Investigation of the output droop characteristics of parallel-connnected DC-DC converters
Investigation of the output droop characteristics of parallel-connnected DC-DC converters
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并联 DC-DC 转换器的输出下降特性研究
DOI：
10.1109/pesc.1994.373859
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
H. Lee
中科院分区：
文献类型：
--
作者：
I. Batarseh;K. Siri;H. Lee
分析证明并联 DC-DC 电源转换器的输出电压下降特性仅适用于非常有限的应用。由于转换器很少被制成相同的，因此只有当并联连接的转换器具有非常接近理想电流源的相似特性时，才能实现无需额外控制的近均匀均流。这可能会以电压调节不良为代价。作为替代方案，提出了不需要遥感的均流控制技术。该技术确保在整个指定负载范围内均匀或指定的电流分布。控制电路模块是独立实现的，无需任何预备知识或对源转换器进行任何电路修改。<<ETX>>
The analytical proof that output voltage droop characteristics of parallel-connected DC-DC power converters are only appropriate for very limited applications is presented. Because the converters are rarely made to be identical, near-uniform current-sharing without additional control can be achieved only when converters connected in parallel have similar characteristics of being very close to the ideal current sources. This can occur at a cost of poor voltage regulation. As an alternative, the current-sharing control technique, which requires no remote-sensing, is proposed. The technique ensures uniform or designated current distribution throughout the specified load range. A control circuit module is independently implemented without any preliminary knowledge or any circuit modification of the source converters.<<ETX>>