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研究生：	張濰傑 Zhang, Wei-Jie
論文名稱：	應用於交直流混合離岸風場之模組化多階轉換器抑制蒸氣渦輪發電機次同步共振之研究 Subsynchronous Resonance Suppression of Steam Turbine Generators Using Modular Multilevel Converters Applied to Hybrid AC/DC Offshore Wind Farms
指導教授：	王醴 Wang, Li
學位類別：	碩士 Master
系所名稱：	電機資訊學院 - 電機工程學系 Department of Electrical Engineering
論文出版年：	2026
畢業學年度：	114
語文別：	中文
論文頁數：	294
中文關鍵詞：	離岸風場、全直流串聯風場架構、次同步共振、人工蜂群演算法、多端模組化多階轉換器、全釩氧化還原液流電池、特徵值分析
外文關鍵詞：	Offshore wind farm, All-DC series wind farm architecture, subsynchronous resonance, artificial bee colony algorithm, multi-terminal modular multilevel converter, vanadium redox flow battery, Eigenvalue analysis
相關次數：	點閱：59 下載：3
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本論文對比離岸風場架構與儲能策略之動態成效，並提出次同步共振抑制方案。首先建構全交流、全直流並聯及全直流串聯三種風場架構，並針對不含儲能、包含全釩氧化還原液流電池、以及包含全釩氧化還原液流電池搭配人工蜂群演算法優化之比例-積分-微分阻尼控制器三種情境進行多案例對比，評估其對系統之改善成效。隨後，利用全直流串聯架構之直接升壓優勢，本論文將其定為核心架構，建構結合串聯直流風場與交流電網之三端高壓直流混合輸電架構。風場電力經直流線路傳輸至第三端模組化多階轉換器，並併入美國電機電子工程師學會第二標準模型、第一系統電網。針對串聯電容補償引發之次同步共振與機組扭轉振盪，本論文於第三端轉換器設計阻尼控制器，全面驗證其抑制成效。最後，透過穩態功率潮流、特徵值根軌跡圖、考量風速與波浪變動之小干擾動態模擬，以及三相接地故障下之大干擾暫態模擬，全面驗證本架構之穩定度與韌性。

This thesis compares the dynamic performance of various offshore wind farm (OWF) architectures and energy storage strategies, and proposes a mitigation scheme for subsynchronous resonance (SSR). First, three OWF topologies—All-AC, All-DC parallel, and All-DC series configuration—are constructed. To evaluate their improvement on system performance, a comprehensive multi-scenario comparative analysis is conducted across three conditions: without energy storage, with a vanadium redox flow battery (VRFB), and with a VRFB integrated with a proportional-integral-derivative (PID) damping controller optimized by the artificial bee colony (ABC) algorithm. Subsequently, leveraging the unique advantage of the All-DC series architecture in direct step-up voltage stacking, this configuration is selected as the core topology to develop a three-terminal hybrid high-voltage direct current (HVDC) transmission system that integrates the series DC wind farm with an AC grid. The wind power is transmitted via DC lines to a third-terminal modular multilevel converter (MMC) and grid-connected to the IEEE Second Benchmark Model, System-1 grid. To address the SSR and generator torsional oscillations induced by series capacitor compensation, a dedicated damping controller is designed for the third-terminal converter, and its mitigation effectiveness is comprehensively verified. Finally, the stability and resilience of the proposed architecture are thoroughly validated through steady-state power flow calculations, eigenvalue root locus analysis, small-signal dynamic simulations considering wind speed and wave variations, and large-signal transient simulations under grid three-phase-to-ground faults.

摘要	I
Abstract	II
誌謝	X
目錄	XI
表目錄	XVI
圖目錄	XX
符號說明	XXVII
第一章 緒論	1
1-1 研究背景與動機	1
1-2 串聯電容補償之簡介	3
1-3 相關文獻回顧	6
1-4 本論文之貢獻	11
1-5 研究內容概述	12
第二章 研究架構之系統與數學模型	14
2-1 前言	14
2-2研究系統架構	14
2-3固定基座式風力發電系統	22
2-3-1固定基座式風力發電系統之風渦輪機數學模型	22
2-3-2固定基座式風力發電系統之旋角控制器數學模型	24
2-3-3固定基座式風力發電系統之質量-彈簧-阻尼器系統數學模型	25
2-3-4固定基座式風力發電系統之永磁式同步發電機數學模型	27
2-3-5機械側轉換器之數學模型	30
2-3-6系統側轉換器及傳輸線之數學模型	32
2-4浮動基座式風力發電系統	34
2-4-1波浪之數學模型	35
2-4-2浮動平台之數學模型	36
2-4-3浮動基座式風力發電系統之風渦輪機數學模型	39
2-4-4浮動基座式風力發電系統旋角控制器之數學模型	40
2-4-5浮動基座式風力發電系統質量-彈簧-阻尼器系統之數學模型	42
2-4-6浮動基座式風力發電系統永磁式同步發電機之數學模型	44
2-4-7浮動基座式風力發電系統機械側轉換器之數學模型	47
2-4-8浮動基座式風力發電系統系統側轉換器及傳輸線之數學模型	49
2-5全直流風力發電機系統	51
2-5-1直流對直流升壓轉換器數學模型	51
2-5-2並聯型全直流風力發電系統之數學模型	53
2-5-3串聯型全直流風力發電系統之數學模型	55
2-6同步發電機及其子系統	58
2-6-1同步發電機之數學模型	59
2-6-2同步發電機激磁機之數學模型	61
2-6-3同步發電機蒸氣渦輪機之數學模型	63
2-6-4同步發電機調速機之數學模型	65
2-7儲能系統	65
2-7-1全釩氧化還原液流電池之數學模型	66
2-7-2雙向直流對直流轉換器之數學模型	71
2-7-3雙向直流對交流轉換器之數學模型	73
2-8多端高壓直流系統	80
2-8-1模組化多階轉換器之數學模型	81
2-8-2模組化多階轉換器之主要控制器數學模型	83
2-8-3模組化多階轉換器之環流抑制控制器數學模型	85
2-8-4高壓直流傳輸線之數學模型	86
2-9蒸氣渦輪發電機系統	87
2-9-1蒸氣渦輪機-同步發電機等效四質量-彈簧-阻尼器之數學模型	88
2-9-2蒸氣渦輪機轉矩之數學模型	92
2-10串聯電容器組之數學模型	94
第三章 阻尼控制器設計	95
3-1 前言	95
3-2 特徵值與參與因子求得方法	95
3-3 研究系統架構之阻尼控制器模型	98
3-3-1架構一系統之輔助阻尼控制器模型	98
3-3-2架構二系統之輔助阻尼控制器模型	99
3-4人工蜂群演算法	100
3-5人工蜂群演算法之阻尼控制器設計	102
3-6靈敏度分析	105
第四章 穩態與小訊號穩定度分析	108
4-1前言	108
4-2架構一電力潮流分析	108
4-2-1架構一全交流風場系統工作點變動分析	109
4-2-2架構一全直流並聯風場系統工作點變動分析	112
4-2-3架構一全直流串聯風場系統工作點變動分析	115
4-3架構一系統特徵值與模態分析結果	118
4-3-1架構一全交流風場系統特徵值與模態分析結果	118
4-3-2架構一全直流並聯風場系統特徵值與模態分析結果	122
4-3-3架構一全直流串聯風場系統特徵值與模態分析結果	126
4-4架構一風速變動之系統根軌跡圖分析	129
4-4-1架構一全交流風場之系統根軌跡圖分析	129
4-4-2架構一全直流並聯風場之系統根軌跡圖分析	137
4-4-3架構一全直流串聯風場之系統根軌跡圖分析	144
4-5架構一頻域分析	151
4-5-1架構一波德圖分析	151
4-5-2架構一奈奎斯特圖分析	153
4-5-3架構一尼科爾斯圖分析	155
4-6架構二扭轉振盪模態與特徵向量	156
4-7架構二系統之小訊號穩定度分析	158
4-7-1架構二系統風速之變動	160
4-7-2架構二系統串聯補償比之變動	165
4-7-3架構二系統同步發電機輸出實功之變動	170
4-7-4架構二系統同步發電機輸出功率因數之變動	175
第五章 動態與暫態分析	180
5-1前言	180
5-2架構一系統浮動基座式風場風速與波浪變動之動態分析	180
5-2-1架構一全交流風場系統之動態分析	180
5-2-2架構一全直流並聯風場系統之動態分析	186
5-2-3架構一全直流串聯風場系統之動態分析	191
5-3架構一系統三相短路故障之暫態分析	196
5-3-1架構一全交流風場系統之暫態分析	196
5-3-2架構一全直流並聯風場系統之暫態分析	202
5-3-3架構一全直流串聯風場系統之暫態分析	208
5-4架構二系統浮動基座式風場風速與波浪變動之動態分析	214
5-5架構二系統三相短路故障之暫態分析	221
5-6電網韌性分析	228
5-6-1電網韌性指標	228
5-6-2架構一系統之電網韌性分析	229
5-6-3架構二系統之電網韌性分析	232
第六章 結論	234
6-1結論	234
6-2未來研究方向	237
參考文獻	239
附錄：研究系統之參數	245
                                    

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