Title :
Identifying techniques, topologies and features for maximizing the efficiency of a distribution grid with solid state power devices
Author :
Stefanski, Karl ; Qin, Hengsi ; Chowdhury, Badrul H. ; Kimball, Jonathan W. ; Bhattacharya, Subhashish
Author_Institution :
Dept. of Electr. & Comput. Eng., Missouri Univ. of Sci. & Technol., Rolla, MO, USA
Abstract :
The FREEDM grid utilizes solid state transformers (SST) and solid state fault interruption devices (FID) which may lead to unfavorable operating losses as compared to a conventional grid. Various SST topologies and switching techniques are identified for minimizing losses and a performance evaluation is made to determine the efficiency of the FREEDM distribution network to improve the overall efficiency. Losses include conductors, SSTs, FIDs, and conventional distribution transformers tested under various loading levels. Compared to a conventional distribution network, the FREEDM grid has a slight reduction in losses. By choosing the proper distribution line configuration, conductor type, switching devices and switching techniques, the power losses on the system may be minimized further.
Keywords :
interrupters; power distribution faults; power grids; power transformers; FED; FREEDM distribution network; FREEDM grid; SST; SST topologies; distribution grid; distribution line configuration; distribution transformers; power losses; solid state fault interruption devices; solid state power devices; solid state transformers; switching devices; switching techniques; unfavorable operating losses; Conductors; Converters; Insulated gate bipolar transistors; Loading; Resistance; Solids; Topology; FREEDM; Solid state transformer; microgrid; renewable energy; solid state fault interruption device;
Conference_Titel :
North American Power Symposium (NAPS), 2010
Conference_Location :
Arlington, TX
Print_ISBN :
978-1-4244-8046-3
DOI :
10.1109/NAPS.2010.5618966
