Reviewing Thermal-Monitoring Techniques for Smart Power Modules

Kalker, Sven; Ruppert, Lukas A.; Broeck, Christoph H. van der; Kuprat, Johannes; Andresen, Markus; Polom, Timothy A.; Liserre, Marco; Doncker, Rik W. De

doi:10.1109/jestpe.2021.3063305

Cited by 46 publications

(12 citation statements)

References 105 publications

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“…A digital twin consists of three main parts: a real-time simulation of the physical system or a part of it in the virtual domain, measurements of the physical system, and an optimization algorithm adjusting the virtual model parameters for an optimal representation of the physical system by the virtual model. This definition fits also for what is known as adaptive thermal observer [1]. This approach gives an optimized representation of the real thermal behavior by the model in the estimator part of the observer.…”

Section: Reliability-driven Control For Power System Applications: Dy...mentioning

confidence: 95%

“…power losses estimation [11]) will effectively eliminate this error, correcting model deviations, and therefore enhancing the estimated temperatures over the thermal network. Thermal observers are mainly used in two scenarios: For monitoring thermal state variables, and for adaptive parameter estimation, which are key enablers for degradation monitoring and state of health estimation [1]. Additional features can be highlighted about thermal observers, such as their capability of estimating temperature with zero phase-lag, or the noise suppression present in Kalman-filter implementations.…”

Section: Optical Sensing For Enhanced Thermalmentioning

confidence: 99%

“…The most limiting factor in the overall performance and degradation of power modules is the thermal heat dissipation [1], hence, condition monitoring and active control have great value in order to improve their lifetime. In the last decades, the industry has been gradually shifting from a "passive design" of power electronics modules, which relies on oversizing to ensure robust operation over the lifetime of the product, to an intelligent power actuator and sensor interface that can actively manage thermal characteristics [2], i.e.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optical Sensing Applied to Thermal Observers for Enhanced Reliability of Power Modules

Santos-Arana

Pascal

Kuprat

et al. 2022

2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)

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Condition Monitoring using thermal variables has been identified as one of the most critical aspects when assessing the performance and degradation of Power Modules (PMs). Different sensing technologies and algorithms have been proposed in order to develop high-performance reliability-driven control of PMs. This paper focuses on the application of contact-based fiber optic temperature sensors in thermal observers. These sensors have the potential to become key enhancers of real-time thermal monitoring applications. One specific power systems application is evaluated by assessing the dynamic capacity of converters under contingency operation via digital twins. The assessment of the dynamic capacity is limited to the most critical element, which normally corresponds to power electronics due to their small time constant. The application of these sensors extends the safety range of operation based on real-time operational data, rather than based on design.

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Section: Reliability-driven Control For Power System Applications: Dy...mentioning

confidence: 95%

Section: Optical Sensing For Enhanced Thermalmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optical Sensing Applied to Thermal Observers for Enhanced Reliability of Power Modules

Santos-Arana

Pascal

Kuprat

et al. 2022

2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)

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“…Therefore, it is crucial to select appropriate technology to mitigate the limitations imposed by equipment requirements and operating conditions. There have been several reviews covering general temperature measurement techniques [28], semiconductor temperature measurement [29,30], and various electronic modules [31][32][33][34]. Numerous methods have been proposed for detecting the thermal characteristics of LEDs, with existing junction temperature measurement methods primarily focused on identifying temperature-sensitive parameters (TSPs), including temperature-sensitive electrical parameters (TSEPs) and temperature-sensitive optical parameters (TSOPs) [35][36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

LED Junction Temperature Measurement: From Steady State to Transient State

Zhao,

Gong,

Zhu

et al. 2024

Sensors

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In this review, we meticulously analyze and consolidate various techniques used for measuring the junction temperature of light-emitting diodes (LEDs) by examining recent advancements in the field as reported in the literature. We initiate our exploration by delineating the evolution of LED technology and underscore the criticality of junction temperature detection. Subsequently, we delve into two key facets of LED junction temperature assessment: steady-state and transient measurements. Beginning with an examination of innovations in steady-state junction temperature detection, we cover a spectrum of approaches ranging from traditional one-dimensional methods to more advanced three-dimensional techniques. These include micro-thermocouple, liquid crystal thermography (LCT), temperature sensitive optical parameters (TSOPs), and infrared (IR) thermography methods. We provide a comprehensive summary of the contributions made by researchers in this domain, while also elucidating the merits and demerits of each method. Transitioning to transient detection, we offer a detailed overview of various techniques such as the improved T3ster method, an enhanced one-dimensional continuous rectangular wave method (CRWM), and thermal reflection imaging. Additionally, we introduce novel methods leveraging high-speed camera technology and reflected light intensity (h-SCRLI), as well as micro high-speed transient imaging based on reflected light (μ_HSTI). Finally, we provide a critical appraisal of the advantages and limitations inherent in several transient detection methods and offer prognostications on future developments in this burgeoning field.

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“…There have been some reviews that presented general temperature measurement techniques [ 53 ], temperature measurement of semiconductors [ 54 , 55 ], and various electronic modules [ 56 , 57 , 58 , 59 ]. However, to the best of our knowledge, an extensive review that focuses explicitly on experimental T j measurement of LEDs has yet to be completed.…”

Section: Introductionmentioning

confidence: 99%

A Critical Review on the Junction Temperature Measurement of Light Emitting Diodes

2022

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In the new age of illumination, light emitting diodes (LEDs) have been proven to be the most efficient alternative to conventional light sources. Yet, in comparison to other lighting systems, LEDs operate at low temperatures while junction temperature (Tj) is is among the main factors dictating their lifespan, reliability, and performance. This indicates that accurate measurement of LED temperature is of great importance to better understand the thermal effects over a system and improve performance. Over the years, various Tj measurement techniques have been developed, and existing methods have been improved in many ways with technological and scientific advancements. Correspondingly, in order to address the governing phenomena, benefits, drawbacks, possibilities, and applications, a wide range of measurement techniques and systems are covered. This paper comprises a large number of published studies on junction temperature measurement approaches for LEDs, and a summary of the experimental parameters employed in the literature are given as a reference. In addition, some of the corrections noted in non-ideal thermal calibration processes are discussed and presented. Finally, a comparison between methods will provide the readers a better insight into the topic and direction for future research.

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Reviewing Thermal-Monitoring Techniques for Smart Power Modules

Cited by 46 publications

References 105 publications

Optical Sensing Applied to Thermal Observers for Enhanced Reliability of Power Modules

Optical Sensing Applied to Thermal Observers for Enhanced Reliability of Power Modules

LED Junction Temperature Measurement: From Steady State to Transient State

A Critical Review on the Junction Temperature Measurement of Light Emitting Diodes

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