本文旨在研製一台應用於電梯電力能量回收系統之雙向直流-直流轉換器，因電梯在由上往下運行時所產生的回升能量較多，因此需要透過雙向轉換器將回升能量回傳至儲能設備，並在電梯發生緊急情況導致電梯電力不足時，能夠有足夠的能量完成應急措施。根據電梯的操作模式不同，可藉由數位控制的形式實現電池充電與放電的策略。而本文所採用的架構為雙向三相交錯式降/升壓轉換器，能夠透過此轉換器進行電壓調變，此架構簡單，可靠度高，適合應用在大電流的場合，而並聯三組降/升壓轉換器用以降低單組負載，進而使導通損失降低，為了降低輸出電流漣波採用交錯式控制，使各相開關訊號之間相差120度。本文使用雙迴路控制方法，外環電壓迴路主要目的為控制輸出電壓，以達到定電壓輸出的效果，而內環電流迴路主要目的為控制各相電感電流，並使各相電感電流能夠達成均流之效果，並實現定電流輸出之策略，並利用MATLAB求出控制器參數並進行穩定度的分析，配合PSIM電路模擬軟體，將得到的控制器參數代入模擬電路中並驗證電路之動作。最後實作完成一台高壓側直流電壓290 V至380 V，低壓側直流電壓100 V至200 V，最大功率7 kW之雙向隔離型直流-直流轉換器。

The purpose of this thesis is to develop a Bi-directional DC-DC converter for use in an elevator power energy recovery system. Due to the surplus regenerative energy generated during the elevator's downward motion, it is necessary to utilize a bidirectional converter to transfer the regenerative energy back to the energy storage system. Moreover, in the event of an emergency leading to insufficient elevator power, there must be enough energy to execute emergency measures. Depending on the elevator's operational mode, a digital control strategy is employed to implement battery charging and discharging. The selected architecture in this thesis is a bidirectional three-phase interleaved buck/boost converter, enabling voltage regulation through this converter. This architecture is straightforward, highly reliable, and suitable for high-current applica-tions. Three sets of buck/boost converters are connected in parallel to reduce the load on a single unit, consequently reducing conduction losses. To minimize output current ripple, the converter adopts inter-leaved control, maintaining a 120-degree phase difference between each phase's switching signals. The thesis employs a dual-loop control meth-od. The outer voltage loop's primary objective is to control the output voltage, achieving a constant voltage output. Meanwhile, the inner cur-rent loop aims to control the currents of each phase's inductors, ensuring current sharing and a constant current output strategy. MATLAB is uti-lized to calculate the controller parameters and conduct stability analysis. These parameters are then implemented in the PSIM circuit simulation software to verify the circuit's operation. Finally, a completed Bi-directional DC-DC converter is developed, capable of converting high-side DC voltage from 290 V to 380 V and low-side DC voltage from 100 V to 200 V, with a maximum power of 7 kW.

[1]行政院國家永續發展署，國家永續發展目標修正本行政院。https://reurl.cc/dDgD36
[2]經濟部能源局，2022 非生產性質行業能源查核年報，經濟部能源局，2022年。https://www.ecct.org.tw/ReadFile/?p=
Knowledge&n=da52625a-dd3a-4c94-bbb5-9bcf5ee85f0e.pdf
[3]Acquaviva, Sebastiano. "Energy storage and recovery system for lift." Elevator Technology 20 (2014): 168-187
[4]Naayagi, R. T., and A. J. Forsyth. "Bidirectional DC-DC converter for aircraft electric energy storage systems." 5th IET International Conference on Power Electronics, Machines and Drives (PEMD 2010). IET, 2010.
[5]李其陵，應用於微電網之數位控制雙向直流-直流轉換器，國立 台灣科技大學電子工程系碩士論文，2015 年。
[6]孟宇軒，應用於電梯電力儲能系統之 雙向直流-直流轉換器，國立台灣科技大學電 子工程系碩士論文，2022年。
[7]蘇佳祐，輕油電系統應用之雙向多相電源轉換器，國立台灣科技大學電 子工程系碩士論文，2022年。
[8]黃大維，雙向直流-直流轉換器模組之研製，國立台灣科技大學電 子工程系碩士論文，2014 年
[9]台灣綠色生產力基金會，電梯電力回生裝置節能應用技術原理解說，練光祐教授
[10]吳義利，切換式電源轉換器，初版，高雄：文笙書局，2012 年。
[11]C. Parisi, “Multiphase Buck Design From Start to Finish (Part 1)” Texas Instruments, Application Report SLVA882, Apr. 2017.
[12]M. Xie, “How to select input capacitors for buck converter” Texas In-struments, Analog Application Journal, 2016
[13]Wennan Guo and P. K. Jain, "Small signal analysis and modeling of a voltage mode controlled multiphase voltage regulator with load line positioning and phase current bal-ancing," INTELEC 2008 - 2008 IEEE 30th International Telecommunications Energy Conference, San Diego, CA, USA, 2008, pp. 1-5, doi: 10.1109/INTLEC.2008.4664112.
[14]Wennan Guo and P. K. Jain, "Small signal analysis and modeling of a voltage mode controlled multiphase voltage regulator with load line positioning and phase current bal-ancing," INTELEC 2008 - 2008 IEEE 30th International Telecommunications Energy Conference, San Diego, CA, USA, 2008, pp. 1-5, doi: 10.1109/INTLEC.2008.4664112.
[15]W. Guo and P. K. Jain, “Analysis and Modeling of Voltage Mode Controlled Phase Current Balancing Technique for Multiphase Voltage Regulator to Power High Frequency Dynamic Load,” 2009 TwentyFourth Annual IEEE Applied Power Electronics Conference and Exposition, 2009, pp. 1190-1196, doi: 10.1109/APEC.2009.4802814
[16]S. Kapat, "Sampling Delay Effect on Stability in a Multi-Phase Buck Converter using Digital Current Mode Control," 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), Phoenix, AZ, USA, 2021, pp. 523-527, doi: 10.1109/APEC42165.2021.9486985.
[17]TMS320F2803x Microcontrollers Technical Reference Manual sprui10a, 2022. https://www.ti.com/lit/pdf/sprui10