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用于海底配电网优先负载的双向LCL-T谐振DC-DC变换器

Bidirectional LCL-T Resonant DC–DC Converter for Priority Loads in Undersea Distribution Networks

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中文摘要

本文针对海底长距离直流配电网,提出了一种用于串联直流供电系统的双向LCL-T谐振DC-DC变换器。该变换器在维持恒流输入的同时,能够实现负载侧的电压或电流调节,并在电缆故障等极端工况下保障关键负载的供电可靠性。

English Abstract

In undersea long-distance dc power distribution networks, power converters are distributed over the length of the trunk cable carrying constant dc current. Under regular circumstances, these series-connected isolated dc–dc converters deliver power from the constant current feed to their respective loads while regulating their output voltage or current. However, in the event of a cable or other fau...
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SunView 深度解读

该研究提出的双向LCL-T谐振拓扑在宽电压增益范围和软开关特性上具有优势,对阳光电源的储能系统(如PowerTitan、PowerStack系列)及PCS技术具有参考价值。虽然海底配电网属于特定应用场景,但其高可靠性、双向功率流控制及在复杂电网环境下的稳压策略,可为阳光电源在微电网、离网储能及极端环境下的定制化储能解决方案提供拓扑优化思路,特别是针对高压直流母线接入的抗扰动设计具有借鉴意义。