采用动态电压上升控制的1700 V大功率IGBT有源门极驱动技术
发布时间：2018-10-05 11:41
【摘要】：为了抑制大功率绝缘栅双极型晶体管(IGBT)的关断电压尖峰,提出了一种有源门极控制方法及其优化方法。该控制方法采用电容反馈关断电压上升率来控制驱动电路,通过具备定时功能的高速高增益放大器降低反馈电容的容值,补偿集电极电流输出响应相对于有源门极控制信号的延时,并保证所提出的有源门极控制方法仅在IGBT关断过程中工作,提高了电路工作的可靠性。通过SABER仿真分析了关键参数对该方法抑制关断电压尖峰效果的影响,提出了一套品质因数评价体系,用于定量评估不同参数下的控制效果。风力发电变流器在极端工况下的实验结果表明,所提出的方法使用较小容值的反馈电容依然能够在仅有400 V电压裕量的严厉条件下降低电流下降速率,从而保证了IGBT的安全工作。
[Abstract]:In order to suppress the turn-off voltage spike of high power insulated gate bipolar transistor (IGBT), an active gate control method and its optimization method are proposed. In this control method, capacitor feedback turn-off voltage rise rate is used to control drive circuit, and the capacity of feedback capacitance is reduced by high speed and high gain amplifier with timing function. Compensation collector current output response to the active gate control signal delay, and ensure that the proposed active gate control method only in the IGBT turn off process, improve the reliability of the circuit. The effect of key parameters on the suppression of turn-off voltage spike is analyzed by SABER simulation. A set of quality factor evaluation system is proposed to quantitatively evaluate the control effect under different parameters. The experimental results of wind power converters under extreme conditions show that the proposed method can reduce the current drop rate under the severe condition of only 400 V voltage margin. In order to ensure the safety of IGBT work.
【作者单位】： 电力设备电气绝缘国家重点实验室;西安交通大学电气工程学院;
【基金】：国家自然科学基金(50707025)~~
【分类号】：TM46;TN322.8
本文编号：2253243
[Abstract]:In order to suppress the turn-off voltage spike of high power insulated gate bipolar transistor (IGBT), an active gate control method and its optimization method are proposed. In this control method, capacitor feedback turn-off voltage rise rate is used to control drive circuit, and the capacity of feedback capacitance is reduced by high speed and high gain amplifier with timing function. Compensation collector current output response to the active gate control signal delay, and ensure that the proposed active gate control method only in the IGBT turn off process, improve the reliability of the circuit. The effect of key parameters on the suppression of turn-off voltage spike is analyzed by SABER simulation. A set of quality factor evaluation system is proposed to quantitatively evaluate the control effect under different parameters. The experimental results of wind power converters under extreme conditions show that the proposed method can reduce the current drop rate under the severe condition of only 400 V voltage margin. In order to ensure the safety of IGBT work.
【作者单位】： 电力设备电气绝缘国家重点实验室;西安交通大学电气工程学院;
【基金】：国家自然科学基金(50707025)~~
【分类号】：TM46;TN322.8
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本文编号：2253243
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