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Strategy research on dual-PWM inverter based on integrated control
Author(s): ZHENG Zheng, ZOU Jin, TAO Haijun
Pages: 371-
375
Year: 2011
Issue:
3
Journal: Engineering Journal of Wuhan University
Keyword: 双PWM变频器; 直流侧电容; 电流直接控制; 电流前馈控制;
Abstract: 在双PWM变频器中,若能实时控制整流侧的输出电流紧紧跟随负载电流,达到快速平衡整流侧和负载侧功率,则中间直流环节的滤波电容储能(或释放)功率将很小,甚至为零,此时可采用极小容量的电容用于滤波,这样不仅减小了系统的体积,而且提高了系统的可靠性以及系统动态响应快速性.对前后两级变换器进行一体化控制,在采用电流前馈控制的基础上,把直流侧电容电流作为内环进行控制,并使电容电流为零,达到了上述控制之目的,仿...
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