The BypassDiode –A Weaknessin today's PV Systems

Gfeller, Daniel; Neukomm, Rosmarie; Muntwyler, Urs (7 September 2020). The BypassDiode –A Weaknessin today's PV Systems In: EUPVSEC 2020. Lissabon, Portugal. 07.-11. September 2020.

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Remarkable progress has been made in the technology of photovoltaic power systems over the past 40 years. Even though the vast majority of all solar modules are still based on crystalline silicon cells, the efficiency of these modules has more than doubled, which has a considerable impact on the electrical parameters of the solar generator. This is particularly noticeable in the operating current. Because of the higher efficiency, but especially due to the increase in cell area, this current has more than tripled in the last four decades. The string current of modern PV arrays is so high, that with partial shading, a danger exists that the bypass diodes may overheat and be damaged or destroyed. This can lead to consequential damage and in the worst case lead toa fire. This contribution focuses on the problems of today's bypass diode concepts. It also discusses current and possible future developments to solve these problems.

Item Type:

Conference or Workshop Item (Paper)

Division/Institute:

School of Engineering and Computer Science > Institute for Energy and Mobility Research IEM
School of Engineering and Computer Science > Institute for Energy and Mobility Research IEM > IEM / Photovoltaic systems
School of Engineering and Computer Science

Name:

Gfeller, Daniel;
Neukomm, Rosmarie and
Muntwyler, Urs

Subjects:

T Technology > TK Electrical engineering. Electronics Nuclear engineering

Language:

English

Submitter:

Christof Bucher

Date Deposited:

13 Jan 2021 10:25

Last Modified:

22 Sep 2021 14:00

Related URLs:

ARBOR DOI:

10.24451/arbor.13941

URI:

https://arbor.bfh.ch/id/eprint/13941

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