Effect of leakage inductance on the non-isolated push-pull converter with high efficiency

Qian Chen, Trillion Q. Zheng, Yan Li, Tiancong Shao

Research output: Contribution to journalArticle

Abstract

Non-isolated push-pull converter with high efficiency is widely adopted in aeronautic applications due to the superiority of high efficiency, easily controlled system and continuous current. The peak current exists in low-ripple current. The operating modes are added due to leakage inductance. The steady state performance is also affected, which is embodied in the spike of low-ripple current. According to the peak current characteristics, the non-isolated push-pull converters with high efficiency are divided into three types to analyze. Equivalent current sensing method is adopted to avoid the spike disturbance on current sensing, which introduces the current sensing error and reduces the telemetry accuracy. The current sensing error is analyzed to offset telemetry value and enhance telemetry accuracy. Finally, the current sensing error rate of three topologies is compared to verify that the theoretical analysis coincides with experiment results.

Original languageEnglish (US)
Pages (from-to)46-53
Number of pages8
JournalDiangong Jishu Xuebao/Transactions of China Electrotechnical Society
Volume29
Issue number4
StatePublished - Apr 2014

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Telemetering
Inductance
Aviation
Topology
Experiments

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

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abstract = "Non-isolated push-pull converter with high efficiency is widely adopted in aeronautic applications due to the superiority of high efficiency, easily controlled system and continuous current. The peak current exists in low-ripple current. The operating modes are added due to leakage inductance. The steady state performance is also affected, which is embodied in the spike of low-ripple current. According to the peak current characteristics, the non-isolated push-pull converters with high efficiency are divided into three types to analyze. Equivalent current sensing method is adopted to avoid the spike disturbance on current sensing, which introduces the current sensing error and reduces the telemetry accuracy. The current sensing error is analyzed to offset telemetry value and enhance telemetry accuracy. Finally, the current sensing error rate of three topologies is compared to verify that the theoretical analysis coincides with experiment results.",
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Effect of leakage inductance on the non-isolated push-pull converter with high efficiency. / Chen, Qian; Zheng, Trillion Q.; Li, Yan; Shao, Tiancong.

In: Diangong Jishu Xuebao/Transactions of China Electrotechnical Society, Vol. 29, No. 4, 04.2014, p. 46-53.

Research output: Contribution to journalArticle

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