彈性交流輸電系統設備在現代電網中被廣泛的使用。也因此彈性交流輸電系統設備是現今電力電子研究的主流之ㄧ。彈性交流輸電系統設備已經成為電力系統研究中能簡單並有效提升系統穩定度與效率的方法之ㄧ。 近年來，不斷增加的電力需求造成系統中有電壓波動且有電壓不穩定的問題。在彈性交流輸電系統設備中，靜態同步虛功補償器在並聯的情況下可以防止電壓不穩定及電壓崩潰；換句話說可以在想要的匯流排上達到靜態虛功補償。綠色
再生能源的研究在發電系統研究中日益重要。以太陽能為例，比起其他形式的能源有數種優點；其中最容易架設在各種不同需要的位置。本文主要分析在分別有無靜態同步虛功補償器及太陽能板情況下的系統電力潮流。其次會測試多種在IEEE 14節點系統中找尋裝置最佳擺放位置的方法。最後將量測建立出的不同模組之的系統效率並且提出一種IEEE 14節點系統中讓電壓穩定的最佳解。

The use of FACTS devices has grown extensively in modern system grids. For this reason, FACTS devices has been the recent topic of researchers in power electronics. FACTS devices have been an essential element to power system studies as they can improve the system stability and efficiency with relative ease. In recent years, problems due to increasing demand has caused voltages of the systems to fluctuate and create instability. The STATCOM, being an element among the FACTS devices, prevents voltage instability and voltage collapses when set as a shunt element of the system; it will create a reactive power compensation at the desired bus.
As part of researching modern elements of power systems, renewable energy has become an important topic in system generation. Solar photovoltaic energy, an example of renewable energy, has several advantages over other forms of energy generation; One being the easiness to set up at different necessary locations. This thesis’ aim is to analyze the power flow of a system with and without a STATCOM device and/or a solar photovoltaic generator. Secondly, it will test several methods of searching the best location of these elements. Lastly, this thesis will measure the system efficiency of the different models proposed and it will provide the best possible solution to the voltage instability for the IEEE 14 bus system.

DECLARATION iii
ACKNOWLEDGEMENTS iv
摘要 v
ABSTRACT vi
TABLE OF CONTENTS vii
TABLE OF FIGURES x
TABLE OF TABLES xi
ABBREVIATIONS xiii
CHAPTER 1 1
INTRODUCTION 1
1.1 Background 1
1.2 Motivation 2
1.3Thesis Structure 2
CHAPTER 2 4
LITERATURE REVIEWS 4
2.1 IEEE 14- Bus system 4
2.2 FACTS Devices 8
2.3 STATCOM 10
2.4 STATCOM Theory 10
2.5 Solar Photovoltaic Generator 13
2.6 Common Algorithms for FACTS Devices 14
CHAPTER 3 17
METHODOLOGY 17
3.1 Software 17
3.2 Models and Algorithms 17
3.2.1 Sensitivity Using CPF 17
3.2.2 Highest Demand 18
3.2.3 Mid-Point Placement 19
3.2.4 SPVG and Two STATCOMs 19
3.2.5 Voltage Reference 20
3.2.6 STATCOM’s Rating 20
3.2.7 System’s Half Load 21
CHAPTER 4 22
RESULTS 22
4.1 Base Case 22
4.1.1 Base Case Power Flow Solution 22
4.1.2 Voltage Profile and CPF Results 24
4.2 Model with STATCOM at Bus 14 26
4.3 STATCOM at Bus 9 28
4.4 STATCOM at Bus 4 30
4.5 Power Generation with Single STATCOM 33
4.6 Power Loss with Single STATCOM 35
4.7 Additional Possible Solutions 40
4.7.1 Solar Photovoltaic Generator 40
4.7.2 SPVG with Single STATCOM 42
4.7.3 Double STATCOM 43
4.8 Voltage Levels SPVG and D.STATCOM 44
4.9 Power Generation of SPVG & D. STATCOM 45
4.10 Power Loss of SPVG & D. STATCOM 49
4.11 Changes in Voltage Reference in STATCOM Bus 9 52
4.12 Changes in Voltage Reference in STATCOM at Bus 14 56
4.13 Half Loading 59
4.14 Rating of the STATCOM 63
CHAPTER 5 65
CONCLUSION 65
5.1 Summary 65
5.2 Contributions of Thesis 66
REFERENCES 69
APPENDIX 73
A.1 Procedure 73
A.2 Instrumentation and Tools 74

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