The Study on New Solid-State Breaker and Its Over-voltage Suppression Technique


A design scheme of the intelligent SSB (Solid State Breaker) based on the IGCT (Integrated Gate Commutated Thyris- tor) is presented. The topology of switch module and the structure of the SSB are proposed. Firstly, to the IGCT’s over-voltage sensitivity problem, a new technique of reducing the over-voltage is introduced, which releases the elect romantics energy of faulty line by a capacitive current branch to reduce the amplitude of over-voltage. Secondly, the principle of over-voltage suppression with current release branch is analyzed, and the overall control scheme of solid- state breaker is put forward. Finally, the simulation results also demonstrate its obvious effectiveness in over-voltage suppression after adding a current release branch into the SSB.

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L. Zhu and Y. Zheng, "The Study on New Solid-State Breaker and Its Over-voltage Suppression Technique," Energy and Power Engineering, Vol. 5 No. 4B, 2013, pp. 1249-1252. doi: 10.4236/epe.2013.54B237.

Conflicts of Interest

The authors declare no conflicts of interest.


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