Mission Profile Oriented Reliability Evaluation of Grid-Connected PV Inverter Considering Panel Degradation and Uncertainties at Indian Location

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

doi:10.1007/978-981-33-6753-1_3

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…A test case of a 3 kW PV inverter for gridconnected applications is considered for reliability analysis. The loading of a PV inverter under uncertain environmental conditions, i.e., MP (AT, SI), impacts its reliability; hence, yearly MP at India [25] and Denmark [26] locations are considered during reliability analysis. The effectiveness of the proposed hybrid Si/SiC power module is tested by comparing it with a conventional IGBT power module.…”

Section: Introductionmentioning

confidence: 99%

Comparative Reliability Assessment of Hybrid Si/SiC and Conventional Si Power Module Based PV Inverter Considering Mission Profile of India and Denmark Locations

Kshatri¹,

Dhillon

Mishra

et al. 2022

Energies

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Energy harnessing from renewable energy sources has become more flexible with power electronic technologies. Recent advancements in power electronic technologies achieve converter efficiency higher than 98%. Today, reliable power electronic devices are needed to design a PV-based energy converter (inverter) to reduce the risk of failure and maintenance costs during operation. Wide-bandgap SiC devices are becoming more common in power electronic converters. These devices are designed to reduce switching loss and improve the efficiency of the system. Nevertheless, the cost of SiC devices is a major concern. Hence, to improve the reliability of the PV inverter while considering the economic aspects, this paper develops a highly reliable PV inverter with a hybrid Si/SiC power module that consists of a Si-IGBT with a SiC anti-parallel diode. A test case of a 3 kW PV inverter is considered for reliability analysis. The loading of the PV inverter is done under uncertain environmental conditions by considering the yearly Mission Profile (MP) data related to Ambient Temperature (AT) and Solar Irradiance (SI) at the India and Denmark locations. The effectiveness of the proposed hybrid Si/SiC power module is tested by comparing it with a conventional IGBT power module. The results showcase the marked improvement in PV inverter reliability with the proposed hybrid power module.

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Section: Introductionmentioning

confidence: 99%

Comparative Reliability Assessment of Hybrid Si/SiC and Conventional Si Power Module Based PV Inverter Considering Mission Profile of India and Denmark Locations

Kshatri¹,

Dhillon

Mishra

et al. 2022

Energies

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Reliability Analysis of PV Inverters Considering Locational Impact

Suresh Kumar,

Deepak,

Lokeswara Reddy

et al. 2024

E3S Web of Conf.

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The inverter system is an important piece of equipment for efficiently absorbing the electricity generated from renewable sources and ensuring reliable grid connections. As power electronics advance, inverter conversion efficiency is improving and photovoltaic (PV) energy is becoming a major contributor to the global supply of renewable energy. However, a key consideration is how reliable the PV inverters are. The dependability performance of PV inverters can be influenced by various environmental parameters, such as solar radiation and temperature (collectively referred to as Mission Profile). Given that these conditions vary by location, it is necessary to take them into account when evaluating the dependability performance of a PV inverter. The Mission Profile, including the local solar radiation and surrounding temperature, are important factors determining the lifespan of a PV inverter. This research examines how environmental variables and geographic position affect the dependability performance of PV converters and finds that these elements have a significant bearing on that performance.

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