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一种具有自适应故障限流能力的改进型混合直流断路器

An Improved Hybrid DC Circuit Breaker With Self-Adaptive Fault Current Limiting Capability

语言:

中文摘要

针对直流配电系统中故障电流限制的挑战,传统直流电抗器方案会影响系统正常运行及断路器快速隔离。本文提出一种具备自适应故障限流能力的改进型混合直流断路器,旨在平衡故障限流效果与系统动态响应性能,实现直流侧故障的高效隔离。

English Abstract

The effective fault current limiting is very significant for the dc distribution system. However, the traditional dc fault current limiting method, i.e., directly installing dc reactor, may trigger negative impacts the system normal operation and fast isolation of the circuit breaker. Therefore, an improved hybrid dc circuit breaker with self-adaptive fault current limiting capability is proposed ...
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SunView 深度解读

该技术对阳光电源的储能系统(如PowerTitan、PowerStack)及直流微网解决方案具有重要意义。随着储能系统向高压直流侧并网发展,直流侧故障保护是提升系统安全性的核心。该自适应限流技术可优化PCS直流侧的保护策略,在保障PowerTitan等大型储能系统在极端故障下快速切断的同时,减少对直流电抗器的依赖,从而降低系统损耗并提升功率密度。建议研发团队关注该拓扑在直流侧短路保护中的应用,以增强产品在复杂直流电网环境下的可靠性。