Invention Grant
- Patent Title: Direct current hybrid circuit breaker with reverse biased voltage source
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Application No.: US17393882Application Date: 2021-08-04
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Publication No.: US11646575B2Publication Date: 2023-05-09
- Inventor: Yuan Li , Fang Peng , Qichen Yang , Sanghun Kim , Michael Steurer
- Applicant: The Florida State University Research Foundation, Inc.
- Applicant Address: US FL Tallahassee
- Assignee: The Florida State University Research Foundation, Inc.
- Current Assignee: The Florida State University Research Foundation, Inc.
- Current Assignee Address: US FL Tallahassee
- Agency: Meunier Carlin & Curfman LLC
- Main IPC: H02H9/04
- IPC: H02H9/04 ; H02H1/00 ; H01H89/00

Abstract:
Within a direct current hybrid circuit breaker (DC HCB), a capacitance is provided in a semiconductor switch path in series with a semiconductor switch and the semiconductor switch is in parallel with a surge arrestor to facilitate opening the DC HCB. The semiconductor switch path is connected in parallel with a mechanical switch path that includes a mechanical switch. The circuit causes the current through the mechanical switch to ramp down while the current through the semiconductor switch ramps up to a supply current. The mechanical switch can open without current and against no recovery voltage.
Public/Granted literature
- US20210367422A1 DIRECT CURRENT HYBRID CIRCUIT BREAKER WITH REVERSE BIASED VOLTAGE SOURCE Public/Granted day:2021-11-25
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