基于Buck和移相控制的三相双有源桥变换器黑启动策略

车凯; 伏祥运

doi:10.16513/j.2096-2185.DE.(2025)010-01-0072-09

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分布式能源 ›› 2025, Vol. 10 ›› Issue (1) : 72-80. DOI: 10.16513/j.2096-2185.DE.(2025)010-01-0072-09

学术研究

基于Buck和移相控制的三相双有源桥变换器黑启动策略

车凯 ,
伏祥运

作者信息 +

Black-Start Strategy for Three-Phase Dual Active Bridge Converter Based on Buck and Phase-Shift Control

Kai CHE ,
Xiangyun FU

Author information +

文章历史 +

摘要

大功率双向隔离型DC-DC变换器是直流微网的关键装备，其性能对微电网运行具有重大影响。在微网启动及故障后恢复工作时，隔离型DC-DC变换器往往会产生大冲击电流，给微网的可靠运行带来巨大挑战。基于此，以三相双有源桥变换器为研究对象，提出一种可极大降低启动冲击电流的软启动方法，结合Buck模式与移相控制进行启动。此外，对输出电压调节器进行设计，并在其中加入负载电流前馈，在瞬态过程中采用改进型瞬时电流控制，使移相角之间能平滑切换。仿真结果表明，该方法在黑启动过程中可极大地减小冲击电流，且具有更好的动态性能。

Abstract

As the key component of the DC microgrids， the performance of high-power bidirectional isolated DC-DC converters has a significant impact on the microgrid operation. When the microgrid starts and recovers after fault occurrence， the isolated DC-DC converter often generates a huge inrush current， which brings a great challenge to the system reliability. To address this issue， this paper presents a soft start method for a three-phase dual active bridge converter by combining the Buck mode with phase-shift control， which can greatly reduce the start-up inrush current. Besides， the output voltage regulator is also designed with the load current feedforward function， and the improved instantaneous current control is employed in the transient state， so that the phase shift angle will change smoothly. The simulation results finally confirm that this method can greatly reduce the inrush current and improve the dynamic performance in the black startup.

导出引用

车凯, 伏祥运. 基于Buck和移相控制的三相双有源桥变换器黑启动策略[J]. 分布式能源. 2025, 10(1): 72-80 https://doi.org/10.16513/j.2096-2185.DE.(2025)010-01-0072-09

Kai CHE, Xiangyun FU. Black-Start Strategy for Three-Phase Dual Active Bridge Converter Based on Buck and Phase-Shift Control[J]. Distributed Energy Resources. 2025, 10(1): 72-80 https://doi.org/10.16513/j.2096-2185.DE.(2025)010-01-0072-09

中图分类号： TK01；TM76

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