Control of Reactive Power for Stabilized Junction Temperature in Power Electronic Devices Serving to a 250-MW Asynchronous Hydrogenerating Unit

2019 ◽  
Vol 55 (6) ◽  
pp. 7854-7867 ◽  
Author(s):  
Karthik Desingu ◽  
Raghu Selvaraj ◽  
Thanga Raj Chelliah
Keyword(s):  
Reactive Power ◽  
Electronic Devices ◽  
Junction Temperature ◽  
Power Electronic

The Research of PWM Controlling Capacitance SVC Based on RB-IGBT

2010 ◽  
Vol 44-47 ◽  
pp. 3970-3975
Author(s):  
Ke Wang ◽  
Bin Chen ◽  
Wen Han Chen ◽  
Hua Xu ◽  
Jia Xin Yuan
Keyword(s):  
Reactive Power ◽  
Electronic Devices ◽  
Reactive Power Compensation ◽  
Power Electronic ◽  
Practical Application ◽  
Advantages And Disadvantages ◽  
Compensation Principle ◽  
New Type

At first, this paper compared the present some advantages and disadvantages of reactive power compensation devices, and analysis the disadvantages of these devices in practical application deficiencies, then put forward a new kind of reactive power compensation principle. With the development of power electronic devices, this paper put forward a new type of reactive power compensation which based on RB-IGBT of SVC mode, synthesize the advantages of domestic reactive power compensation devices at present, and the prospect of application is very good.

Simulation Study of Harmonics and Reactive Power in Three-Phase Full-Bridge Controlled Rectifier Circuit with Resistance-Inductance Load

2011 ◽  
Vol 383-390 ◽  
pp. 621-626
Author(s):  
Yu Fei Wang ◽  
Chang Hui Yang ◽  
Hua Xue ◽  
Xiu Yang
Keyword(s):  
Power Factor ◽  
Simulation Study ◽  
Reactive Power ◽  
Simulation Analysis ◽  
Electronic Devices ◽  
Power Electronic ◽  
Specific Design ◽  
Matlab Simulink ◽  
Rectifier Circuit ◽  
Three Phase

In order to evaluate the harm and impact of power electronic devices on the grid and provide numerical basis for specific design of the corresponding compensated devices, the harmonics and reactive power of three-phase full-bridge controlled rectifier circuit with resistance-inductance load are studied in this paper. Firstly, the harmonics and power factor of the ac side current are analyzed theoretically; the harmonics contents and power factor are calculated. Secondly, the model of three-phase full-bridge controlled rectifier circuit is built in Matlab/Simulink, and the simulation analysis of the ac side power factor and harmonics is achieved, the simulated values are similar to the theoretical values. The results show that the complex calculations of harmonics and power factor can be completed simply and intuitively using simulation study, the simulation study is efficient and accurate.

SABER-Based Simulation for Compact Dynamic Electro-Thermal Modeling Analysis of Power Electronic Devices

2011 ◽  
Vol 291-294 ◽  
pp. 1704-1708
Author(s):  
Ming Chen ◽  
An Hu ◽  
Yong Tang ◽  
Bo Wang
Keyword(s):  
Temperature Distribution ◽  
Network Model ◽  
Thermal Model ◽  
Electronic Devices ◽  
Power Converter ◽  
Junction Temperature ◽  
Power Electronic ◽  
Electrical Model ◽  
Thermal Component ◽  
Infrared Thermal Imaging

Power electronic modules including insulated gate bipolar transistor (IGBT) are widely used in the field of power converter application. The temperature distribution inside these modules becomes more important for electrical characteristics, reliability and lifetime of integrated power electronic modules. In this paper, a seven-layer compact RC thermal component network model based on the physical structure is presented. A dynamic electro-thermal model, which is composed of electrical model, compact RC thermal component network model and electro-thermal interface is developed for the IGBT. These models interact with each other to calculate the temperature of each layer of module and parameters of each model. The thermal model determines the evolution of the temperature distribution within the thermal network and thus determines the instantaneous junction temperature used by the electrical model. Such built dynamic electro-thermal simulation methodology is implemented in the Saber circuit simulator, and the simulation result is validated by the experimental study, which adopted with infrared thermal imaging camera. The built dynamic electro-thermal model could be helpful for the research on operation performance and heat sink design for such power electronic devices.

scholarly journals Research on junction temperature detection method of power electronic devices based on turn-off time and turn-off loss

2022 ◽  
Vol 8 ◽  
pp. 163-170
Author(s):  
Lingfeng Shao ◽  
Guoqing Xu ◽  
Weiwei Wei ◽  
Xichun Zhang ◽  
Huiyun Li ◽  
...  
Keyword(s):  
Detection Method ◽  
Electronic Devices ◽  
Junction Temperature ◽  
Power Electronic ◽  
Temperature Detection ◽  
Off Time

scholarly journals Research on Improved Droop Control Strategy of Microsource Inverter Based on Internet of Things

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Di Bai ◽  
Tieyan Zhang ◽  
Zheng Yang
Keyword(s):  
Control Strategy ◽  
Power Supply ◽  
Power Distribution ◽  
Reactive Power ◽  
Control Method ◽  
Electronic Devices ◽  
Stable Operation ◽  
Power Electronic ◽  
Distributed Power ◽  
Virtual Impedance

Microgrid connects the distributed power supply with the assistance of power electronic devices. Power electronic devices, especially in the inversion link, play a crucial role in the access of distributed power to microgrid. Whether in grid-connected mode or island mode, the control method of inverters is related to the stable operation of distributed power supply and plays an important role in the control strategy of microgrid. In this paper, by adding the drop control of controllable virtual impedance, the power coupling problem caused by resistive line impedance is reduced, and virtual impedance key points such as voltage feedback and frequency compensation are added. By optimizing the power reference value, the parallel operation stability of the control strategy is improved. The experimental results show that the proposed method improves not only the stability of the system and the power quality but also the accuracy of reactive power distribution.

scholarly journals An R-L Static Var Compensator (SVC)

2020 ◽  
Vol 5 (12) ◽  
pp. 46-51
Author(s):  
A. J. Onah ◽  
E. E. Ezema ◽  
I. D. Egwuatu
Keyword(s):  
Power Factor ◽  
Reactive Power ◽  
Electronic Devices ◽  
Switched Capacitor ◽  
Power Electronic ◽  
Static Var Compensator ◽  
Unity Power Factor ◽  
Static Var Compensators ◽  
Thyristor Controlled Reactor ◽  
Shunt Reactors

Traditional static var compensators (SVCs) employ shunt reactors and capacitors. These standard reactive power shunt elements are controlled to produce rapid and variable reactive power. Power electronic devices like the thyristor etc. are used to switch them in or out of the network to which they are connected in response to system conditions. There are two basic types, namely the thyristor-controlled reactor (TCR), and the thyristor-switched capacitor (TSC). In this paper we wish to investigate a compensator where the reactor or capacitor is replaced by a series connected resistor and reactor (R-L). The performance equations are derived and applied to produce the compensator characteristics for each of the configurations. Their performances are compared, and the contrasts between them displayed. All three configurations are made to achieve unity power factor in a system.

scholarly journals Development of junction temperature monitoring platform for IGBT charging device adapted to the integration of charging, light and storage

2021 ◽  
Vol 292 ◽  
pp. 01020
Author(s):  
Yu Wenbin ◽  
Wu Bin ◽  
Jia Junguo ◽  
Zhang Feng
Keyword(s):  
High Voltage ◽  
Electronic Devices ◽  
Measured Data ◽  
Fault Analysis ◽  
Junction Temperature ◽  
Power Electronic ◽  
Temperature Calculation ◽  
New Energy ◽  
And Storage ◽  
Monitoring Platform

With the continuous development of new energy, the power and capacity configuration of charging devices is getting larger and larger, and there are more and more data nodes that charging devices need to manage and monitor. In order to improve the security of the system, it is necessary to monitor the node information of each device in real time. This paper summarizes the data required for high-voltage modelling and junction temperature calculation of high-voltage power electronic devices to develop a monitoring platform for charging devices. The platform records the data of each module in the charging device online, and provides measured data for equipment selection and fault analysis of the charging device. At the end of the article, some experiments were carried out to verify the operation effect of the monitoring platform.

scholarly journals Research on Small Square PCB Rogowski Coil Measuring Transient Current in the Power Electronics Devices

Sensors ◽  
2019 ◽  
Vol 19 (19) ◽  
pp. 4176 ◽  
Author(s):  
Chaoqun Jiao ◽  
Juan Zhang ◽  
Zhibin Zhao ◽  
Zuoming Zhang ◽  
Yuanliang Fan
Keyword(s):  
Power Electronics ◽  
Printed Circuit Board ◽  
Electronic Devices ◽  
Rogowski Coil ◽  
Bipolar Transistors ◽  
Circuit Board ◽  
Power Electronic ◽  
Insulated Gate Bipolar Transistors ◽  
Printed Circuit ◽  
Internal Structures

With the development of China’s electric power, power electronics devices such as insulated-gate bipolar transistors (IGBTs) have been widely used in the field of high voltages and large currents. However, the currents in these power electronic devices are transient. For example, the uneven currents and internal chip currents overshoot, which may occur when turning on and off, and could have a great impact on the device. In order to study the reliability of these power electronics devices, this paper proposes a miniature printed circuit board (PCB) Rogowski coil that measures the current of these power electronics devices without changing their internal structures, which provides a reference for the subsequent reliability of their designs.

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