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- W4385788808 abstract "Silicon Controlled Rectifier (SCR) thyristor module is one of the core devices in the converter valve of HVDC transmission system, and its loss calculation is of great significance to the reliability analysis of the converter valve device. Thyristors often operate in the alternating environment of high and low voltage, so it is difficult to measure the on state voltage drop, which makes it difficult to ensure the accuracy of online loss calculation. Therefore, this paper proposes an online loss calculation method based on voltage and current characteristic curve for thyristor in converter valve, which can avoid the design of complex turn-on voltage drop measurement circuit. Firstly, based on the thyristor characteristic curve parameters, the relationship model between on state voltage drop, current and junction temperature is established. Secondly, the SCR loss model considering current and temperature changes is constructed, and the corresponding heat transfer model is established. A junction temperature iterative loss estimation model combining the device current, conduction signal and shell temperature information is proposed. Finally, the effectiveness of the proposed loss model is verified by simulation." @default.
- W4385788808 created "2023-08-13" @default.
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- W4385788808 date "2023-01-01" @default.
- W4385788808 modified "2023-10-06" @default.
- W4385788808 title "Calculation Method of Converter Valve Loss Based on Thyristor Voltage-Current Characteristics" @default.
- W4385788808 cites W2908199374 @default.
- W4385788808 doi "https://doi.org/10.1007/978-981-99-3404-1_14" @default.
- W4385788808 hasPublicationYear "2023" @default.
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