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引用次数: 0
摘要
针对igbt的在线状态监测，提出了一种利用瞬时高z栅极驱动(MHZGD)从栅极驱动器输出电压(VOUT)估计igbt结温(TJ)和负载电流(IL)的新方法，该方法可集成到栅极驱动集成电路中。TJ由MHZGD期间和之后的VOUT差估计，IL由MHZGD期间的VOUT估计。三种igbt分别在25°C至125°C的11种不同TJ和12.5 A至80 A的10种不同IL下进行了110次开关测量，在低测试成本参数确定方法中，TJ和IL估计误差分别为+ 4.9°C /−8.4°C和+ 1.1 A /−4.3 A。相比之下，小误差参数确定方法的TJ和IL估计误差分别为+ 4.9°C /−8.1°C和+ 1.0 a /−1.8 a。
Estimation of Both Junction Temperature and Load Current of IGBTs from Output Voltage of Gate Driver
For the online condition monitoring of IGBTs, a new estimation method of both the junction temperature (TJ) and the load current (IL) of IGBTs using a momentary high-Z gate driving (MHZGD) from the output voltage (VOUT) of the gate driver is proposed, which can be integrated into the gate driver ICs. TJ is estimated from VOUT difference during and after the MHZGD period, and IL is estimated from VOUT during MHZGD. In the 110 switching measurements at 11 different TJ's from 25 °C to 125 °C and 10 different IL's from 12.5 A to 80 A for each of the three IGBTs, TJ and IL estimation errors in a low test cost parameter determination method are + 4.9 °C / − 8.4 °C and + 1.1 A / − 4.3 A, respectively. In contrast, TJ and IL estimation errors in a parameter determination method with small error are + 4.9 °C / − 8.1 °C and + 1.0 A / − 1.8 A, respectively.
期刊介绍：
IEEJ Journal of Industry Applications: Power Electronics - AC/AC Conversion and DC/DC Conversion, - Power Semiconductor Devices and their Application, - Inverters and Rectifiers, - Power Supply System and its Application, - Power Electronics Modeling, Simulation, Design and Control, - Renewable Electric Energy Conversion Industrial System - Mechatronics and Robotics, - Industrial Instrumentation and Control, - Sensing, Actuation, Motion Control and Haptics, - Factory Automation and Production Facility Control, - Automobile Technology and ITS Technology, - Information Oriented Industrial System Electrical Machinery and Apparatus - Electric Machines Design, Modeling and Control, - Rotating Motor Drives and Linear Motor Drives, - Electric Vehicles and Hybrid Electric Vehicles, - Electric Railway and Traction Control, - Magnetic Levitation and Magnetic Bearing, - Static Apparatus and Superconductive Application Publishing Ethics of IEEJ Journal of Industry Applications: Code of Ethics on IEEJ IEEJ Journal of Industry Applications is a peer-reviewed journal of IEEJ (the Institute of Electrical Engineers of Japan). The publication of IEEJ Journal of Industry Applications is an essential building article in the development of a coherent and respected network of knowledge. It is a direct reflection of the quality of the work of the authors and the institutions that support them. IEEJ Journal of Industry Applications has "Peer-reviewed articles support." It is therefore important to agree upon standards of expected ethical behavior for all parties involved in the act of publishing: the author, the journal editor, the peer reviewer and IEEJ (the Institute of Electrical Engineers of Japan).
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