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In this paper, the circuit topology of single-stage isolated charging/discharging DC-AC converter with second harmonic current suppression is proposed. Based on which an analogous-rectifying unipolar phase-shifted control strategy with constant charging/discharging current is also proposed, which rectifies the Sinusoidal Pulse Width and Position Modulation(SPWPM) wave of high-frequency(HF) transformer...
One important test for the formation and grading of a lithium-ion battery is to confirm the performance of the battery while discharging it down to zero volts. In this paper, a novel soft-switching charge/discharge converter with the zero voltage discharge function is proposed. The proposed converter is able to discharge a battery until its voltage reaches zero volts. The phase-shift full-bridge method...
A low-loss, constant-frequency, zero voltage switching (ZVS) modulation strategy for bidirectional buck dc-dc converter, applied to hybrid energy storage system, is proposed in this paper. The synchronous rectification and soft-switching techniques are adopted to reduce the power conversion loss. As the modulation strategy is a software-only solution, there are no additional expenses for the active...
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