Harmonic Influencing Factors and Their Characterization Under Black Start Mode of Floating Power Station

doi:10.12096/j.2096-4528.pgt.22085

Abstract

Abstract:

When floating power stations use static frequency converters to black-start floating power station units, the harmonic effects are more serious than onshore power stations due to the isolated grid system and the limited electrical structure. There is still a lack of theoretical research on the relationship between the harmonics generated during the black start process of floating power stations and their influencing factors. Firstly, the equivalence circuits on the black-start process of floating power stations were presented. Then, the mathematically analysis of harmonics was carried out on the basis of equivalence circuits, and the expression of the total harmonic distortion on its influencing factors was obtained. Furthermore,a characterization parameter of harmonic influencing factors, namely harmonic interfere coefficient, was proposed, and the physical meaning and application method of harmonic interfere coefficient were discussed. Finally, a simulation example was used to analyze the relationship between the total harmonic distortion and harmonic interfere coefficient. It is concluded that the harmonic interfere coefficient is positively correlated with the total harmonic distortion, which shows the rationality and effectiveness of the harmonic interfere coefficient.

Key words: floating power station, black start, harmonic influencing factors, characterization parameter, harmonic interfere coefficient

CLC Number:

TM 711

Zhongkang LIU, Xitian WANG, Zhengyu ZHAO, Jiangyue XIONG. Harmonic Influencing Factors and Their Characterization Under Black Start Mode of Floating Power Station[J]. Power Generation Technology, 2022, 43(6): 843-850.

Figures/Tables 9

Fig. 1 Topological structure diagram of black start system for floating power station

Fig. 2 Black start equivalent circuit of floating power station

Fig. 3 Black start simulation model of floating power station

Tab. 1 Simulation model parameter setting

参数	数值
PCC处额定电压/kV	6.3
换流变压器漏抗/pu	0.18
盘车转速/(r·min^-1)	300
点火转速/(r·min^-1)	600
SFC退出转速/(r·min^-1)	2 100
SFC功率P_SFC/MW	0~3.0
短路容量S_sc/(MV·A)	15/30/60/150

Fig. 4 Output power curves of SFC during black start

Fig. 5 THD curves during black start

Fig. 6 Impact of different PSFC on maximum THD

Fig. 7 Relationship between short circuit capacity and THD

Fig. 8 Relationship between HIC and THD

References 18

1	张文昊．浮式LNG发电船设计关键技术研究[D]．武汉：武汉理工大学，2018．
	ZHANG W H ．Research on key technologies of floating LNG power generation ship[D]．Wuhan：Wuhan University of Technology，2018．
2	李旭，罗嘉，丁勇，等．辅助重型燃气轮机黑启动的大容量储能系统控制技术及其应用[J]．中国电机工程学报，2022，42(3)：1069-1081．
	LI X， LUO J， DING Y，et al ．Control technology and application of large-scale energy storage system assisting black start of heavy duty gas turbine[J]．Proceedings of the CSEE，2022，42(3)：1069-1081．
3	刘鹏凯．抽水蓄能机组变频起动暂态过程监测方法研究[D]．武汉：武汉大学，2017．
	LIU P K ．Study on transient process monitoring method of frequency conversion starting in pumped storage power unit[D]．Wuhan：Wuhan University，2017．
4	葛进．国产静止变频器在燃机系统中的应用[J]．电工技术，2020(16)：1-2．
	GE J ．Application of domestic static frequency converter in gas turbine system[J]．Electric Engineering，2020(16)：1-2．
5	舒杨．SFC装置在燃机启动过程中的Simulink可视化仿真[D]．上海：上海交通大学，2015．
	SHU Y ．The simulink visualization simulation of SFC device in the process of combustion engine start[D]．Shanghai：Shanghai Jiao Tong University，2015．
6	胡可嘉，张军，张天宇，等．基于Matlab/Simulink仿真的H级燃机发电机静态变频启动装置谐波分析[J]．发电技术，2020，41(6)：697-705． doi:10.12096/j.2096-4528.pgt.19131
	HU K J， ZHANG J， ZHANG T Y，et al ．Harmonic analysis of H class gas turbine generator starting with static frequency converter based on Matlab/Simulink simulation[J]．Power Generation Technology，2020，41(6)：697-705． doi:10.12096/j.2096-4528.pgt.19131
7	袁波，张健，张顺仁，等．抽水蓄能SFC拖动过程电能质量测试方案设计及应用[J]．水电能源科学，2021，39(2)：183-185．
	YUAN B， ZHANG J， ZHANG S R，et al ．Power grid fault diagnosis method based on DHNN fingerprint database[J]．Water Resources and Power，2021，39(2)：183-185．
8	李博文．基于Speedgoat的抽水蓄能机组静止变频起动控制策略研究[D]．成都：电子科技大学，2021．
	LI B W ．Research on the control strategy of static frequency conversion starting of pumped storage unit based on Speedgoat[D]．Chengdu：University of Electronic Science and Technology of China，2021．
9	泰荣，李子龙，王熙．抽水蓄能电站网侧谐波分析与消除[J]．水电与抽水蓄能，2019，5(5)：78-82．
	TAI R， LI Z L， WANG X ．Analysis and elimination of harmonics in power grid of pumped storage power station[J]．Hydropower and Pumped Storage，2019，5(5)：78-82．
10	李基成，现代同步发电机励磁系统设计及应用[M]．3版．北京：中国电力出版社，2009．
	LI J C ．Design and application of excitation system of modern synchronous generator[M]．3rd Edition．Beijing：China Electric Power Press，2009．
11	陈海华，李新成，胡旦华，等．具有黑启动功能的液化天然气一体化厂用电方案[J]．现代电力，2020，37(5)：456-462． doi:10.19725/j.cnki.1007-2322.2019.1109
	CHEN H H， LI X C， HU D H，et al ．An liquefied natural gas-integrative auxiliary power scheme with black start function[J]．Modern Electric Power，2020，37(5)：456-462． doi:10.19725/j.cnki.1007-2322.2019.1109
12	IEEE ． IEEE guide for the design and application of power electronics in electrical power systems on ships：IEEE Std 1662-2008 [S]．USA：IEEE，2009．
13	王兆安，刘进军．电力电子技术[M]．北京：机械工业出版社，2009．
	WANG Z A， LIU J J ．Power electronics technology [M]．Beijing：Mechanical Industry Press，2009．
14	全国电磁兼容标准化技术委员会．电磁兼容试验和测量技术供电系统及所连设备谐波、间谐波的测量和测量仪器导则： [S]．北京：中国标准出版社，2017．
	National Electromagnetic Compatibility Standardization Technical Committee ． Test and measurement technology power supply system and connected equipment harmonic and inter-harmonic measurement and measuring instruments guide： [S]．Beijing：Standards Press of China，2017．
15	全国电压电流等级和频率标准化技术委员会．电能质量公用电网谐波： [S]．北京：中国标准出版社，1993．
	National Technical Committee for Standardization of Voltage and Current Levels and Frequency ． Quality of electric energy supply Harmonic in public supply network： [S]．Beijing：Standards Press of China，1993．
16	李兴源．高压直流输电系统[M]．北京：科学出版社，2010．
	LI X Y ．HVDC transmission system[M]．Beijing：Science Press，2010．
17	陶大军，戈宝军，林鹏，等．发电电动机静止变频器起动低频运行阶段的谐波特性[J]．中国电机工程学报，2014，34(36)：6450-6457．
	TAO D J， GE B J， LIN P，et al ．Harmonics characteristics of generator/motor starting with static frequency converter during low frequency[J]．Proceedings of the CSEE，2014，34(36)：6450-6457．
18	辛焕海，章枫，于洋，等．多馈入直流系统广义短路比：定义与理论分析[J]．中国电机工程学报，2016，36(3)：633-647．
	XIN H H， ZHANG F， YU Y，et al ．Generalized short-circuit ratio of multi-infeed DC system：definition and theoretical analysis[J]．Proceedings of the Chinese Society of Electrical Engineering，2016，36(3)：633-647．

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