Scholarlink

<p>Main idea of this research is to introduce a novel technique and topology of fully passive surge absorption unidirectional solid state DC circuit breakers (SS-DCCBs) for low voltage application referred to as Passive Surge Absorption Technique (PSAT). In the proposed PSAT, the active components are minimized, with only the main switch in the primary current path being active. Additionally, the PSAT technique isolates the input and output inductive currents, allowing each side to absorb surges independently. A bridged buffer supercapacitor (SC), along with embedded electrolytic capacitors, absorbs the line side surge, while the load side transient situation is circulated in a discharge diode loop. The proposed SS-DCCB has been validated through MATLAB simulation and practical testing at <i>48VDC</i> with a fault detection threshold current of <i>13A</i>. This scaled-down surge absorption technique can be adapted for other applications and different voltage and current levels.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Unidirectional DC circuit breaker with fully passive surge absorber for low voltage DC microgrids

  • 期刊论文

  • 发表日期：

    2026年3月23日

查看全文
  • Mehdi Moradian,
  • Rasool Peykarporsan,
  • Tek Tjing Lie,
  • Kosala Gunawardane

摘要

Main idea of this research is to introduce a novel technique and topology of fully passive surge absorption unidirectional solid state DC circuit breakers (SS-DCCBs) for low voltage application referred to as Passive Surge Absorption Technique (PSAT). In the proposed PSAT, the active components are minimized, with only the main switch in the primary current path being active. Additionally, the PSAT technique isolates the input and output inductive currents, allowing each side to absorb surges independently. A bridged buffer supercapacitor (SC), along with embedded electrolytic capacitors, absorbs the line side surge, while the load side transient situation is circulated in a discharge diode loop. The proposed SS-DCCB has been validated through MATLAB simulation and practical testing at 48VDC with a fault detection threshold current of 13A. This scaled-down surge absorption technique can be adapted for other applications and different voltage and current levels.