集成门极换流晶闸管
绝缘栅双极晶体管
晶闸管
可靠性(半导体)
材料科学
功率(物理)
功率半导体器件
计算机科学
结温
二极管
作者
Madhan Mohan,Anup Kavimandan,Umamaheswara Vemulapati,Evgeny Tsyplakov,Munaf Rahimo
出处
期刊:PCIM Europe 2018; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
日期:2018-06-05
卷期号:: 1-7
摘要
IGCTs have become the device of choice for high power applications, low losses and high reliability. They have been widely equipped in many Voltage Source Converters (VSC) for industry applications such as drives and railway interties etc. Converters employing IGCTs typically require a clamp circuit to eliminate hard turn-on of IGCT and control the diode recovery. A di/dt limiting circuit is required for the protection of freewheeling diodes from huge current derivatives and an over voltage limiting mechanism for the protection of IGCTs. This paper presents the performance evaluation of IGCT Clamp Circuit in terms of losses, as a function of load current in SEMIS (Semiconductor Simulation Tool). The proposed method based on dynamic measurement test data yields an accurate, yet computationally efficient method of loss calculation. Additionally, it also considers the temperature dependency of the reverse recovery current for the freewheeling diode losses. The results obtained from PLECS simulations for 6.5 kV, 150 mm RC-IGCT were compared against the results obtained from Synopsys TCAD, a semiconductor device simulation tool, for the same device with the same set of operating conditions. The results show a close match in terms of the clamp resistor energies during GCT and diode commutations.
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