台澎互連系統全黑啟動的動態模擬分析

當系統發生全停電事故時，如何從全黑中迅速恢復供電，一直為電力系統運轉重要課題。電力系統全黑啟動為一複雜程序，包含啟動全黑機組、決定全黑啟動路徑、發電廠與電網的電源調度及開關操作、負載及發電機的供需平衡等等。為滿足澎湖離島地區用電需求，台電公司擬將澎湖離島電網系統與台灣本島大電網系統連成同一電力系統，台灣兩條55公里長之台澎161kV海底電纜將於西元2016年投入運轉；台澎海纜投入運轉時產生之各種暫態現象可能導致系統不穩定。如果台澎系統發生全停電事故，台電現行加壓路徑並不適用，復電加壓路徑必須重新規劃。本論文針對台澎系統之全黑啟動進行分析，並規劃出可行的加壓路徑。 PSS/E是廣泛使用於電力系統分析的模擬軟體，本論文採用PSS/E來模擬未來2015年台澎系統全黑啟動加壓路徑，並在加壓過程中電壓過高時，適時投入電抗器，以降低系統過電壓，並於系統中裝置STATCOM以穩定電壓。模擬結果可作為未來台澎系統連結後，台電規劃全黑啟動路徑的參考。

關鍵字

加壓路徑；台澎海纜；全黑啟動

並列摘要

If a blackout occurs in the power system, how to restore the grid as soon as possible during the blackout is always a significant issue for the operation of power system. The black start of a power system is a complex process, including activation of the generating units with black start capability, determination of the energizing paths of the transmission lines, dispatch and operation on plants and power grids, the work of switching breakers, balance between loads and generators and so on. In order to satisfy the power demand of the Penghu island, the Taiwan power Company (TPC) is planning to connect the Taiwan Grid with the Penghu island grid, the two-circuit 55-km 161-kV submarine cables between Taiwan and Penghu (T-P-cables) will be operated commercially by 2016. The transient behavior of the operation of T-P-Cable may cause the system instability, even cause the system to breakdown. If a blackout occurs in Taiwan-Penghu System, the present energizing paths proposed by TPC would not be applicable; therefore, the energizing paths must be reviewed. This thesis discusses the black start issue about Taiwan-Penghu System, and plans feasible energizing paths. A well known power system analysis tool, PSS/E, is commonly used to study the power system analysis. This thesis uses PSS/E to simulate the black start energizing process for 2015 Taiwan-Penghu System. In the simulation, suitable reactors are timely installed to reduce the system overvoltage when energizing the transmission grid; additionally, STATCOM is also utilized to stabilize the voltage. The simulation results can provide revised black start paths for TPC after connecting the Taiwan Grid with the Penghu island grid.

並列關鍵字

submarine cable ； T-P-Cable ； Black start ； energizing paths

參考文獻

[14] 周一婷，「台電系統全黑啟動加壓模式之研究」，碩士論文，台灣大學電機工程學研究所，台北，2008。

[2] IEEE Task Force Report, “Blackout Experiences and Lessons, Best Practices for System Dynamic Performance, and the Role of New Technologies”, Final report, July, 2007.

[4] P. H. Ho and C. J. Wu, “Transient Analysis of the 161-kV Taiwan- PengHu Submarine Power Cable System,” 2008.

[5] M. Aktarujjaman, M. A. Kashem, M. Negnevitsky, and G. Ledwich , “Black Start with DFIG Based Distributed Generation after Major Emergencies,” 2006.

[9] J. W. Li, J. H. Su, X. Z. Yang, and T. Zhao, ”Study on Microgrid Operation Control and Black Start,” 2011.

國際替代計量

台澎互連系統全黑啟動的動態模擬分析

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