断续导电模式单相AC/DC变换器的控制器设计
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摘要
对一种功率开关置于整流器桥臂内部的可升降压型单相AC/DC变换器,建立其平均模型、小信号模型,采用合适的电压补偿器,得到系统的控制结构。通过合理的参数选择,使得控制系统具有较大裕量的开环幅频与相频特性。对采用该控制结构和电气参数的单相AC-DC变换器进行仿真分析和结果验证。
As for a step up/down single-phase AC-DC converter with a power switch placed inside the rectifier bridge arm,the average model and small signal model were established,and the control structure of the system was obtained by using a suitable voltage compensator. By the reasonable selection of parameter,the converter control system is designed with larger margin open loop amplitude frequency characteristic and phase frequency characteristic. The single-phase AC-DC converter using the control structure and electrical parameters was verified by the simulation results.
As for a step up/down single-phase AC-DC converter with a power switch placed inside the rectifier bridge arm,the average model and small signal model were established,and the control structure of the system was obtained by using a suitable voltage compensator. By the reasonable selection of parameter,the converter control system is designed with larger margin open loop amplitude frequency characteristic and phase frequency characteristic. The single-phase AC-DC converter using the control structure and electrical parameters was verified by the simulation results.
引文
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[6]徐德鸿.电力电子系统建模及控制[M].北京:机械工业出版社,2006.
[7]张卫平.开关变换器的建模与控制[M].北京:中国电力出版社,2006.
[2] FAIRCHILD. FAN9672 Two-Channel Interleaved CCM PFC Controller[M]. 2016.
[3] FAN L R,SUN F T,HUI L I,et al. Research on the saber simulation application based on the single-phase staggered type paralleled PFC[J]. Telecom Power Technology,2014,66(7):653-656.
[4] YANG L S,LIANG T J,CHEN J F. Analysis and design of a novel three-phase AC–DC buck-boost converter[J]. IEEE Transactions on Power Electronics,2008,23(2):707-714.
[5] TOU M,AL-HADDAD K,OLIVIER G,et al. Analysis and design of single-controlled switch three-phase rectifier with unity power factor and sinusoidal input current[J]. IEEE Trans. Power Electron.,1997,12(4):608-614.
[6]徐德鸿.电力电子系统建模及控制[M].北京:机械工业出版社,2006.
[7]张卫平.开关变换器的建模与控制[M].北京:中国电力出版社,2006.