Performance evaluation of an IGBT module by thermal analysis using fiber Bragg grating

Bazzo, João Paulo; Lukasievicz, Tiago; Vogt, Marcio; Martins, Mário; Kalinowski, Hypolito José; Silva, Jean C. C.

doi:10.1117/12.866360

Cited by 4 publications

(7 citation statements)

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“…It can also be observed that the peak power generated by the ON-OFF switching losses (turn-ON at t=4 s and turn-OFF at t=24 s) is not detected by the sensor. This is because of the interrogator acquisition rate, which is limited to 2 kHz, and a 2 MHz sampling rate is required for such a measurement [8]. Another fact is that the low energy dissipated during the switching process is not sufficient to sensitize the sensor (further demonstrated through model simulation).…”

Section: Resultsmentioning

confidence: 99%

“…The resistive load keeps a fixed value of current I c during the IGBT conduction state. The idea is to maintain the same power dissipation and measure the resulting change in temperature [8]. The junction temperature is monitored by a fiber Bragg grating sensor placed inside of the module, in direct contact with the IGBT wafer, as shown in Figure 1(b).…”

Section: Experimental Setup and Methodologymentioning

confidence: 99%

“…In this paper a new technique to directly monitor the junction temperature of the IGBT under transient condition is presented. The measurement relies on an optical fiber Bragg grating sensor positioned on top of the IGBT [8]. Due to the sensor's electromagnetic immunity and fast response time (order of microseconds), direct measurement can be done reliably [9] [10].…”

Section: Introductionmentioning

confidence: 99%

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Thermal characteristics analysis of an IGBT using a fiber Bragg grating

Bazzo

Lukasievicz

Vogt

et al. 2012

Optics and Lasers in Engineering

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This paper proposes a new method to develop a thermal model of an insulated gate bipolar transistor (IGBT) employing an optical fiber sensor mounted on the chip structure. Some features of the sensor such as electromagnetic immunity, small size and fast response time, allow the identification of temperature changes generated by the energy loss during device operation through direct measurement. In fact, this measurement method is considered impossible with conventional sensors. The online monitoring of the junction temperature enables identify the thermal characteristics of the IGBT. The results are used to develop an accurate model to simulate the heat generated during the device conduction and switching processes. The model showed a difference of only 0.3% between measured and simulated results, besides allowing evaluate separately the heat generated by each turn-ON/OFF process.

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Section: Resultsmentioning

confidence: 99%

Section: Experimental Setup and Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Thermal characteristics analysis of an IGBT using a fiber Bragg grating

Bazzo

Lukasievicz

Vogt

et al. 2012

Optics and Lasers in Engineering

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“…large currents, which may lead to severe damage to reliability of the motor controller [2]. The radiator of motor controller mainly consists of air-cooled and water-cooling structures.…”

Section: Introductionmentioning

confidence: 99%

A Design Method of Air-Cooled Radiator Based on Electric Aircraft Controller

Wang

Cui²,

et al. 2020

IEEE Access

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The air-cooled motor controller has been widely used in electric aircraft due to its simple heat dissipation structure and maintenance-free features. Being the main heating component of the electric propulsion system of electric aircraft, the weight and the volume of the air-cooled motor controller need to be strictly controlled. Due to the short power running time of the electric motor controller, there is a large weight and volume allowance margin for the air-cooled radiatorbased on the rated power and heat dissipation requirements of the motor controller.This paper proposes an air-cooled radiator design method that can reduce its volume and weight by optimizing its structure based on the operating conditions of the electric aircraft under the heat dissipation requirements.The structure of the air-cooled motor can be optimized by optimizing the structure the minimum structure of the motor controller radiator constrained by the maximum temperature of the Insulated Gate Bipolar Transistor (IGBT) module,which can be determined using an algorithm called the motor controller thermal resistance network model. Experimental results obtained from a prototype test on a two-seat electric aircraft demonstrate the effectiveness of the optimization method. The air-cooled radiator designed using the proposed method can be reduced by 5% in weight while meeting the heat dissipation requirements of the motor controller of the electric aircraft.

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“…Recent developed models [24], based on thermal information supplied in datasheets, are not accurate enough because of the lack of heat coupling effects among adjacent layers. Measurement and estimated temperature data based thermal modelling approaches are also assessed by thermocouples [25], infrared cameras [26], optical fibers [27,28] and direct measurement of voltage drop [29][30][31][32]. Thermal modelling is generally limited to the die and base plate temperatures in such models [33].…”

Section: Introductionmentioning

confidence: 99%

3D thermal model of power electronic conversion systems for wind energy applications

Batunlu

Musallam

2014

IEEE Global Humanitarian Technology Conference (GHTC 2014)

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Energy is vital for continual progress of human civilization. Accessing to low-cost, environmental friendly, renewable energy sources are keys to economic future for developing countries and around the globe. Wind energy systems are one of the most adequate option where power electronic converters are used for monitoring and conditioning the energy flow; however operating environmental conditions such as variable wind speed cause temperature fluctuations that derive degradation and failures in these systems. Therefore, proper thermal management and control are necessary to monitor their reliability and lifecycle. Besides, power capacity of these devices is being increased by new technological improvements such as multichip designs. Meanwhile, the heat path through the devices has also become more complex due to the heat coupling effect among several chips and it is not possible to be estimated by conventional methods found in literature. In this paper, a three dimensional finite element model (FEM) is implemented for accurate estimation of thermal profile of a power module. Based on the thermal characteristic obtained by the FEM, an electro thermal model was developed to predict the temperatures of each layer of the power module that cannot be measured during service. The work is essential as it solves massive heat transfer issues and it is important to provide health management of power electronics embedded in wind systems. Keywords-Insulated gate bipolar transistor (IGBT); two level converter; electro thermal model; junction temperature; 3D FEM.

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Performance evaluation of an IGBT module by thermal analysis using fiber Bragg grating

Cited by 4 publications

References 0 publications

Thermal characteristics analysis of an IGBT using a fiber Bragg grating

Thermal characteristics analysis of an IGBT using a fiber Bragg grating

A Design Method of Air-Cooled Radiator Based on Electric Aircraft Controller

3D thermal model of power electronic conversion systems for wind energy applications

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