隨著工、商業日益增加的敏感性負載，使得用戶對電力品質愈來愈重視。大多數電力品質的問題肇因於電壓遽降，造成生產線的中斷與鉅額的損失。現今有許多電力品質改善設備可以提供不同等級的保護，以適合個別用戶的特殊需求。本論文提出一個在不同配電饋線類別與單一類型用戶之不同地點上，裝置改善電壓遽降設備之成本效益評估，模擬結果顯示，在所使用的假設電力品質損失資料下，於測試的全部方案中，裝設小容量、低成本的不斷電系統有最佳的效益/成本比。

With the increase of sensitive loads in industrial and commercial customers, more attention has been paid to the power quality problems. Voltage sag is among the major power quality problems that cause interruptions in production lines that result in significant losses. Power quality mitigation devices, that provide different protection levels, can be adopted to match individual customer’s special needs. This thesis presents a cost-benefit assessment of various voltage sag mitigation options at locations with different types of distribution feeders and customers. Simulation results have revealed that using the assumed power quality cost data, the installation of small capacity and low cost UPS has the highest benefit/cost ratio in all the options tested.

中文摘要………………………………….…………………...………… I
英文摘要………………………………………………………………… II
目錄…………………………………………………………………….. III
圖目錄…..………………………………………….…………………… V
表目錄…………………………………………………………………. VII

第一章 緒 論……………………………………………….……….. 1
1.1 研究背景與動機……………………………….……………… 1
1.2 相關研究概況………………………………….……………… 1
1.3 論文綱要……………………………………….……………… 3
第二章電力品質與改善方案……..……………………………………5
2.1 電力品質簡介………………………………….……………… 5
2.2 不同角色對電力品質之認知………………………………. 11
2.3 電力品質改善設備..…………………………………………12
2.4 電力品質改善方案………………………………………….. 17
2.4.1中電壓用戶電力品質改善方案 ……………………17
2.4.2低電壓用戶電力品質改善方案 ……………………24
第三章 電力品質改善效益評估……………………………………. 28
3.1 成本效益分析方法………………………………………….. 28
2.5 電力品質改善設施的成本/效益分析……………………... 39
第四章 實例分析測試..…….……………………………………….. 46
4.1 配電饋線之投資效益評估…………………………………. 47
4.1.1範例1在商業饋線投資改善設備….………………. 48
4.1.2範例2在住宅饋線投資改善設備..…………………53
4.1.3範例3在工業饋線投資改善設備…………………..56
4.1.4範例4在混合型饋線投資改善設備….……………. 59
4.2個別用戶投資效益評估…………………………………….. 62
4.2.1範例5在住宅大樓投資改善設備………………….. 63
4.2.2範例6在商業大樓投資改善設備………………….. 64
4.3 敏感度分析………………………………………………….. 67
第五章 結論…………………………………………………………… 74
參考文獻…..……………………………………………………………76
附錄…………………………………………………………………….. 80

[1] R. C. Dugan, M. F. McGranaghan and H. W. Beaty, Electrical Power Systems Quality, McGraw-Hill, New York, 1996.
[2] E. M. Gulachenski, “The Low Cost Alternative to UPS,” Electro/95 International Professional Program Proc., 1995, pp.97-107.
[3] N, H. Woodley, L. Morgan and A. Sundaram, “Experience With An Inverter-Based Dynamic Voltage Restorer,” IEEE Trans. on Power Delivery, Vol. 14, No. 3, July 1999, pp.1181-1186.
[4] N, H. Woodley and K. S. Berton, “Field Experience With Large Dynamic Voltage Restorer Systems,” Electricity ’99 Conference & Exposition, Canadian Electricity Assa., Vancouver, BC, Canada, 1999.
[5] R. Schottler and R. G. Coney, “Commercial application experiences with SMES,” Power Engineering Journal, Vol. 13, No. 3, June 1999, pp. 149-152.
[6] C. J. Melhorn, A. Braz, P. Hofmann and R. J. Mauro, “An Evaluation of Energy Storage Techniques for Improving Ride-Through Capability for Sensitive Customers on Underground Networks,” IEEE Trans. on Industry Applications, Vol. 33, No. 4, July/August 1997, pp. 1083-1095.
[7] C. J. Melhorn, T. D. Davis and G. E. Beam, “Voltage Sags: Their Impact on the Utility and Industrial Customers,” IEEE Trans. on Industry Applications, Vol. 34, No. 3, May/June 1998, pp. 549-558.
[8] E. Alegria, A. Khan, J. Rajda and S. Dewan, “Static Voltage Regulator (SVR)–Ride Through Support for Semiconductor Facilities,” Proceedings of Powersystems World ’98 Power Quality Conference, Santa Clara, CA, Nov. 1998.
[9] Methods to Improve Power Quality: GE’s Static Series Voltage Regulator, http://www.ece.umr.edu/areas/power/Energy_Course/energy/Power_quality/methimpr.html
[10] Bechtel International, Inc., Final Report, Power Quality for Semiconductor Industry-Management and Improvement, Submitted to Taiwan Power Company, Dec. 1998.
[11] E. G. Neudorf, D.L. Kiguel, G. A. Hamoud, B. Porretta, W. M. Stephenson, R. W. Sparks, D. M. Logan, M. P. Bhavaraju, R. Billinton and D. L. Garrison, “Cost-benefit analysis of power system reliability: two utility case studies,” IEEE Trans. on Power Systems, Vol. 10, No. 3, Aug. 1995, pp. 1667–1675.
[12] G. Tollefson, R. Billinton, G. Wacker, E. Chan and J. Aweta, “A Canadian Customer Survey to Assess Power System Reliability Worth,” IEEE Trans. on Power Systems, Vol. 9, No. 1, Feb. 1994, pp. 443-450.
[13] W. Raithmayr, P. Daehler, M. Eichler, G. Lochner, E. John and K. Chan, “Customer Reliability Improvement with a DVR or a DUPS,” Proceedings of Powersystems World ’98 Power Quality Conference, Santa Clara, CA, Nov. 1998.
[14] IEEE Recommended Practice for Monitoring Electric Power Quality, IEEE Std. 1159-1995,2 Nov., 1995.
[15] IEEE Recommended Practice for Emergency and Standby Power Systems, IEEE Std. 446-1995.
[16] http://www.softswitch.com./semi_f-47.htm
[17] Electrotek Concepts, Inc., “An Assessment of Distribution System Power Quality, Vol. 2: Statistical Summary Report,” Final report TR-106294-V2, May 1996, prepared for Electric Power Research Institute.
[18] 陳建國、鄒應嶼，『UPS電路架構的發展』，電子月刊，第五卷第三期，pp48-59。
[19] http://www.softswitch.com./DySC.htm
[20] W. E. Brumsickle, R. S. Schneider, G. A. Luckjiff, D. M. Divan and M. F. McGranaghan, “Dynamic Sag Correctors: Cost Effective Industrial Power Line Conditioning,” Soft Switching Technologies.
[21] 楊明璧、邱垂昱譯，當代工程經濟學，智勝文化，民國八十六年。
[22] 熊啟中，『LED交通號誌可行性與推行方式之初步研究』，國立交通大學交通運輸研究所，碩士論文，中華民國八十九年。
[23] N. H. Woodley, “Field Experience With Dynamic Voltage Restorer (DVR) Systems,” Proceedings of IEEE Power Engineering Society Winter Meeting 2000, 4Singapore, pp.2864-2871.
[24] D. O. Koval and M. B. Hughes, “Canadian National Power Quality Survey: Frequency of Industrial and Commercial Voltage Sags,” IEEE Trans. on Industry Applications, Vol. 33, No. 3, May-June 1997, pp. 622-627.
[25] D. S. Dorr, “Point of Utilization Power Quality Study Results,” IEEE Trans. on Industry Applications, Vol. 31, No. 4, July-Aug. 1995, pp. 658-666.
[26] M. J. Sullivan, T. Vardell and M. Johnson, “Power Interruption Costs to Industrial and Commercial Consumers of Electricity,” IEEE Trans. on Industry Applications, Vol. 33, No. 6, Nov.-Dec. 1997, pp. 1448-1458.
[27] M. H. J. Bollen, T. Tayjasanant and G. Yalcinkaya, “Assessment of the Number of Voltage Sags Experienced by a Large Industrial Customer,” IEEE Trans. on Industry Applications, Vol. 33, No. 6, Nov.-Dec. 1997, pp. 1465-1471.
[28] C. K. Yang, F. T. Tsai and C. S. Kau, “The Distribution System of High-Tech Industrial in Hsinchu Science-based Industrial Park,” 1998 Proceedings of the 19th Symposium on Electrical Power Engineering, Taipei, Taiwan, Nov. 1998, pp. 49-52.
[29] M. J. Sullivan, T. Vardell, B. N. Suddeth and A. Vojdani, “Interruption Costs, Customer Satisfaction and Expectations for Service Reliability,” IEEE Trans. on Power Systems, Vol. 11, No. 2, May 1996, pp. 989-995.
[30] D.S. Dorr and M.B. Hughes, “Interpreting Recent Power Quality Surveys to Define the Electrical Environment,” IEEE Trans. on Industry Applications, Vol. 33, No. 6, Nov.-Dec. 1997, pp. 1480-1487.
[31] T. Baldwin, “Voltage Sag Analysis for Making Economic Decisions on Mitigation Solutions,” IEEE Power Engineering Society 1999 Summer Meeting, Vol. 1, 1999, pp. 482–483.
[32] Recommended Practice for Emergency and Standby Power Systems for Industrial and Commercial Applications, IEEE Std. 446-1987.
[33] IEEE Recommended Practice for the Design of Reliable Industrial and Commercial Power Systems, IEEE Std. 493-1990 (Gold Book).
[34] A. Sannino, M. G. Miller and M. H. J. Bollen, “Overview of Voltage Sag Mitigation,” IEEE Power Engineering Society Winter Meeting, 2000, Vol. 4, 2000, pp. 2872–2878.
[35] J. Lamoree, D. Mueller, P. Vinett, W. Jones and M. Samotyj, “Voltage Sag Analysis Case Studies,” IEEE Trans. on Industry Applications, Vol. 30, No. 4, July-Aug. 1994, pp. 1083-1089.