Lifetime Monitoring of Electrolytic Capacitor to Maximize Earnings From Grid-Feeding PV System

Agarwal, Nikunj; Arya, Abhinav; Ahmad, Md. Waseem; Anand, Sandeep

doi:10.1109/tie.2016.2586020

Cited by 40 publications

(18 citation statements)

References 28 publications

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“…However, the estimation accuracy of RESR is relatively low, and high-frequency sampling of short-circuit current is required. c) The power losses schemes in [54], [55] (based on 1J) and capacitor current estimation scheme in [49] (based on 1C, 1G) can real-online monitoring the health status of capacitors without additional hardware circuits and current sensors. However, specially defined failure criteria are required.…”

Section: ) Discussion Of CM Schemes For Capacitors In Pv Invertermentioning

confidence: 99%

“…Based on the idea of power losses (i.e., method 1J), [54], [55] proposed a power extraction efficiency (PEE) method to monitor the health state of capacitors. The PEE is defined as PEE = Pav/Pmax, where Pav and Pmax represent the average PV power and maximum PV power.…”

Section: ) Power Losses Based Methods (1j)mentioning

confidence: 99%

“…Single-phase inverters are widely used in photovoltaic (PV) systems to feed power from energy sources to the grid. Some condition monitoring schemes of capacitors in single-phase inverters are presented in [48]− [55]. All of these schemes are derived based on Principle I.…”

Section: A CM For Capacitors In Pv Grid-connected Invertersmentioning

confidence: 99%

“…Others are implemented on-site in a real system, i.e., real-online and quasi-online schemes. Here, different types of dc-link applications are considered, such as adjustable speed drive (ASD) systems [25]− [47], photovoltaic (PV) grid-connected inverters [48]− [55], power factor correction (PFC) converters [56]− [61], and dc/dc buck and boost converters [62]− [101]. Moreover, the implementation methods are various.…”

Section: Introductionmentioning

confidence: 99%

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An Overview of Condition Monitoring Techniques for Capacitors in DC-Link Applications

Zhao

Davari

et al. 2021

IEEE Trans. Power Electron.

150

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Capacitors are widely used in dc links of power electronic converters to balance power, suppress voltage ripple, and store short-term energy. Condition monitoring (CM) of dc-link capacitors has great significance in enhancing the reliability of power converter systems. Over the past few years, many efforts have been made to realize CM of dc-link capacitors. This paper gives an overview and a comprehensive comparative evaluation of them with emphasis on the application objectives, implementation methods, and monitoring accuracy when being used. First, the design procedure for the condition monitoring of capacitors is introduced. Second, the main capacitor parameters estimation principles are summarized. According to these principles, various possible CM methods are derived in a step-by-step manner. On this basis, a comprehensive review and comparison of CM schemes for different types of dc-link applications are provided. Finally, application recommendations and future research trends are presented.

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Section: ) Discussion Of CM Schemes For Capacitors In Pv Invertermentioning

confidence: 99%

Section: ) Power Losses Based Methods (1j)mentioning

confidence: 99%

Section: A CM For Capacitors In Pv Grid-connected Invertersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An Overview of Condition Monitoring Techniques for Capacitors in DC-Link Applications

Zhao

Davari

et al. 2021

IEEE Trans. Power Electron.

150

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“…Unfortunately, in conventional photovoltaic systems, not only a higher efficiency in the DC-DC converter is sought, but also other aspects related to the efficient extraction of energy by the solar cells, due to this a large part of the effort devoted by the academic and scientific area for this type of applications, is focused on finding solutions to aspects related to environmental conditions, orientation of the module, shading, dirt, misalignment, monitoring of the maximum power point tracking (MPPT), increase in reliability among some others [72][73][74][75][76][77][78][79][80][81].…”

Section: Applications In Pv Systemsmentioning

confidence: 99%

Recent Advance and Future Progress of GaN Power Semiconductor Devices Used in PV Module Integrated Converters

Rodríguez-Benítez¹,

Silva²,

Hernández-González³

et al. 2018

Preprint

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Power semiconductor devices are essential from the operation point of view, size, efficiency and cost, these components are used in a myriad of applications, providing features that make them an important part of the system in which they are operating. This document analyzes and compares the basic structure, properties, design aspects, as well as temperature performance, stability and switching losses, present in devices on silicon (Si), silicon carbide (SiC) and new generation devices fabricated in gallium nitride (GaN) applied in renewable energy systems. The main objective is determinate the viability of the new generation components, which present a superior performance in view of an increase in efficiency, conductivity, decreases in switching losses, lower resistances and parasitic capacitances as well as higher operating frequency range. Therefore demonstrating the GaN components are a strong and viable candidate to solve some of the problems present in renewable energy systems.

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Aging Detection for Capacitors in Power Electronic Converters

Zhao

Huai

2022

Fault Analysis and Its Impact on Grid‐connected Photovoltaic Systems Performance

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Lifetime Monitoring of Electrolytic Capacitor to Maximize Earnings From Grid-Feeding PV System

Cited by 40 publications

References 28 publications

An Overview of Condition Monitoring Techniques for Capacitors in DC-Link Applications

An Overview of Condition Monitoring Techniques for Capacitors in DC-Link Applications

Recent Advance and Future Progress of GaN Power Semiconductor Devices Used in PV Module Integrated Converters

Aging Detection for Capacitors in Power Electronic Converters

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