A Neodymium permanent magnet fault current limiter for use in the FREEDM project

A novel Neodymium (NdFeB) based fault current limiter for the National Science Foundation's FREEDM Project is presented in the paper. The proposed device incorporates a fast mechanical contact switch in parallel with the NdFeB core. The proposed fault current limiter exploits the nonlinear characteristics of the ferromagnetic core. The hysteretic properties of the ferromagnetic core are modeled by the Preisach method of Hysteresis. Finite Element Analysis is performed on the coils of the proposed device and the results are displayed. A low voltage simulation is done to determine the feasibility of the proposed device and to determine the correct operation. The simulations show the NdFeB fault current limiter can limit the potential fault current by the required 50%. Also, harmonic analysis is performed and is determined the NdFeB fault current limiter does not inject any additional harmonics into the FREEDM system.

[1]  Homa Arab,et al.  Implementation of Preisach-type model for studying of B-H curve influence on the behavior of flux-coupling type SFCL , 2009, 2009 IEEE Electrical Power & Energy Conference (EPEC).

[2]  Young Jae Kim,et al.  Design and Tests of Prototype Hybrid Superconducting Fault Current Limiter With Fast Switch , 2012, IEEE Transactions on Applied Superconductivity.

[3]  G. Karady,et al.  An ETO-based AC buck-type fault current limiter for use in the FREEDM project , 2012, 2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[4]  A. C. Delaiba,et al.  Investigation of Transformer Electromagnetic Forces Caused by External Faults Using FEM , 2006, 2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America.

[5]  J. A. Ferreira,et al.  New saturable-core Fault Current Limiter topology with reduced core size , 2009, 2009 IEEE 6th International Power Electronics and Motion Control Conference.

[6]  F. Moriconi,et al.  Development and Deployment of Saturated-Core Fault Current Limiters in Distribution and Transmission Substations , 2011, IEEE Transactions on Applied Superconductivity.

[7]  A Q Huang,et al.  The Future Renewable Electric Energy Delivery and Management (FREEDM) System: The Energy Internet , 2011, Proceedings of the IEEE.

[8]  Subhashish Bhattacharya,et al.  Solid-state fault isolation devices: application to future power electronics-based distribution systems , 2011 .

[9]  M. Steurer,et al.  Progress on the R&D of fault current limiters for utility applications , 2008, 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century.

[10]  Jianguo Zhu,et al.  Magnetic hysteresis modeling and simulation using the Preisach theory and TLM technique , 1994, Proceedings of 1994 Power Electronics Specialist Conference - PESC'94.

[11]  M. Steurer,et al.  Design of a solid state fault isolation device for implementation in power electronics based distribution systems , 2009, 41st North American Power Symposium.