Abstract：Flywheel energy storage system (FESS) is very important in the future for its high efficiency, energy saving and clean. Although there are some products in the market currently, the high-power FESS is still under investigation. A bidirectional DC-DC circuit applied in the high-power FESS was proposed in this paper, which used quasi-resonant zero voltage switching (QRZVS) technique and achieved the two-way flow of energy. The QRZVS had characteristics such as simplified structure and low switching loss, realized the ability of quick charge & discharge and reduced the electromagnetic interference (EMI) level of the system.
[1] Patel, Jigar, et al. Bi-directional DC-DC converter for battery charging—Discharging applications using buck-boost switch[C]//Electrical, Electronics and Computer Science (SCEECS), 2012 IEEE Students' Conference on. IEEE, 2012. [2] Chen G, Lee Y S, Xu D, et al. A novel soft-switching and low-conduction-loss bidirectional DC-DC conver- ter[C]//Power Electronics and Motion Control Con- ference, 2000. IEEE, 2000. [3] Smith K M, Smedley K M. Engineering design of lossless passive soft switching methods for PWM converters-Part I: With minimum voltage stress circuit cells[J]. IEEE Transactions on Power Electronics, 2001, 16(3): 336-344. [4] Smith K M, Smedley K M. Engineering design of lossless passive soft switching methods for PWM converters-Part II. With non-minimum voltage stress circuit cells[J]. IEEE Transactions on Power Elec- tronics, 2002, 17(6): 864-873. [5] 牛全民, 张波, 罗萍, 等. Boost变换器断续导通模式的PSM同步开关映射模型[J]. 中国电机工程学报, 2006, 26(12): 62-66. [6] Tse K K CH, Huo S Y EA. Analysis and spectral characteristics of a spread-spectrum technique for conducted EMI suppression[J]. IEEE Transactions on Power Electronics, 2000, 15(2): 399-410. [7] Gonzalez D B J, Santolaria A EA. Conducted EMI reduction in power converters by means of periodic switching frequency modulation[J]. IEEE Transactions on Power Electronics, 2007, 22(6): 2271-2281. [8] Mutoh N N J, Kanesaki M. Multilayer power printed structures suitable for controlling EMI noises gener- ated in power converters[J]. IEEE Transactions on Industrial Electronics, 2003, 50(6): 1085-1094. [9] Patel H S, Hoft R G. Generalized techniques of harmonic elimination and voltage control in thyristor inverters: part II-voltage control techniques[J]. IEEE Transactions on Industry Applications, 1974(5): 666- 673. [10] Tesche F M, Karlsson T. EMC analysis methods and computational models[Z]. 1997.
2016, Vol. 17 
