An Online and Noninvasive Technique for the Condition Monitoring of Capacitors in Boost Converters

Buiatti, G.M.; Martín-Ramos, J.A.; Garcia, C.; Amaral, A.M.R.; Cardoso, Alberto

doi:10.1109/tim.2009.2032960

Cited by 107 publications

(47 citation statements)

References 18 publications

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“…then the system description in Equation (9) can be matched to Equation (4), and the model matrices described as in Equation (10,11,12,13.…”

Section: State-space Cooler Control System Designmentioning

confidence: 99%

“…In wear-out mechanism, thermomechanical stress plays a very important role in affecting power electronic devices/modules reliability, such as the fractures propagation and degradations in solder layers, wire-bond lift-off and emitter metallization [6,2,7,8,9]. The failure mechanisms are influenced by both environmental and load conditions [10,11]. To address this issue, research has addressed different aspects, for example, new semiconductor and materials technologies [12,13], package architecture [14], interconnection [15], control of power electronic modules [16] and advanced cooling technologies [6,17].…”

Section: Introductionmentioning

confidence: 99%

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Observer based temperature control for reduced thermal cycling in power electronic cooling

Wang

Castellazzi

Zanchetta

2014

Applied Thermal Engineering

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The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. AbstractThis paper presents an advanced dynamic cooling strategy for multi-layer structured power electronic modules. A observer based feedback controller is proposed to reduce a power device or module's thermal cycle amplitude during operation, with the aim of improving reliability and lifetime. The full-state observer design is based on a developed Cauer type thermal model. The observer enables estimation and control of the temperature at reliability critical locations only measuring one accessible location. This makes the method particularly powerful and suitable for application in power systems. The designed strategy is confirmed experimentally. Although the experiment is developed for a specific application scenario, the proposed strategy is of general validity.

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“…then the system description in Equation (9) can be matched to Equation (4), and the model matrices described as in Equation (10,11,12,13.…”

Section: State-space Cooler Control System Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Observer based temperature control for reduced thermal cycling in power electronic cooling

Wang

Castellazzi

Zanchetta

2014

Applied Thermal Engineering

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show abstract

“…In wear-out mechanism, thermo-mechanical stress plays a very important role in affecting power electronic devices/modules reliability [1,5], such as the fractures propagation and degradations in solder layers [6], wire-bond lift-off [7] and emitter metallization [8]. The failure mechanisms are influenced by both environmental and load conditions [9,10]. To address this issue, research has addressed different aspects, for example, new semiconductor and materials technologies [11,12], package architecture [13], interconnection [14], control of power electronic modules [15] and advanced cooling technologies [5,16].…”

Section: Introductionmentioning

confidence: 99%

Observer based dynamic adaptive cooling system for power modules

Xiang

Castellazzi

Zanchetta

2016

Microelectronics Reliability

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This paper presents an advanced dynamic cooling strategy for multi-layer structured power electronic modules. A observer based feedback controller is proposed to reduce a power device or module's thermal cycle amplitude during operation, with the aim of improving reliability and lifetime. The full-state observer design is based on a developed Cauer type thermal model.The observer enables estimation and control of the temperature at reliability critical locations only measuring one accessible location. This makes the method particularly powerful and suitable for application in power systems.The designed strategy is confirmed experimentally. Although the experiment is developed for a specific application scenario, the proposed strategy is of general validity.

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“…An accurate estimation of that constant and/or emulation of the realistic capacitor behavior is of a key importance for fast transient response control methods [1]- [4] and implementation of the power stage health monitoring systems [5]- [7]. In the fast transient response methods allowing for the output capacitance reduction, emulation of the realistic capacitor behavior is often used to determine the output capacitor current and, consequently, produce near timeoptimal dynamic response [1]- [4].…”

Section: Introductionmentioning

confidence: 99%

“…In the fast transient response methods allowing for the output capacitance reduction, emulation of the realistic capacitor behavior is often used to determine the output capacitor current and, consequently, produce near timeoptimal dynamic response [1]- [4]. The monitoring of the output capacitance time constant in power stage healthmonitoring systems drastically improves system reliability [5]- [7]. It enables early fault detection, timely repairs, and consequent prevention of one of the main sources of drastic power supply failures [7].…”

Section: Introductionmentioning

confidence: 99%

Noninvasive self-tuning output capacitor time constant estimator for low power digitally controlled DC-DC converters

Radić

Baik

Straka

et al. 2013

2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

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A passive and hardware efficient output capacitor time-constant estimator for digitally controlled dc-dc converters is introduced. The estimator emulates the equivalent RC circuit of the output capacitor with a much smaller version, placed in parallel, and adjusts its own resistance until the two circuits have the same time-constant. The adjustment is based on a very simple zero voltage crossing detection and synchronization with the digital pulse-width modulator operation.The effectiveness of the proposed estimator is illustrated using a 5V-to-1V/5A, 500kHz buck converter demonstrating accuracy within a few tens of ns in the detection of capacitor zero current crossing points.

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An Online and Noninvasive Technique for the Condition Monitoring of Capacitors in Boost Converters

Cited by 107 publications

References 18 publications

Observer based temperature control for reduced thermal cycling in power electronic cooling

Observer based temperature control for reduced thermal cycling in power electronic cooling

Observer based dynamic adaptive cooling system for power modules

Noninvasive self-tuning output capacitor time constant estimator for low power digitally controlled DC-DC converters

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