In this paper, we propose a method to monitor the thermal parameters of insulated gate bipolar transistor (IGBT) module using junction temperature cooling curves. Relationship between time constants curves and Cauer model is established for condition monitoring. Advantages proposed approach include no need measure power loss heat equilibrium. Simulation experimental tests are performed verify accuracy effectiveness method. Results show that can not only parameter single layer, but also...

SiC-based wide bandgap semiconductor devices such as metal-oxide-semiconductor field-effect transistors (MOSFETs) are gradually replacing Si in industrial applications because of their excellent electrothermal properties. However, the reliability these and problem junction temperature estimation concerns that yet to be resolved for applications. This article proposes a method measure Cauer-type RC thermal network parameters consider influence degradation external cooling system using either...

The open self-ventilated cooling system is an important component to dissipate heat in urban rail vehicles. While after long-term operation, the will deteriorate, which ultimately affects reliable operation of traction converter. In this article, we propose a method monitor health status vehicles using temperature response curve negative coefficient thermistor built IGBT module. Backpropagation neural network employed predict reference healthy state under different working conditions and...

As the core of conventional power electronics, reliability problem Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFETs) severely restricts safe operation equipment. Accurate prediction remaining useful life (RUL) MOSFETs is key to achieve prognostic and health management (PHM) condition-based maintenance (CBM). In this paper, long short-term memory (LSTM) networks are combined with adaptive moment estimation algorithm, Dropout techniques Bayesian optimization methods improve accuracy...

The cooling system, including the thermal grease, heatsinks, plays an important role in power converters for its reliable operation. While long-term operation situation, system will degrade with different kinds of failure mechanism components and finally result damage to converters. In this paper, method was proposed monitor network parameters using curves junction temperature. By establishing relationship between RC Cauer time constants curves, about can be obtained. Experimental tests are...

Accurate prediction of the remaining useful life (RUL) metal oxide semiconductor field effect transistors (MOSFETs) is key to safe and reliable operation power electronics. In this paper, we combine long short-term memory (LSTM) networks with successive variational mode decomposition (SVMD) use error compensation methods build a lifetime model, which improves performance model by reducing interaction between different sequences using sequence compensation. The results show that, compared...

This letter utilizes the turning point of preheating stage case temperature <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">T_c</i> as an efficient indicator for condition monitoring insulated gate bipolar transistor modules, which could be extracted from dynamic response . Theoretical analysis shows that will increase with aging process, and its effectiveness is experimentally verified. method only requires sensor to measure...

In this paper, we propose a new method to monitor the thermal path degradation of IGBT module using time constants junction temperature cooling curve. The correlation between and Cauer-type parameters is investigated. Results show that can be monitored by detecting variation constants. Simulation experimental tests are performed verify effectiveness proposed method.

Thermal grease gets generally application in power device, for its high-efficient thermal conducting performance. While the long-term operating situation, will degrade with pump-out and dry-out phenomenon do harm to heat dissipation of devices, so it is necessary monitor states grease. In this paper, we propose a method resistance using cooling curves junction temperature. By establishing relationship between RC parameters Cauer network time constants curves, about can be obtained....

This article proposes a novel condition monitoring method for heatsink of traction inverter urban rail train by detecting the change temperature dynamic curves. Artificial neural network is used to predict reference curves healthy state under various working conditions, and differences between are extracted one-way distance algorithm. suitable train, because first it meets diversity operation conditions nonthermal equilibrium inverter. Moreover, its implementation does not cause intrusion...

SiC MOSFET is gathering more important in the industrial field for its excellent electro-thermal properties. To investigate thermal performance of module, network parameters most dramatic method. This paper proposed a method to measure module Cauer type by establishing relation between and time constants case temperature cooling curves. The achieves no need thermal-equilibrium state, power losses even measurement junction temperature. experiment carried out results prove feasibility

This paper proposed a novel junction temperature monitoring method for power modules based on two-port thermal network, in which the T <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ja</inf> and case xmlns:xlink="http://www.w3.org/1999/xlink">ca</inf> are taken as virtual external nodes. The transfer relationship between is firstly investigated Laplace domain, then be transferred to time domain. Theoretical analysis shows that could expressed...

In this paper, we proposed a method for monitoring the thermal impedance of IGBT module and interface material (TIM) using case temperature cooling curves. Advantages approach include no need to measure power loss heat steady state. Experimental tests are performed verify effectiveness method. Results indicate that not only can monitor aging process module, but also degradation TIM.

The cooling system plays an important role in the safe operation of traction converters for urban rail trains. While long-term operation, would suffer from various failures, reducing heat dissipation performance and even causing damage to converter. Thus, it is necessary monitor health status system. This paper proposes use temperature response curve negative coefficient (NTC) thermistor built IGBT module as indicator converters. Back Propagation Neural Network (BPNN) employed predict...

In this paper, we proposed a new method to monitor the IGBT thermal path degradation of module using peak rise rate appearance time case temperature right below center chip during start-up process converter. The correlation between and 3 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">rd</sup> -order Cauer parameters is analyzed. Results show that can be monitored by detecting time. Simulation experimental tests are performed verify effectiveness method.