An Optimized Sensorless Charge Balance Controller Based on a Damped Current Model for Flyback Converter Operating in DCM
An Optimized Sensorless Charge Balance Controller Based on a Damped Current Model for Flyback Converter Operating in DCM
复制标题
基于阻尼电流模型的优化无传感器电荷平衡控制器,适用于 DCM 运行的反激式转换器
DOI:
10.3390/en11123478
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发表时间:
2018-12
期刊:
影响因子:
--
通讯作者:
Run Min
中科院分区:
文献类型:
--
作者:
Run Min
This paper presents an Optimized Sensorless Charge Balance (OSCB) controller based on a damped current model for flyback converter operating in Discontinuous Conduction Mode (DCM). By solving total differential equations of non-ideal transformer currents, the damped current model is derived with consideration of parasitics, leakage inductance of transformer, and the Resistor-Capacitor-Diode (RCD) snubber circuit. Based on the proposed model, current observation and control algorithms of the Sensorless Charge Balance (SCB) controller are optimized, which forms the OSCB control strategy. The average current damping is considered in the equivalent discrete-time small signal model. Furthermore, frequency analyses show that OSCB controller achieves higher closed-loop bandwidth and lower overshoot than a SCB controller, which indicates an improved transient performance. Finally, both OSCB and conventional SCB controllers are experimentally evaluated on a flyback converter prototype.
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DOI:
10.1109/aicera-icmicr.2013.6576018
发表时间:
2013-06
期刊:
2013 Annual International Conference on Emerging Research Areas and 2013 International Conference on Microelectronics, Communications and Renewable Energy
影响因子:
--
作者:
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DOI:
10.1109/ipec.2014.6869635
发表时间:
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期刊:
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影响因子:
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DOI:
10.1109/epe.2015.7309223
发表时间:
2015-09
期刊:
2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)
影响因子:
--
作者:
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通讯作者:
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影响因子:
6.7
作者:
通讯作者:
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影响因子:
7.7
作者:
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通讯作者:
Liu, Zhenglin