Impact of Solar Irradiance and Ambient Temperature on PV Inverter Reliability Considering Geographical Locations

Kshatri, Sainadh Singh; Dhillon, Javed; Mishra, Sachin

doi:10.18280/ijht.390132

Cited by 7 publications

(2 citation statements)

References 12 publications

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“…Typical mission profiles for power electronic systems can be the wind speed in wind energy, solar irradiance in photovoltaic applications, speed and torque variations of the electric machine in motor drive applications, output voltage and current operating ranges, customer usage behavior, and also the environmental factors like temperature, humidity, vibration level, etc. [50]. In the case of PV applications, the solar irradiance and ambient temperature are considered as mission profiles [51].…”

Section: I) Mission Profilementioning

confidence: 99%

An Overview of Lifetime Management of Power Electronic Converters

et al. 2022

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An expected lifetime of converters is of great importance for optimal decision-making in the planning of modern Power Electronic (PE) systems. Hence, the lifetime management of power electronic systems has attracted a lot of attention in academia and industry. This paper is a guideline for managing the lifetime of power converters. Analyzing the different kinds of failures, failure modes and their corresponding mechanisms are investigated in the first section along with the failure data needed as input parameters of the assessment. In the second section, lifetime prediction in two aspects of component-level and system level is discussed and all the possible techniques to achieve them are investigated and compared. All the steps required to predict the lifetime in the component-level including electrothermal modeling, cycle counting, lifetime model, damage accumulation, parameter estimation, and lifetime distribution are described and then system level methods consisting of reliability block diagrams, fault-tree analysis, and Markov chains are examined and compared. The last section contains the roadmap of the lifetime extension including the reliable design and condition monitoring. INDEX TERMSReliability, Lifetime management, Lifetime analysis, Lifetime prediction, Lifetime extension, Empirical model, Physics of failure, failure mechanism FIGURE 1. Guideline of the reliability of power electronic systems.

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Section: I) Mission Profilementioning

confidence: 99%

An Overview of Lifetime Management of Power Electronic Converters

et al. 2022

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“…The need for electricity demand is increasing all over the world [1]. The best solution for ever-increasing electricity demand is through renewable energy sources (RES).…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of PV Panel Configurations Considering PSC’s for PV Standalone Applications

Kumar¹,

Reddy²

2021

JESA

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One of the major concerns for continuous solar photovoltaic (PV) generation is partial shading. The movement of clouds, shadow of buildings, trees, birds, litter and dust, etc., can lead to partial shadow conditions (PSCs). The PSCs have caused inconsistent power losses in the PV modules. This leads to a shortage of electricity production and the presence in the PV curve of several peaks. One of the simplest solutions to PSC’s is the PV configurations. The objective of this paper is modelling and simulation of solar PV system in various shading scenarios for KC200GT 200 W, 5 x 5 configurations that includes Series/Parallel (SP), Total-Cross-Tied (TCT), Triple-Tied (TT), Bridge-Link (BL) configurations. Real time PSC’s such as corner, center, frame, random, diagonal, right side end shading conditions are evaluated under all PV array configurations. A comparative analysis is carried out for the parameters such as open circuit voltage, short circuit current, maximum power point, panel mismatch losses, fill factor, efficiency under all PV configurations considering PSC’s. From the comparison analysis best configuration will be presented.

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