多旋翼無人機近年發展快速，不管是休閒娛樂、軍事用途、農業應用等，在許多領域上皆可發揮。然而多旋翼無人機本身僅透過馬達轉數進行控制，在馬達不停加減速下將會無形中降低電池的使用效率，對於以電池為主要動力的多旋翼無人機而言是一大瓶頸，目前如何提升續航力成為該領域長期探討的議題。混合動力系統有著高續航、節省燃料消耗等優勢，若將混和動力系統應用在多旋翼無人機上，有利於起飛重量及滯空時間等性能提升，增加使用效益，本文使用KingTech的K60-TP渦輪軸發動機作為動力核心，並配選永磁馬達作為發電機供電給多旋翼無人機，初步評估飛行的可行性，以及與純電池進行輸出比較，最終判斷微型渦輪發電系統是否適配於多旋翼無人機。
最終實驗測試結果，發現在渦輪核心轉速140,000 rpm下具有最佳的輸出效能，且證明了微型渦輪發電系統能夠使多旋翼無人機飛行，並可觀察到，在油門值52 %以上時，純電池輸出功率大於渦輪發電系統輸出功率，並且在油門值70 %時，渦輪發電系統輸出功率接近極限值，而在繫留機飛行實驗得知，在10 AWG線長度10 m並負載重量17 kg下，微型渦輪發電系統將可穩定操作六軸植保機。

In recent years, multi-rotor unmanned aerial vehicles (UAVs) have experienced rapid development and have found applications in various fields such as recreational, military, and agricultural purposes. However, one major limitation of battery-powered multi-rotor UAVs is their reliance on motor speed control, which can reduce battery efficiency due to constant motor acceleration and deceleration. Enhancing the endurance of battery-powered multi-rotor UAVs has become a long-standing topic of discussion in the field. Hybrid power systems, with their advantages of extended endurance and reduced fuel consumption, offer a potential solution. By applying hybrid power systems to multi-rotor UAVs, improvements can be made in takeoff weight and loitering time, resulting in increased operational efficiency. This paper focuses on evaluating the feasibility of using a hybrid power system in multi-rotor UAVs. The KingTech K60-TP turboshaft engine is selected as the power core, along with a permanent magnet motor as a generator to supply power to the UAV. The study conducts initial assessments of the system's flight feasibility and compares its performance with that of a pure battery system. The aim is to determine whether the micro-turbine power generation system is suitable for integration into multi-rotor UAVs.
The final experimental test results revealed that the micro gas turbine power generation system achieves optimal output performance at a turbine core speed of 140,000 rpm. It also demonstrated the capability of the micro gas turbine power generation system to enable flight for the multi-rotor unmanned aerial vehicle. Moreover, it was observed that at throttle values above 52%, the pure battery output power surpasses that of the gas turbine power generation system, and at 70% throttle, the gas turbine system reaches close to its maximum output. Additionally, during the tethered flight experiment with a 10-meter length of 10 AWG wire and a payload weight of 17 kg, the micro gas turbine power generation system demonstrated stable operation for the hexacopter agricultural UAV.

[1] 楊策、劉宏偉、李曉、買靖東，微型燃氣輪機技術，北京理工大學車輛與交通工程學院專題綜述，2003。
[2] Yimin Gao, Mehrdad Ehsani and John M. Miller, “Hybrid Electric Vehicle: Overview and State of the Art,” in Proceedings of the IEEE International Symposium on Industrial Electronics, Vol.1, pp.307-316, Dubrovnik, Croatia, 2005.
[3] 莊秉勳，微型渦輪發電系統之開發，國立清華大學動力機械工程學系碩士論文，2012。
[4] Kyuho Sim, Bonjin Koo, Chang Ho Kim, Tae Ho Kim, “Development and Performance Measurement of Micro-Power Pack Using Micro-Gas Turbine Driven Automotive Alternators,” Applied Energy, pp.309-319, 2013.
[5] K. J. Moody, Design, Analysis, and Integration of A Turboelectric Propulsion and Power System for Unmanned Aircraft, Oklahoma State University, 2018.
[6] 鍾昆翰，微型渦輪發電系統用於無人載具，國立成功大學航空太空工程研究所碩士論文，2021。
[7] 徐榆鈞，四行程內燃機用於混合動力系統之可行性研究， 國立成功大學航空太空工程研究所碩士論文，2021。
[8] M. J. Vick, High Efficiency Recuperated Ceramic Gas Turbine Engines for Small Unmanned Air Vehicle Propulsion, Department Of Mechanical Engineering, London, 2012.
[9] 田家榮，微型渦輪發電系統性能分析與實驗驗證之研究，國立成功大學航空太空工程學系碩士論文，2020。
[10] Zhengchao Wei, Yue Ma , Ningkang Yang , Shumin Ruan , Changle Xiang, “Reinforcement Learning Based Power Management Integrating Economic Rotational Speed of Turboshaft Engine and Safety Constraints of Battery for Hybrid Electric Power System,” Volume 263, Part B, 2023.
[11] P. P. Walsh and P. Fletcher, SAE APR 755A Engine Station Numbering, Blackwell Science Ltd a Blackwell Publishing Company, 2004.
[12] Olivier Cleynen, “Thermodynamique de l’ingénieur,” troisième edition, Creative Commons, 2014.
[13] 旺材電機與電控，永磁交流伺服電動機轉矩常數和反電勢常數的規範化應用分析，2018。
[14] 成功大學馬達科技中心，永久磁性直流馬達原理。https://reurl.cc/110e6X
[15] L. I. Jusoh, E. Sulaiman, F. S. Bahrim and R. Kumar, “Design Comparison of Inner and Outer Rotor of Permanent Magnet Flux Switching Machine for Electric Bicycle Application,” IOP Conference Series: Materials Science and Engineering, Vol.226. Iss.1. IOP Publishing, pp. 012129, 2017.
[16] Y. Roshni, Difference between Half Wave and Full Wave Rectifier, Basic Electronics, Electronics desk, 2019.
[17] Cyril W. Lander, Power Electronics, 3rd ed., London, McGraw-Hill, 1993.
[18] B. W, Williams, Power Electronics : Devices, Drivers and Applications, 2nd ed., Basingstoke, Macmillan, 1992.
[19] Engr Fahad, Filter Circuit and Need of Filters in Electronics, Basic Electronics, Electronic Clinic, Mar. 2022.
[20] Ye XIE, Al SAVVARISAL, Antonios TSOURDOS, Dan ZHANG, Jason GU,“Review of Hybrid Electric Powered Aircraft, Its Conceptual Design and Energy Management Methodologies,” Chinese Journal of Aeronautics, 2021.
[21] Wenping Zhanga, Yiming Wangb, Po Xub, Donghui Lia, Baosong Liu,“DC-bus Voltage Balancing Control for 3-level DC/DC Converters in Renewable Generation Systems,”The 3rd International Conference on Power and Electrical Engineering, Singapore, 2022.
[22] 張維庭，微型渦輪發電系統之動力流路設計及分析研究，國立成功大學航空太空工程學系碩士論文，2018。
[23] KingTech Turbines, Engine Manual, Series 2, 2016.
[24] HOBBYWING, XRotor Pro X6 User Manual, 2021.
[25] Anis Koubâa, Azza Allouch, Maram Alajlan, Yasir Javed, Abdelfettah Belghith and Mohamed Khalgui ,“Micro air vehicle link (MAVLink) in a nutshell: a survey,”IEEE Access, 7 (7) pp.87658~87680, 2019.
[26] 陳會安，Raspberry Pi 樹莓派：Python x AI 超應用聖經，旗標科技，2022。
[27] PZEM-003/017直流通訊模塊，用戶手冊。
[28] J. B. Heywood, Internal Combustion Engine Fundamentals, New York, McGraw-Hill, 1988.
[29] 台灣中油股份有限公司，煤油安全資料表。
https://reurl.cc/p6pLrl
[30] Valentyn Barannik, and Maksym Burlaka, and Leonid Moroz and Abdul Nassar, “Direct Off-Design Performance Prediction of Micro Gas Turbine Engine for Distributed Power Generation,”ASME 2017 Gas Turbine India Conference, 2017.