Abstract：SST is the fundamental component of the innovative smart micro-grid future renewable electric energy delivery and managementl(FREEDM) proposed by NC State University. In this paper, the operating mode, system function and topology of SST are analyzed from the FREEDM's overall system objectives. A three phase SST model based on Chinese power system parameters is built. The control strategies of input AC-DC rectifier, DC-DC converter and output DC-AC inverter are illustrated respectively, and SVPWM control technique is adopted to strengthen SST's performance. Simulation results demonstrate that the SST can exchange energy with grid smoothly while operating under a unit power factor condition. The low voltage wave is a perfect sine curve. The SST has good stability when heavy disturbances occur. This paper will play a constructive role in promoting the FREEDM research in China.
基金资助:为了解决人类所面临的能源危机, 大规模利用分布式能源和可再生能源发电, 一种新的电网运行模式——微型电网近年来在国外发展十分迅速。未来可再生电能传输和管理(Future Renewable Electric Energy Delivery and Management, FREEDM)网络, 是由美国北卡州立大学提出的新型智能微型电网模型, 目前正在兴建1MW的试验性示范电网。它由美国国家科学基金会自2008年起开始资助, 此外, 还联合了其他若干著名大学和跨国企业共同研究。; 教育部留学回国人员科研启动基金(08002410012)和中央高校基本科研业务费专项资金(0800219169)资助项目。
张明锐, 刘金辉, 金鑫. 应用于智能微网的SVPWM固态变压器研究[J]. 电工技术学报, 2012, 27(1): 90-97.
Zhang Mingrui, Liu Jinhui, Jin Xin. Research on the SVPWM Solid State Transformer Applied in Smart Micro-Grid. Transactions of China Electrotechnical Society, 2012, 27(1): 90-97.
[1] Huang Alex Q. Renewable energy system research and education at the NSF FREEDM systems center[C]. 2009 IEEE Power and Energy Society General Meeting, Calgary, AB, Canada, 2009, 7: 1-6. [2] Ronan E R, Sudhoff S D, Glover S F, et al. Application of power electronics to the distribution transformer[C]. Proceedings of the 15th Annual IEEE Applied Power Electronics Conference and Exposition, New Orleans, LA, 2000, 2: 861-867. [3] Huang A Q, Baliga J. FREEDM system: role of power electronics and power semiconductors[C]. Proceedings of the 21st International Symposium on Power Semiconductor Devices & IC's, Barcelona, 2009, 6: 9-12. [4] Brooks J L. Solid state transformer concept development [M]. Naval Material Command, Civil Engineering Laboratory, Naval Construction Battalion Ctr., Port Hueneme, CA, 1980. [5] Jun Wang, Huang A, Woongje Sung, et al. Smart grid technologies[J]. IEEE Industrial Electronics Magazine, 2009, 3(2): 16-23. [6] 王丹, 毛承雄, 陆继明. 自平衡电子电力变压器[J]. 中国电机工程学报, 2007, 27 (6): 77-83. Wang Dan, Mao Chengxiong, Lu Jiming. Auto- balancing electronic power transformer[J]. Proceedings of the CSEE, 2007, 27(6): 77-83. [7] 曹解围, 毛承雄, 陆继明, 等. 电力电子变压器在改善电力系统动态特性中的应用[J]. 电力自动化设备, 2005, 25(4): 65-68. Cao Jiewei, Mao Chengxiong, Lu Jiming, et al. Improving power system dynamic characteristics with power electronic transformer[J]. Electric Power Automation Equipment, 2005, 25(4): 65-68. [8] Ronan E R, Sudhoff S D, Glover S F, et al. A power electronic-based distribution transformer[J]. IEEE Transactions on Power Delivery, 2002, 17 (2): 537-543. [9] Miranda U A, Aredes M, Rolim L G B. A DQ synchronous reference frame current control for single-phase converters[C]. IEEE 36th Power Electronics Specialists Conference, 2005, 6: 1377-1381. [10] 郑强. 电力电子变压器的新型拓扑结构和智能控制研究[D]. 武汉: 武汉理工大学, 2007. [11] 马耀辉, 尹华杰, 汪万维. 三相电压型PWM整流器空间电压矢量控制仿真[J]. 防爆电机, 2009, 44(2): 15-18. Ma Yaohui, Yin Huajie, Wang Wanwei. The simulation of three phase voltage PWM rectifier adopting SVPWM control strategy[J]. Explosion Proof Motor, 2009, 44(2): 15-18. [12] 王宇, 熊光煜, 王淑红. 三相PWM整流/逆变器的建模与仿真[J]. 电气技术, 2010(1): 33-36. Wang Yu, Xiong Guangyu, Wang Shuhong. The modeling and simulation of three phase PWM rectifier and inverter[J]. Electrical Technology, 2010(1): 33-36. [13] 张崇巍, 张兴. PWM整流器及其控制[M]. 北京: 机械工业出版社, 2002. [14] Tiefu Zhao, Jie Zeng, Bhattacharya S, et al. An average model of solid state transformer for dynamic system simulation[C]. IEEE Power & Energy Society General Meeting, Calgary, AB, 2009, 7: 1-8. [15] 徐德鸿. 电力电子系统建模及控制[M]. 北京: 机械工业出版社, 2006. [16] 刘金辉, 张明锐, 金鑫. 应用于新型微网FREEDM的固态变压器研究[J]. 电气自动化, 2010, 32(6): 48-53. Liu Jinhui, Zhang Mingrui, Jin Xin. Research on the solid state transformer applied in FREEDM microgrid[J]. Electrical Automation, 2010, 32(6): 48-53. [17] 刘金辉. FREEDM中的固态变压器及其对继电保护的影响[D]. 上海: 同济大学, 2011. [18] Woongje Sung, Jun Wang, Huang A Q, et al. Design and investigation of frequency capability of 15kV 4H-SiC IGBT[C]. Proceedings of the 21st International Symposium on Power Semiconductor Devices & IC's, Barcelona, 2009, 6: 271-274.
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