Projects per year
Abstract
The popularity of transformerless photovoltaic (PV) inverters in Europe proves that these topologies can achieve higher efficiency (e.g., ≥ 98% has been reported). Along with the advanced power electronics technology and the booming development of PV power systems, a long service time (e.g. 25 years) has been set as a main target and an emerging demand from the customers, which imposes a new challenge on grid-connected transformerless inverters. In order to reduce maintenance cost, it is essential to predict the lifetime of the transformerless PV inverter and its components based on the mission profiles — solar irradiance and ambient temperature. In this paper, a mission profile based analysis approach is proposed and it is demonstrated by three main single-phase transformerless PV inverters — Full-Bridge (FB) with bipolar modulation scheme, the FB inverter with DC bypass (FB-DCBP) topology and the FB inverter with AC bypass leg (highly efficient and reliable inverter concept, HERIC inverter). Since the thermal stress is one of the most critical factors that induce failures, the junction temperatures on the power devices of the three topologies are analyzed and compared by considering the mission profiles. The lifetimes of these topologies are discussed according to the thermal performance and the power losses on the switching devices are also compared.
Original language | English |
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Title of host publication | Proceedings of the 15th European Conference on Power Electronics and Applications, EPE 2013 : EPE 2013 |
Number of pages | 10 |
Publisher | IEEE Press |
Publication date | 2013 |
Pages | 1-10 |
Article number | 6631986 |
DOIs | |
Publication status | Published - 2013 |
Event | European Conference on Power Electronics and Applications (EPE) - Lille, France Duration: 2 Sept 2013 → 6 Sept 2013 Conference number: 15 |
Conference
Conference | European Conference on Power Electronics and Applications (EPE) |
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Number | 15 |
Country/Territory | France |
City | Lille |
Period | 02/09/2013 → 06/09/2013 |
Keywords
- Mission profile
- Thermal stress
- Reliability
- Photovoltaic
- Single phase system
- Voltage source converter
Fingerprint
Dive into the research topics of 'Mission profile based multi-disciplinary analysis of power modules in single-phase transformerless photovoltaic inverters'. Together they form a unique fingerprint.Projects
- 1 Finished
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Center Of Reliable Power Electronics (CORPE)
Blaabjerg, F., Munk-Nielsen, S., Pedersen, K. & Popok, V.
01/04/2011 → 31/12/2016
Project: Research
Activities
- 1 Conference presentations
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European Conference on Power Electronics and Applications, EPE 2013
Huai Wang (Speaker)
2 Sept 2013 → 5 Sept 2013Activity: Talks and presentations › Conference presentations