Virtual Temperature Detection of Semiconductors in a Megawatt Field Converter

Rannestad, Bjørn; Fischer, Katharina; Nielsen, Peter; Gadgaard, Kristian; Munk‐Nielsen, Stig

doi:10.1109/tie.2019.2901662

Cited by 13 publications

(15 citation statements)

References 22 publications

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“…Reference [10,17 ] Reference [8,9,11,18,19,20 ] Reference [21] Calibration Calibration Calibration other sources of uncertainties. Nevertheless, due to the timeconsuming process, offline calibrations are usually preformed for a limited number of samples and cannot fully exclude the impact of parameter variances.…”

Section: § High Accuracymentioning

confidence: 99%

“…The on-line implementation is defined in this paper that the calibration methods utilize the natural operational statuses of converter only and do not add or modify the original control. Based on our best knowledge, there is only one paper that discloses a non-invasive on-line calibration method [21]. It builds a look-up table by logging the on-state voltage of IGBT at the selected sensing current, fundamental current I rms , and the liquid temperature of cooling system T l at the whole power range (e.g., 0.1 to 1.0 p.u.)…”

Section: Consmentioning

confidence: 99%

“…Although it can use the neighboring data to approximately represent the uncovered conditions, which can cause approximate errors. In [21], three-months operation data-logging is used to finish calibration. Then, the estimated result can sense the change of junction temperature but with a maximum error by 20 • C compared to the simulated result.…”

Section: Consmentioning

confidence: 99%

“…By comparing with the existing methods presented in Fig. 2, the proposed method shows that: 1) it is an on-line method by leveraging the natural operation statuses of power converter and without conducting pre-testing; 2) it does not need to add or modify controls in the original controller since the required operational statuses of converter are existed naturally; 3) it requires three pairs of TSEP and heatsink temperature only, and can be conducted in a much shorter time compared to the method in [21]; 4) it can achieves comparable accuracy of T j estimation with the methods illustrated in the second group above. Moreover, the proposed method can be performed throughout the service life of power devices in a system to distinguish the impact of degradation.…”

Section: Consmentioning

confidence: 99%

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An On-Line Calibration Method for TSEP-Based Junction Temperature Estimation

Peng

Wang

et al. 2022

IEEE Trans. Ind. Electron.

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Temperature Sensitive Electrical Parameters (TSEP) provide an indirect and non-invasive method for online junction temperature estimation of power semiconductor devices. It is known that the fundamental of TSEP-based methods is to calibrate the relationship between TSEP and junction temperature in advance. However, the calibration methods in the literature need to open the module, require pre-testing, or record the operating data of a converter in the entire power rating range, which are inconvenient in field applications. This paper proposes an on-line and non-invasive calibration method by measuring the data at three operating states that are already existed in the regular converter operation. It is achieved by measuring the accessible heatsink/case temperature and TSEP during converter regular operation. The concept, implementation, and error analysis of the proposed method are presented in this paper. Experimental verification is given to prove the effectiveness, accuracy, and convenience of the proposed method.

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Section: § High Accuracymentioning

confidence: 99%

Section: Consmentioning

confidence: 99%

Section: Consmentioning

confidence: 99%

Section: Consmentioning

confidence: 99%

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An On-Line Calibration Method for TSEP-Based Junction Temperature Estimation

Peng

Wang

et al. 2022

IEEE Trans. Ind. Electron.

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“…Complexity, cost, design constraint, accessibility, and effectiveness under field operation environment are of great concern. In [106,107], challenges in circuit parasitics and data analytics of a condition monitoring unit for IGBT power modules are addressed. A converter-level power device on-state voltage measurement method is developed in [108], which reduces the design cost and provides a converter-level plug-and-play solution without the need to connect to the monitored power devices.…”

Section: A Physics-of-degradation and Condition Monitoringmentioning

confidence: 99%

Power Electronics Reliability: State of the Art and Outlook

Wang

Blaabjerg

2021

IEEE J. Emerg. Sel. Topics Power Electron.

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Some Security Aspects of Batteries and Power Electronic Converters in a Microgrid

Matić,

Draženović,

Šunde

et al. 2023

IEEE Access

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The motivation to write this paper is a need to contribute to research of methods of defence against intentional attacks on components of hybrid power systems (microgrids) based on renewable energy sources and storage systems. Spatially distributed electrical energy sources and energy storage devices are gradually being developed and installed, but the security protection of microgrids or individual components of a microgrid is not being improved accordingly. A good example is a fleet of EVs in an urban environment connected to a microgrid with low level of security measures in place (or sometimes none). The term security refers to protection against intentional attacks, not protection against accidents and malfunctions (safety). Lithium batteries, as potentially the most dangerous devices in a microgrid system, i.e. the most likely targets of intentional attacks, can be protected by adequate protection of their power converters and BMSs. This paper presents some of the possible intentional attacks on a battery energy storage system in a microgrid, as well as proposed improvements to the protection of communication channels, power converters' process data logging, and physical protection of battery energy storage systems.

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Virtual Temperature Detection of Semiconductors in a Megawatt Field Converter

Cited by 13 publications

References 22 publications

An On-Line Calibration Method for TSEP-Based Junction Temperature Estimation

An On-Line Calibration Method for TSEP-Based Junction Temperature Estimation

Power Electronics Reliability: State of the Art and Outlook

Some Security Aspects of Batteries and Power Electronic Converters in a Microgrid

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