Auxiliary power supply for solid state transformer with ultra high voltage capacitive driving
Auxiliary power supply for solid state transformer with ultra high voltage capacitive driving
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DOI：
10.1109/apec.2015.7104472
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发表时间：
2015-03
期刊：
影响因子：
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通讯作者：
Sheng Zong;Qianlai Zhu;Yu Wensong;A. Huang
中科院分区：
文献类型：
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作者：
Sheng Zong;Qianlai Zhu;Yu Wensong;A. Huang
本文提出了一种用于固态变压器（SST）的辅助电源（APS），它能够处理极高的输入电压。该电路采用输入串联输出并联（ISOP）结构，仅用一个控制芯片调节输出电压，简化了电路结构，有效地降低了成本。电容驱动用于驱动APS的不同模块中的多个开关。所提出的电容驱动方法即使在数千伏的电压下也能够同时传输栅极信号和驱动能量，这大大降低了APS的成本和尺寸。最后通过一台12W的样机对所提出的辅助电源进行了验证。
This paper proposes an auxiliary power supply (APS) for solid state transformers (SST), which is able to handle extremely high input voltage. Input series output parallel (ISOP) structure is used and only one controller IC is adopted to regulate the output voltage, which simplifies the structure and reduces the cost effectively. Capacitive driving is used to drive multiple switches in different modules of the APS. The proposed capacitive driving method is able to transfer gate signal and driving energy simultaneously even for thousands of volts, which largely reduces the cost and size of the APS. Finally the proposed auxiliary power supply is verified and demonstrated through a 12W prototype.