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

Longji Zhu, Yan Zheng

Anhui University of Science and Technology, Huainan, Anhui, China.

DOI: 10.4236/epe.2013.54B237                

Abstract

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.

Keywords

Solid-state Breaker; IGCT; Over-voltage Suppression; Current Release Circuit

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Y. X. Lu, Z. Q. Zhang, K. Yuan Kuo, “Development of Intelligent Solid-state Breaker,” Electric Power Automation Equipment, Vol. 28, No.9, 2008, pp.112-114.
[2]	Y. Feng, Z. W. Guo, “Application of Solid State Circuit Breaker Technology,” Electric Power Automation Equipment, Vol. 27, No.10, 2007, pp. 96-99.
[3]	M. R. Zhang, X. Jin, J. H. Liu, “Over-voltage Suppression of Solid-state Circuit Breaker,” Electric Power Automation Equipment, Vol. 32, No. 3, 2012, pp.37-41.
[4]	L. Yan, D. F. Yi, Q. Hong，et al., “Medium Voltage Power Grid of Over-voltage Protection Technology and Research,” Equipment Manufacturing Technology, 2010 , pp. 135-136
[5]	R. Kapoor, A. Shukla, G. Demetriades, “State of Art of Power Electronics in Circuit Breaker Technology,” Conversion Congress and Exposition (ECCE), IEEE, 2012, pp.615-622
[6]	J. G. Mu, L. Wang, J. Hu, “Research on Main Circuit Topology for A Novel DC Solid-state Circuit Breaker,” Industrial Electronics and Applications (ICIEA), 2010, pp.926 - 930
[7]	J. G. Mu, L. Wang, J. Hu, “Analysis and Design of Topological Structure for DC Solid-state Circuit Breake,” World Non-Grid-Connected Wind Power and Energy Conference, Nanjing, China: IEEE, 2009, pp. 1-5