Abstract Link operational test is an important test that must be done before the static synchronous compensator puts into practice. The purpose of the test is to validate the link’s ability of withstanding the joint strength of voltage and current not only in the repeated normal and abnormal cases but transient fault cases. This paper analyzes the principle of the link operational test and the processes of the working stage; then puts forward a method on how to calculate the value of the link inductance according to the series resonance theory; and designs a set of completed and reasonable test strategy on the basis of island operation power system and feed-forward decoupling control theory. Test results of PSCAD|EMTDC simulation provide that the parameter designing is valid and the test strategy is rational.
Shao Yanqiu,Shao Yixiang,Wang Xiaohong等. The Study on the Link Operational Test of Cascade Static Synchronous Compensator[J]. Electrical Engineering, 2015, 16(9): 20-24.
[1] 王轩, 林嘉扬, 滕乐天, 等. d-q-0坐标系下链式STATCOM电流控制策略[J]. 中国电机工程学报, 2012, 32(15): 48-54. [2] 周圆. 链式STATCOM直流侧电压控制方法的研究[D]. 北京: 北京交通大学, 2012. [3] Hason D J, Horwill C, Gemmell B D, et al. A STATCOM-based relocatable SVC project in the UK for national grid[C]. IEEE Power Engineering Society Winter Meeting. New York, USA: 2002. [4] 徐东飞. 大容量STATCOM链节及其等价试验的研究[D]. 北京: 清华大学, 2005. [5] 刘文华, 宋强, 张东江, 等. 50MVA静止同步补偿器链节的等价试验[J]. 中国电机工程学报, 2006, 20(12): 73-78. [6] 李海鹏. 新型静止无功发生器控制器的研究[D]. 青岛: 中国海洋大学, 2005. [7] 杨晓楠. 链式静止同步补偿器IGCT阀试验方法的研究[D]. 北京: 中国电力科学研究院, 2005. [8] 王志冰, 于坤山, 周孝信. H桥级联多电平变流器的直流母线电压平衡控制策略[J]. 中国电机工程学报, 2012, 32(6): 56-63. [9] 崔影. 基于级联H桥的中压SVG控制策略研究[D]. 哈尔滨: 哈尔滨工业大学, 2012. [10] Ghartemani M K, Iravani M R, Katiraei F. Extraction of signals for harmonic, reactive current and network- unbalance compensation[J]. Proceeding of the CSEE, 2005, 32(6): 137-142. [11] Akagi H. classification terminology and application of the modular multilevel cascade converter (MMCC) [C]. The 2010 International Power Electronics Conference. Beijing: 2010. [12] Peng F Z, Wang J. A Universal STATCOM with delta-connected cascade multilevel inverter[C]//PESC 04: 2004 IEEE 35TH ANNUAL POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-6, CONFERENCE PROCEEDINGS, 2004: 3529-3533.
2015, Vol. 16 
