TCSC減弱次同步諧振能力的仿真分析
朱瑋珂
（國網蘇州供電公司，江蘇 蘇州 215004）
摘 要：晶閘管控制串聯補償器(TCSC)作為柔性交流輸電設備，可以用來解決次同步諧振(SSR)問題。通過對TCSC電路模型的分析，得出其影響SSR問題的機理，并推導出其等效電路模型。分別設置TCSC和其等效電路運行在感性和容性的條件下，對TCSC電路模型及其等效模型在SSR現象中的效果進行仿真。結果表明，感性條件下TCSC和其等效電路可以對SSR現象起到阻尼作用，但是容性條件下則會增強SSR現象，且TCSC由于具有更好的動態特性，其阻尼作用要優于等效電路。
關鍵詞：晶閘管控制串聯補償器；次同步諧振；等效電路；仿真
中圖分類號：TM761 文獻標識碼：A 文章編號：1007-3175(2017)11-0025-05
Simulation Analysis of Thyristor Controlled Series Compensator Weakening Subsynchronous Resonance Capacity
ZHU Wei-ke
（State Grid Suzhou Power Supply Company, Suzhou 215004, China）
Abstract: Thyristor control series compensator (TCSC), as flexible alternation current (AC) transmission equipment, can be used to solve the problem of sub-synchronous resonance (SSR). Via the analysis of TCSC circuit model, the mechanism of SSR problem was obtained and its equivalent circuit model was deduced. In addition, TCSC and its equivalent circuit were set up under the conditions of inductive and capacitive conditions, and the effect of TCSC circuit model and its equivalent model in SSR phenomenon was simulated. The results show that the TCSC and its equivalent circuit can damp the SSR phenomenon under the perceptual condition, but it will enhance the SSR phenomenon under the capacitive condition. The TCSC perform better in SSR than characteristics circuit due to its dynamic characteristics.
Key words: thyristor controlled series compensator; sub-synchronous resonance; equivalent circuit; simulation
參考文獻
[1] 石新春，王毅，孫麗玲. 電力電子技術[M]. 北京：中國電力出版社，2006.
[2] 孔永科. 可控串聯補償(TCSC)對輸電線路繼電保護的影響[D]. 保定：華北電力大學，2005.
[3] 楊飛.TCSC特性及其控制策略的研究[D]. 哈爾濱：哈爾濱工業大學，2008.
[4] CHRISTI N, HEDIN R, JOHNSON R, e t a l. Power system studies and modelling for the Kayenta 230 kV substation advanced series compensation[C]//AC and DC Power Transmission International Conference on IET, 1991：33-37.
[5] HOLMBERG D，DANIELSSON M，HALVARSSON P，et al.The Stodethyristor Controlled Series Capacitor[C]//International Council on Large Electric Systems，Paris，1996.
[6] TRUDNOWSKI D J, DONNELLY M K, HAUER J F. Estimating damping effectiveness of BPA's thyristor controlled series capacitor by applying time and frequency domain methods to measured response[J].IEEE Transactions on Power Systems，1996，11(2)：761-766.
[7] 王宇紅，徐桂芝，行舟，等. 我國第一套國產化可控串補裝置的阻抗控制[J]. 電力設備，2005，6(11)：38-40．
[8] LIANG J, GUO J, ZHOU X.Theory analysis and engineering study of Yimin-Fengtun 500 kV TCSC transmission system[C]//Power System Technology, 1998 Proceedings.POWERCON International Conference on IEEE，1998，1：377-381.
[9] 藍元良，湯廣福，武守元，等.220 kV成碧線可控串補可控硅閥電氣設計及仿真[J]. 電網技術，2006，30(4)：11-15．
