on-site EL inspections as efficiently as possible. First, current USPVP characteristics and the requirements to apply EL on them are studied. Next, an increase over the automation level by means of adding automatic elements in the current PV plant design is studied. The new elements and their configuration are explained, and a control strategy for applying this technique on large photovoltaic plants is developed. With the aim of getting on-site EL images on a real plant, a PV inverter has been developed to validate the proposed methodology on a small-scale solar plant. Both the electrical parameters measured during the tests and the images taken have been analysed. Finally, the implementation cost of the solution has been calculated and optimised. The results conclude the technical viability to perform on-site EL inspections on PV plants without the need to measure and analyse the panel defects out of the PV installation.

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A New Fast Peak Current Controller for Transient Voltage Faults for Power Converters

Cited by 16 publications

References 11 publications

Role of Wide Bandgap Materials in Power Electronics for Smart Grids Applications

Role of Wide Bandgap Materials in Power Electronics for Smart Grids Applications

Pairing of Luminescent Switch with Electrochromism for Quasi-Solid-State Dual-Function Smart Windows

Novel Utility-Scale Photovoltaic Plant Electroluminescence Maintenance Technique by Means of Bidirectional Power Inverter Controller

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