本研究設計一住宅配電線路過載保護安全策略，在所有用電領域中，住宅用電占比相當高，住宅用電安全問題成為一項重要議題，多數既有的住宅配電系統，處於高負載狀態，長時間在高負載狀態使用將導致用電安全的疑慮，因此建築物內的配電系統，需具備一套多重保護協調機制。故本研究設計一策略並製作原型智慧模組，基於電力線通訊技術(Power line Communication)四相相位偏移調變(QPSK)，利用相位差異來產生的調變方式。智慧模組能夠在複雜的住宅配電系統中，尋找其電力線關聯性，並建立住宅通訊節點，其智慧模組包含電能量測的設計。依據實驗結果顯示，該智慧模組所組成的系統在複雜的電力環境中，能找出對應智慧模組，在可接受範圍內穩定傳送訊號，智慧模組平均量測誤差1% 以下，最大誤差1.18%，因此驗證本研究提出之住宅配電線路過載保護安全策略研究的可行性，解決傳統智慧插座無法保護住宅整體配電線路過載的問題，往後研究能整合至家庭能源管理系統中(Home Energy Management System)，進行後續的增強。

The thesis designs a safety strategy for the overload protection of residential distribution lines in Taiwan. Due to the rapid development of technology and the increase in global energy demand, residential electricity accounts for a relatively high proportion of all electricity consumption. Consequently, residential electricity safety has become an important issue. Most of the existing residential power distribution systems in Taiwan are in a heavy-load state, which would cause electricity safety risks in the long run. Therefore, power distribution systems in all buildings require a set of multiple protection coordination mechanisms. This study designs a safety strategy and prototypes smart modules based on power line communication technology. They use quadrature phase shift keying (QPSK) to transmit data, sending signals with phase differences. The results show that the smart modules are able to find the power line correlation in the complex residential power distribution system and to establish residential communication nodes. In addition, the smart modules include the design of electrical energy measurement. According to the experimental results, they show that the system can transmit data stably in a complex power environment. The average measurement error of the smart module is less than 1%, and the maximum error is 1.18%. Therefore, the feasibility of the safety strategy of the overload protection for residential distribution lines proposed in this study is verified. Future studies can integrate this safety strategy into the home energy management system (HEMS) for further enhancement.

[1] Electricity Consumption, World 1990-2018 [Online] Available: https://www.iea.org/data-and-statistics?country=WORLD&fuel=Energy%20consumption&indicator=TotElecCons
[2] R. Mertens, "Manual for Statistics on Energy Consumption in Households," Publications Office of the European Union, Luxembourg, 2013.
[3] H. Fan, I. MacGill, and A. Sproul, "Statistical Analysis of Drivers of Residential Peak Electricity Demand," Energy and Buildings, vol. 141, pp. 205-217, 2017.
[4] S. P. Borg and N. Kelly, "The Effect of Appliance Energy Efficiency Improvements on Domestic Electric Loads in European Households," Energy and Buildings, vol. 43, no. 9, pp. 2240-2250, 2011.
[5] G. Bazydło and S. Wermiński, "Demand Side Management through Home Area Network Systems," International Journal of Electrical Power & Energy Systems, vol. 97, pp. 174-185, 2018.
[6] D. Gao and Q. Liu, "Review of the Research on the Identification of Electrical Fire Trace Evidence," Procedia Engineering (ELSEVIER), vol. 135, pp. 29-32, 2016.
[7] M. Rastegar, M. Fotuhi-Firuzabad, and H. Zareipour, "Home Energy Management Incorporating Operational Priority of Appliances," International Journal of Electrical Power & Energy Systems, vol. 74, pp. 286-292, 2016.
[8] M. S. Ahmed, A. Mohamed, R. Z. Homod, H. Shareef, A. H. Sabry, and K. B. Khalid, "Smart Plug Prototype for Monitoring Electrical Appliances in Home Energy Management System," in 2015 IEEE Student Conference on Research and Development (SCOReD), 2015: IEEE, pp. 32-36. 2015.
[9] L. Wang, D. Peng, and T. Zhang, "Design of Smart Home System Based on Wifi Smart Plug," Int. J. Smart Home, vol. 9, no. 6, pp. 173-182, 2015.
[10] Y. Thongkhao and W. Pora, "A Low-Cost Wi-Fi Smart Plug with on-Off and Energy Metering Functions," in 2016 13th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2016: IEEE, pp. 1-5. 2016.
[11] I. B. Dhaou, "Smart Plug Design for Demand Side Management Program," in 2019 4th International Conference on Power Electronics and their Applications (ICPEA), 2019: IEEE, pp. 1-5. 2019.
[12] G. Horvat, D. Vinko, and D. Žagar, "Household Power Outlet Overload Protection and Monitoring Using Cost Effective Embedded Solution," in 2013 2nd Mediterranean Conference on Embedded Computing (MECO), 2013: IEEE, pp. 242-246. 2013.
[13] P. Gupta and J. Chhabra, "Iot Based Smart Home Design Using Power and Security Management," in 2016 International Conference on Innovation and Challenges in Cyber Security (ICICCS-INBUSH), 2016: IEEE, pp. 6-10. 2016.
[14] A. Srinivasan, K. Baskaran, and G. Yann, "Iot Based Smart Plug-Load Energy Conservation and Management System," in 2019 IEEE 2nd International Conference on Power and Energy Applications (ICPEA), 2019: IEEE, pp. 155-158. 2019.
[15] A. S. Musleh, M. Debouza, and M. Farook, "Design and Implementation of Smart Plug: An Internet of Things (Iot) Approach," in 2017 International Conference on Electrical and Computing Technologies and Applications (ICECTA), 2017: IEEE, pp. 1-4. 2017.
[16] L. Gomes, F. Sousa, and Z. Vale, "An Intelligent Smart Plug with Shared Knowledge Capabilities," Sensors, vol. 18, no. 11, p. 3961, 2018.
[17] A. A. Zhilenkov, D. D. Gilyazov, I. I. Matveev, and Y. V. Krishtal, "Power Line Communication in Iot-Systems," in 2017 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus), 2017: IEEE, pp. 242-245. 2017.
[18] J. Liu, B. Zhao, J. Wang, Y. Zhu, and J. Hu, "Application of Power Line Communication in Smart Power Consumption," in ISPLC2010, 2010: IEEE, pp. 303-307. 2010.
[19] "Rules for the Installation of Consumer Electrical Equipment." 2020. [Online]. Available: https://law.moj.gov.tw/LawClass/LawAll.aspx?pcode=J0030018.
[20] M. Schwartz, "Carrier-Wave Telephony over Power Lines: Early History [History of Communications]," IEEE Communications Magazine, vol. 47, no. 1, pp. 14-18, 2009.
[21] M. Steer. "Phase Shift Keying Modulation." 2020. [Online]. Available: https://eng.libretexts.org/Bookshelves/Electrical_Engineering/Electronics/Microwave_and_RF_Design_I_-_Radio_Systems_(Steer)/02%3A_Modulation/2.13%3A_Phase_Shift_Keying_Modulation.
[22] H. Bluhm, Pulsed Power Systems. Springer, 2006.
[23] M. H. Samimi, A. Mahari, M. A. Farahnakian, and H. Mohseni, "A Review on the Rogowski Coil Principles and Applications," measurements, vol. 4, p. 5, 2013.
[24] "Acs 712 Data-Sheet." Allegro, 2020.