ANALYSIS OF BROADBAND OSCILLATION MECHANISM AND CHARACTERISTICS OF PHOTOVOLTAIC-THERMAL BUNDLED SYSTEM UNDER DC OUTPUT ENVIRONMENT

Ma Yanfeng; Zhao Qian; Zhao Shuqiang; Li Ran; Gao Li

doi:10.19912/j.0254-0096.tynxb.2022-1864

PDF(3012 KB)

Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (4) : 382-393. DOI: 10.19912/j.0254-0096.tynxb.2022-1864

ANALYSIS OF BROADBAND OSCILLATION MECHANISM AND CHARACTERISTICS OF PHOTOVOLTAIC-THERMAL BUNDLED SYSTEM UNDER DC OUTPUT ENVIRONMENT

Ma Yanfeng, Zhao Qian, Zhao Shuqiang, Li Ran, Gao Li

Author information +

History +

Abstract

In view of the broadband oscillation problem caused by the grid-connection of large-scale photovoltaic-thermal bundled integration system via traditional high voltage direct current （LCC-HVDC） transmission system, firstly, the state-space model and impedance model are established in this paper. The results show. that the simplified thermal power model cannot reflect the interaction mode between photovoltaic-thermal bundled integration and LCC-HVDC. Therefore, a six-order detailed thermal power model must be adopted, and then the possible oscillation frequency of the system was calculatedby eigenvalue method. Secondly, impedance method is used to analyze the broadband oscillation, interaction mechanism of the system and the influence of parameter change on the oscillation mode of the system. Finally, PSCAD/EMTDC platform was used to verify the mechanism of broadband oscillation and the effect of the influencing factors. The results show that the broadband oscillation is caused by the negative damping characteristics of the system in some frequency bands. The change of element parameters will change the amplitude of broadband oscillation by affecting the damping of the system. Furthermore, the reasonable parameter range of filter and converter is obtained.

Key words

photovoltaic power systems / HVDC power transmission / broadband oscillation / impedance analysis method / interaction

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Ma Yanfeng, Zhao Qian, Zhao Shuqiang, Li Ran, Gao Li. ANALYSIS OF BROADBAND OSCILLATION MECHANISM AND CHARACTERISTICS OF PHOTOVOLTAIC-THERMAL BUNDLED SYSTEM UNDER DC OUTPUT ENVIRONMENT[J]. Acta Energiae Solaris Sinica. 2024, 45(4): 382-393 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1864

References

[1] 杨富强, 吴迪. “十四五”时期我国能源转型实现碳达峰的路径建议[J]. 可持续发展经济导刊, 2021(增刊2): 21-22.
YANG F Q, WU D.Suggestions on the path of realizing peak carbon dioxide emissions in China's energy transformation during the 14 th Five-Year Plan period[J]. China sustainability tribune, 2021(S2): 21-22.
[2] 孙宏斌, 潘昭光, 孙勇, 等. 跨界思维在能源互联网中应用的思考与认识[J]. 电力系统自动化, 2021, 45(16): 63-72.
SUN H B, PAN Z G, SUN Y, et al.Reflection and understanding of application of transboundary thinking in energy Internet[J]. Automation of electric power systems, 2021, 45(16): 63-72.
[3] 张大海, 贠韫韵, 王小君, 等. 计及风光不确定性的新能源虚拟电厂多时间尺度优化调度[J]. 太阳能学报, 2022, 43(11): 529-537.
ZHANG D H, YUN Y Y, WANG X J, et al.Multi-time scale of new energy scheduling optimization for virtual power plant considering uncertainty of wind power and photovoltaic power[J]. Acta energiae solaris sinica, 2022, 43(11): 529-537.
[4] 刘辉, 高舜安, 孙大卫, 等. 光伏虚拟同步发电机并网小信号稳定性分析[J]. 太阳能学报, 2021, 42(2): 417-424.
LIU H, GAO S A, SUN D W, et al.Small signal stability analysis of grid-connected photovoltaic virtual synchronous generators[J]. Acta energiae solaris sinica, 2021, 42(2): 417-424.
[5] 姜齐荣, 王亮, 谢小荣. 电力电子化电力系统的振荡问题及其抑制措施研究[J]. 高电压技术, 2017, 43(4): 1057-1066.
JIANG Q R, WANG L, XIE X R.Study on oscillations of power-electronized power s ystem and their mitigation schemes[J]. High voltage engineering, 2017, 43(4): 1057-1066.
[6] 程浩忠, 李隽, 吴耀武, 等. 考虑高比例可再生能源的交直流输电网规划挑战与展望[J]. 电力系统自动化, 2017, 41(9): 19-27.
CHENG H Z, LI J, WU Y W, et al.Challenges and prospects for AC/DC transmission expansion planning considering high proportion of renewable energy[J]. Automation of electric power systems, 2017, 41(9): 19-27.
[7] 孙铭, 陈磊, 徐遐龄, 等. 低频振荡类型多判据综合辨别实用化方法[J]. 电网技术, 2019, 43(8): 2968-2976.
SUN M, CHEN L, XU X L, et al.Synthetic multi-criterion method for type discrimination of low frequency oscillation[J]. Power system technology, 2019, 43(8): 2968-2976.
[8] 谢小荣, 贺静波, 毛航银, 等. “双高”电力系统稳定性的新问题及分类探讨[J]. 中国电机工程学报, 2021, 41(2): 461-475.
XIE X R, HE J B, MAO H Y, et al.New issues and classification of power system stability with high shares of renewables and power electronics[J]. Proceedings of the CSEE, 2021, 41(2): 461-475.
[9] 陈露洁, 徐式蕴, 孙华东, 等. 高比例电力电子电力系统宽频带振荡研究综述[J]. 中国电机工程学报, 2021, 41(7): 2297-2310.
CHEN L J, XU S Y, SUN H D, et al.A survey on wide-frequency oscillation for power systems with high penetration of power electronics[J]. Proceedings of the CSEE, 2021, 41(7): 2297-2310.
[10] 马宁宁, 谢小荣, 贺静波, 等. 高比例新能源和电力电子设备电力系统的宽频振荡研究综述[J]. 中国电机工程学报, 2020, 40(15): 4720-4732.
MA N N, XIE X R, HE J B, et al.Review of wide-band oscillation in renewable and power electronics highly integrated power systems[J]. Proceedings of the CSEE, 2020, 40(15): 4720-4732.
[11] ALI MOHAMMADPOUR H, SANTI E.SSR damping controller design and optimal placement in rotor-side and grid-side converters of series-compensated DFIG-based wind farm[J]. IEEE transactions on sustainable energy, 2015, 6(2): 388-399.
[12] YAN Y B, ZHU W J, OUYANG F, et al.Battery energy storage power station based suppression method for power system broadband oscillation[C]//2019 IEEE 3rd Conference on Energy Internet and Energy System Integration (EI2). Changsha, China, 2020: 50-54.
[13] 李光辉, 王伟胜, 刘纯, 等. 直驱风电场接入弱电网宽频带振荡机理与抑制方法(一): 宽频带阻抗特性与振荡机理分析[J]. 中国电机工程学报, 2019, 39(22): 6547-6562.
LI G H, WANG W S, LIU C, et al.Mechanism analysis and suppression method of wideband oscillation of PMSG wind farms connected to weak grid(part I): analysis of wideband impedance characteristics and oscillation mechanism[J]. Proceedings of the CSEE, 2019, 39(22): 6547-6562.
[14] BO X, WANG L Y, GAO L, et al.STFT analysis of broadband oscillation in VSC-HVDC connected to offshore wind farms[J]. Journal of physics: conference series, 2021, 1754(1): 012039.
[15] 伍文华. 新能源发电接入弱电网的宽频带振荡机理及抑制方法研究[D]. 长沙: 湖南大学, 2019.
WU W H.Research on wide-bandwidth oscillation mechanism and suppression methods of renewable energy power generation connected to the weak grid[D]. Changsha: Hunan University, 2019.
[16] 孙瑶, 韩民晓, 黄永宁, 等. 考虑换流器外环特性的双馈风电场并网稳定性分析[J]. 电工电能新技术, 2021, 40(2): 15-24.
SUN Y, HAN M X, HUANG Y N, et al.General impedance model with out-loop for DFIG wind farm stability analysis[J]. Advanced technology of electrical engineering and energy, 2021, 40(2): 15-24.
[17] 于家英. 光伏并网系统宽频振荡特性研究[D]. 北京: 华北电力大学, 2021.
YU J Y.Research on broadband oscillation characteristics of photovoltaic grid connected system[D]. Beijing: North China Electric Power University, 2021.
[18] 刘芳, 刘威, 刘世权, 等. 宽范围电网下并网逆变器延时小信号建模及不连续稳定区间分析[J]. 太阳能学报, 2022, 43(1): 418-428.
LIU F, LIU W, LIU S Q, et al.Small signal modeling and discontinuous stability regions analysis of grid-connected inverters considering control delay in wide range grid[J]. Acta energiae solaris sinica, 2022, 43(1): 418-428.
[19] 姚致清, 于飞, 赵倩, 等. 基于模块化多电平换流器的大型光伏并网系统仿真研究[J]. 中国电机工程学报, 2013, 33(36): 27-33, 6.
YAO Z Q, YU F, ZHAO Q, et al.Simulation research on large-scale PV grid-connected systems based on MMC[J]. Proceedings of the CSEE, 2013, 33(36): 27-33, 6.
[20] 刘振亚, 张启平, 董存, 等. 通过特高压直流实现大型能源基地风、光、火电力大规模高效率安全外送研究[J]. 中国电机工程学报, 2014, 34(16): 2513-2522.
LIU Z Y, ZHANG Q P, DONG C, et al.Efficient and security transmission of wind, photovoltaic and thermal power of large-scale energy resource bases through UHVDC projects[J]. Proceedings of the CSEE, 2014, 34(16): 2513-2522.
[21] 赵书强, 沈俊铃, 邵冰冰. 直驱风电场经柔直并网系统全运行区域次同步振荡特性分析[J]. 太阳能学报, 2021, 42(12): 163-173.
ZHAO S Q, SHEN J L, SHAO B B.Subsynchronous oscillation characteristics analysis of grid-connected direct-drive wind farms via VSC-HVDC system under whole operation regions of D-PMSG[J]. Acta energiae solaris sinica, 2021, 42(12): 163-173.
[22] 姚磊. 光伏与火电打捆系统的次同步振荡问题研究[D]. 北京: 华北电力大学, 2018.
YAO L.Research of subsynchronous oscillation in PV-thermal bundled system[D]. Beijing: North China Electric Power University, 2018.
[23] CHEN Y, ZHANG Z Q, WANG Y, et al.Studies on high-frequency generator tripping strategy for sending system of wind-PV-thermal-bundled power transmitted by HVDC[C]//International Conference on Renewable Power Generation (RPG 2015). Beijing, China, 2015:1-6.
[24] 高本锋, 姚磊. 基于改进自抗扰控制的抑制光火打捆经直流送出系统的次同步振荡策略[J]. 电网技术, 2018, 42(2): 533-540.
GAO B F, YAO L.Sub-synchronous oscillation suppression for photovoltaic-thermal-bundled power system based on improved active disturbance rejection control[J]. Power system technology, 2018, 42(2): 533-540.
[25] 高本锋, 姚磊, 李忍, 等. 大规模光伏电站并网的振荡模式分析[J]. 电力自动化设备, 2017, 37(8): 123-130.
GAO B F, YAO L, LI R, et al.Analysis on oscillation modes of large-scale grid-connected PV power plant[J]. Electric power automation equipment, 2017, 37(8): 123-130.
[26] 程时杰, 曹一家, 江全元. 电力系统次同步振荡的理论和方法[M]. 北京: 科学出版社, 2009: 148-159.
CHENG S J, CAO Y J, JIANG Q Y.Electricity power system's theory and method[M]. Beijing: Science Press, 2009: 148-159.
[27] 李春来, 王晶, 杨立滨. 典型并网光伏电站的等值建模研究及应用[J]. 电力建设, 2015, 36(8): 114-121.
LI C L, WANG J, YANG L B.Equivalent modeling research and application of typical grid connected photovoltaic power station[J]. Electric power construction, 2015, 36(8): 114-121.
[28] 郭春义, 宁琳如, 王虹富, 等. 基于开关函数的LCC-HVDC换流站动态模型及小干扰稳定性[J]. 电网技术, 2017, 41(12): 3862-3870.
GUO C Y, NING L R, WANG H F, et al.Switching-function based dynamic model of LCC-HVDC station and small signal stability analysis[J]. Power system technology, 2017, 41(12): 3862-3870.