Comparative Study on Electromagnetic and Electrome-chanical Transient Model for Grid-connected Photovoltaic Power System
- 1 State Key Lab. of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, China
- 2 Guangdong Electric Power Design Institute, Guangzhou, China
- 3 Guangdong Electric Power Design Institute, Guangzhou, China
- 4 State Key Lab. of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, China
- 5 State Key Lab. of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, China
Abstract
With the development of new energy technology, there are increasing applications of grid-connected photovoltaic power generation system. However, there is little research on development of electromechanical model of large scale photovoltaic power station. The computational speed will be very slow if electromagnetic transient model is used for stability study because of its complexity. Therefore, study on electromechanical transient model of grid-connected photovoltaic power generation system is of great meaning. In this paper, electromagnetic transient model of photovoltaic power generation system is introduced first, and then a general electromechanical transient model is proposed. These two kinds of simulation model are set up in PSCAD. By comparing the simulation results of two models, the correctness and validity of the electromechanical transient model is verified. It provides reference model for efficient simulation and modeling of grid-connected photovoltaic power station in large-scale power systems.
- Z. M. Zhao, J. Z. Liu, X. Y. Sun and L. Q. Yuan, “Solar Photovoltaic Power Generation and Its Application,” Beijing: Science Press, 2006.
- Z. Zhang, H. Shen and R. X. Cai, “Analysis of the Development Trend of Solar Energy and the Cost,” Power System Technology, 2008.
- F. Li, W. Li, F. Xue, Y. J. Fang, T. Shi and L. Z. Zhu, “Modeling and Simulation of Large-scale Grid-connected Photovoltaic System,” International Conference on Power System Technology,2010.
- R. K. Varma, A. R. Shah, S. Vinay and V. Tim, “Novel Control of a PV Solar System as STATCOM (PV-STATCOM) for Preventing Instability of Induction Motor Load,” 25th IEEE CCECE, 2012.
- R. K. Varma, V. Khadkikar and R. Seethapathy, “Nighttime Application of PV Solar Farm as STATCOM to Regulate Grid Voltage,” IEEE TRANSACTION on Energy Conversion, Vol. 24, No. 4, 2009.
- X. Yang and F. Yang, “Simulation of three-phase PV System based on PSCAD/EMTDC,” Journal of Shanghai University of Electric Power, 2011.
- Z. Q. Yao and X. Zhang, “Study and Simulation of Three-phase PV System Based on PSCAD/EMTDC,” Power System Protection and Control, 2010.
- W. Z. Yao and Y. T. Fu, “Study of Three-phase Grid-connected Inverter,” Power Electrionic technology,2011.
- F. Liu and W. P. Xu, “Study on Three-phase Grid-connected Control System Based on LCL Filter,” Journal of Solar Energy, 2008.
- C. H. Li and X. J. Zhu, “Modeling and Performance Analysis of Photovoltaic/fuel Cell Hybrid Power Generation Systems,” Power System Technology, Vol. 33, No. 12, 2009, pp. 88-92．
- Y. Jiao and Q. Song, “Practical Simulation Model of Photovoltaic Cells in Photovoltaic Generation System and Simulation,” Power System Technology, 2010.
- D. Q. Feng and X. F. Li, “Improved MPPT Algorithm Based on Output Properties of PV cells,” Computer Engineering and Design, 2009.
- C. Zhang, D. Zhao and X. N. He, “Implemention of MPPT Based on Power Equilibrium,” Power Electronics, 2010.
- Q. H. Rui, S. W. Du, W. D. Jiang and Q. Zhao, “Current Regulation for Three-phased Grid-connected Inverter Based on SVPWM Control,” Power Electronics, 2010.
- F. Liu, X. M. Zha and S. X. Duan, “Design and Research on Parameter of LCL Filter in Three-Phase Grid-connected Inverter,” Transactions of China Electrotechnical Society, 2010.