摘要
单元串联型高压大功率逆变器脉宽控制原理器件承受的最高电压为功率单元的直流母线电压,可直接使用低压功率器件,器件不必串联,不存在器件均压问题。功率单元采用低压IGBT功率模块,驱动电路简单,技术成熟可靠,只要改变每相功率单元的串联个数或每个功率单元的耐压等级,就可叠加成不同等级的高压输出。
The maximum voltage,which the device of PWM Control Design Principle for the High Voltage Invert with High Power can support,is the DC-bus voltage of the power unit.The Low-voltage device can be used without cascade because there is no problem in voltage-sharing of each device.The low-voltage IGBT power module is adopted in the power unit as it has simple drive circuit,mature and reliable technology.It can be superposed to a high-voltage output of different grades by changing the amounts of device cascaded into each power unit or the pressure level of each power unit.
出处
《电脑知识与技术（过刊）》
2011年第4X期2703-2705,共3页
Computer Knowledge and Technology
关键词
单元串联
叠加
高压
cascaded unit
superposition
high voltage
