A feedback-type dead-time compensation method for high-frequency PWM inverter — Delay and pulse width characteristics
A feedback-type dead-time compensation method for high-frequency PWM inverter — Delay and pulse width characteristics
复制标题
DOI：
10.1109/apec.2012.6165804
复制
发表时间：
2012-03
期刊：
影响因子：
--
通讯作者：
M. Ogawa;S. Ogasawara;M. Takemoto
中科院分区：
文献类型：
--
作者：
M. Ogawa;S. Ogasawara;M. Takemoto
本文讨论了高频脉宽调制（PWM）逆变器的死区补偿方法。反馈式死区补偿可以消除逆变器输出电压的误差。随着下一代开关器件使用SiC，逆变器的开关频率有望提高到传统逆变器的10倍。但随着开关频率的增加，死区时间对输出电压误差的影响更大。本文提出了一种新的补偿方法，可以减小逆变器输出电压的最小输出脉冲宽度和相位延迟。利用高速功率mosfet和现场可编程门阵列控制器构建了实验系统并进行了测试。实验结果验证了该补偿方法的有效性和实用性。
This paper discusses a dead-time compensation method for high-frequency pulse-width modulation (PWM) inverters. Feedback-type dead-time compensation can eliminate error in the inverter output voltage. With next-generation switching devices using SiC, the switching frequency of inverters is expected to improve to 10-fold that of conventional inverters. However, as switching frequency increases, dead time will more strongly affect output voltage error. This paper proposes a new compensation method, which can reduce the minimum output pulse width and the phase delay of the inverter output voltage. An experimental system was constructed and tested, using highspeed power MOSFETs and a field-programmable gate array controller. Experimental results support the validity and usefulness of the proposed compensation method.