|
|
- 2015
大规模光伏发电并网对互联电力系统阻尼特性的影响及其阻尼控制策略
|
Abstract:
针对未来大规模光伏发电系统并网对互联电力系统安全稳定性可能造成的影响,从系统阻尼特性角度展开详细研究。首先建立了适用于稳定分析的光伏发电系统的动态模型,然后搭建了含光伏发电系统的IEEE16机68节点测试系统,采用特征值分析法和模态分析法,研究了光伏发电的不同接入位置以及不同渗透率对互联电力系统阻尼特性造成的影响。结果表明:光伏发电系统不直接参与系统机电振荡,而主要通过对系统潮流的影响改变系统阻尼,并且由于阻尼控制环节的缺失可能对系统阻尼产生一定的负面影响;文中提出的光伏发电系统的阻尼控制策略可有效地抑制该负面影响,进一步提升了互联电力系统对光伏并网的接纳能力。
The future large？？scale photovoltaic integration into the grid would affect security and stability of interconnected power systems. Beginning with research on the system damping characteristics, a dynamic model of photovoltaic power system for stability analysis is established, and then the IEEE68 bus test system with PV is constructed. The eigenvalue analysis and modal analysis are adopted to investigate the influence on the damping characteristics of different access location and different penetrating of PV system. The results show that the photovoltaic power generation system is not directly involved in the electro？？mechanical oscillations, but changes the system damping mainly by the impact on power flow, and exerts certain negative effects on the system damping for lack of damping control links. The proposed PV system damping control strategy enables to effectively inhibit the negative effects, and enhance the PV system adaptability of the interconnected power system
| [1] | ［4］赵平, 严玉廷. 并网光伏发电系统对电网影响的研究 ［J］. 电气技术, 2009, 3(4): 41？？44. |
| [2] | ZHAO Zhengming, LEI Yi, HE Fanbo, et al. Over view of large？？scale grid？？connected photovoltaic power plant ［J］. Automation of Electric Power Systems, 2011, 35(12): 101？？107. |
| [3] | ［12］ENSLIN J H R. Dynamic reactive power and energy storage for integrating intermittent renewable energy ［C］∥2010 IEEE Power and Energy Society General Meeting. Piscataway, NJ, USA: IEEE, 2010: 1？？4. |
| [4] | ［13］PANDA S. Robust coordinated design of multiple and MULTI？？type damping controller using differential evolution algorithm ［J］. International Journal of Electrical Power ＆ Energy Systems, 2011, 33(4): 1018？？1030. |
| [5] | ［14］HASHMANI A A, ERLICH I. Delayed？？input power system stabilizer using supplementary remote signals ［J］. Control Engineering Practice, 2011, 19(8): 893？？899. |
| [6] | ［3］YANG B, LI W, ZHAO Y, et al. Design and analysis of a grid？？connected photovoltaic power system ［J］. IEEE Transactions on Power Electronics, 2010, 25(4): 992？？1000. |
| [7] | ［6］ACHILLES S, SCHRAMM S, BEBIC J. Transmission system performance analysis for high？？penetration photovoltaics ［M］. New York, USA: National Renewable Energy Laboratory, 2008: 31？？32. |
| [8] | ［7］周林, 李怀花, 张林强, 等. 光伏并网系统小信号动态建模及控制参数灵敏度分析 ［J］. 电力系统保护与控制, 2013, 41(5): 1？？5. |
| [9] | ZHOU Lin, LI Huaihua, ZHANG Linqiang, et al. Small？？signal dynamic modeling of grid？？connected PV system and eigenvalue sensitivity analysis of the controller parameters ［J］. Power System Protection and Control, 2013, 41(5): 1？？5. |
| [10] | ［8］DU W, WANG H, XIAO L Y. Power system small？？signal stability as affected by grid？？connected photovoltaic generation ［J］. European Transactions on Electrical Power, 2012, 22(5): 688？？703. |
| [11] | ZHAO Ping, YAN Yuting. Research on effect of grid？？connected photovoltaic system on power grid ［J］. Electrical Technology, 2009, 3(4): 41？？44. |
| [12] | ［5］赵争鸣, 雷一, 贺凡波, 等. 大容量并网光伏电站技术综述 ［J］. 电力系统自动化, 2011, 35(12): 101？？107. |
| [13] | ［10］杨文杰. 光伏发电并网与微电网运行控制仿真研究 ［D］. 成都: 西南交通大学, 2010. |
| [14] | ［1］SHEA J J. Clean electricity from photovoltaics ［M］. London, UK: Imperial College Press, 2001: 46？？51 |
| [15] | ［2］ELTAWIL M A, ZHAO Z. Grid？？connected photovoltaic power systems: technical and potential problems: a review ［J］. Renewable and Sustainable Energy Reviews, 2010, 14(1): 112？？129. |
| [16] | ［9］TAN Y T, KIRSCHEN D S, JENKINS N. A model of PV generation suitable for stability analysis ［J］. IEEE Transactions on Energy Conversion, 2004, 19(4): 748？？755. |
| [17] | ［11］ROGERS G. Power system oscillations ［M］. Boston, USA: Kluwer Academic, 2000: 61？？63. |
