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应用全控型大功率半导体开关元件IGBT及PWM控制技术,设计一种新型的机车负载试验台干阻试验台。通过PWM脉宽控制,实现机车干阻试验台中风冷电机的恒流控制和负载的连续可调。还介绍了IGBT实际应用中的驱动和保护方面的问题。
Application of full-controlled high-power semiconductor switching element IGBT and PWM control technology, the design of a new type of locomotive load test bench dry resistance test stand. Through the PWM pulse width control, the constant current control of the air-cooled motor and the continuous adjustable load of the locomotive dry-resistance test bench can be realized. Also introduced the practical application of IGBT drive and protection issues.