US 12,149,068 B2
Phase-controlled IGBT bridge type, GTO bridge type, and hybrid IGBT/semi-passive, GTO/semi-passive types fault current limiters (FCLs)
Dmitry Baimel, Beer Sheva (IL); and Alon Kuperman, Beer Sheva (IL)
Assigned to B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY, Beer Sheva (IL); and SAMI SHAMOON COLLEGE OF ENGINEERING (R.A.), Beer Sheva (IL)
Filed by B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY, Beer Sheva (IL); and SAMI SHAMOON COLLEGE OF ENGINEERING (R.A.), Beer Sheva (IL)
Filed on Dec. 2, 2022, as Appl. No. 18/074,084.
Application 18/074,084 is a continuation in part of application No. PCT/IL2021/050690, filed on Jun. 9, 2021.
Claims priority of provisional application 63/036,467, filed on Jun. 9, 2020.
Prior Publication US 2023/0104736 A1, Apr. 6, 2023
Int. Cl. H02H 9/02 (2006.01)
CPC H02H 9/02 (2013.01) 9 Claims
OG exemplary drawing
 
1. An IGBT and GTO bridge type Fault Current Limiters (FCLs) located between a power source and a load, comprising:
a) a power circuit, constructed from topology of two bi-directional S1, S4 and two unidirectional fully controlled switches S2, S3, connected in a bridge form and a non-superconducting reactor being installed inside said bridge and having internal resistance RDC in series with damping resistor RD and in parallel to a bridge installed shunt capacitor Csh and shunt resistor Rsh; and
b) a controller with phase control circuit for limiting fault current to a desired value by:
b1) calculating turn ON and OFF angles of the switches according to a measured current and voltage;
b2) converting the calculated turn ON and OFF angles to gating signals; and
b3) supplying the gating signals to the switches.