For hybrid micro grid system, this paper is established the dynamic phasor model based on the micro grid branch model and the system load line model of micro grid. In order to study micro power grid operation control and energy optimization problem, considering the accuracy and rapidity of the models, the micro power grid dynamic phasor model is put forward and set up including micro power supply and power electronic converter. The simulation analysis is carried out, and is validated the feasibility and superiority of the model. This model lay the foundation for the whole micro grid system optimization control and energy management research.
Hybrid micro grid, Dynamic phasor model, Modeling and simulation
 Binayak Bhandari, Shiva Raj PoudeShiva Raj Poudel, Kyung-Tae Lee, et al., “Mathematical modeling of hybrid renewable energy system: A review on small hydro-solar-wind power generation,” International Journal of Precision Engineering and Manufacturing-Green Technology, vol. 1, no. 2, pp. 157-173, 2014. DOI: 10.1007/s40684-014-0021-4.
 Binayak Bhandari, Kyung-Tae Lee, Gil-Yong Lee, et al., “Optimization of hybrid renewable energy power systems: A review,” International Journal of Precision Engineering and Manufacturing-Green Technology, vol. 2, no. 1, pp. 1-14, 2015. DOI: 10.1007/s40684-015-0013-z.
 Camblong Haritza, Curea Octavian, Etxeberria Aitor, et al., “Research experimental platforms to study microgrids issues,” Int J Interact Des Manuf, vol. 31, pp. 1-13, 2015. DOI: 10.1007/s12008-015-0288-x.
 Sohrab Mirsaeidi, Dalila Mat Said, Mohammad Wazir Mustafa, et al. “Design and testing of a centralized protection scheme for micro-grids,” J. Cent. South Univ., vol. 22, pp. 3876-3887, 2015. DOI: 10.1007/s11771-015-2932-9.
 Zina Boussaada, Octavian Curea, Haritza Camblong, et al. “Multi-agent systems for the dependability and safety of microgrids,” Int J Interact Des Manuf Int J Interact Des Manuf., vol. 30, pp. 1-13, 2014. DOI: 10.1007/s12008-014-0257-9.
 Ritwik Majumder, “A hybrid microgrid with DC connection at back to back converters,” IEEE TRANSACTIONS ON SMART GRID, vol. 5, no. 1, pp. 251-259, 2014.
 Gabriella Ferruzzi, Giorgio Graditi, Federico Rossi, et al., “Optimal operation of a residential microgrid: The role of demand side management,” Intell Ind Syst, vol. 1, pp. 61 – 82, 2015. DOI: 10.1007/s40903-015-0012-y.
 Babak Mozafari and Sirus Mohammadi, “Optimal sizing of energy storage system for microgrids,” Indian Academy of Sciences, vol. 39, no. 4, pp. 819-841, 2014.
 V. Pavan Kumar and Ravikumar Bhimasingu, “Renewable energy based microgrid system sizing and energy management for green buildings,” J. Mod. Power Syst. Clean Energy, vol. 3, no. 1, pp. 1-13, 2015. DOI: 10.1007/s40565-015-0101-7.
 Thongchart Kerdphol, Yaser Qudaih, Masayuki Watanabe, et al., “RBF neural network-based online intelligent management of a battery energy storage system for stand-alone microgrids,” Kerdphol et al. Energy, Sustainability and Society, vol. 6, no. 5, pp. 1-16, 2016. DOI: 10.1186/s13705-016-0071-2.
 Sherali Zeadally, Al-Sakib Khan Pathan, Cristina Alcaraz, et al. “Towards privacy protection in smart grid,” Wireless Pers Commun, vol. 73, pp. 23-50, 2013. DOI: 10.1007/s11277-012-0939-1.
 Yunwei Li and Farzam Nejabatkhah. “Overview of control, integration and energy management of microgrids,” J. Mod. Power Syst. Clean Energy, vol. 2, no. 3, pp. 212-222, 2014. DOI: 10.1007/s40565-014-0063-1.
 Reza Roofegari Nejad and Seyed Masoud Moghaddas Tafreshi. “Operation planning of a smart microgrid including controllable loads and intermittent energy resources by considering uncertainties,” Arab J Sci Eng, vol. 39, pp. 1-19, 2014. DOI: 10.1007/s13369-014-1267-4.
 Kubilay Demir, Daniel Germanus and Neeraj Suri. “Robust QoS-aware communication in the smart distribution grid,” Peer-to-Peer Netw. Appl.. vol. 24, pp. 1-15, 2015. DOI: 10.1007/s12083-015-0418-z.
 An Luo, Qianming Xu, Fujun Ma, et al., “Overview of power quality analysis and control technology for the smart grid,” J. Mod. Power Syst. Clean Energy, vol. 4, no. 1, pp. 1-9, 2016. DOI: 10.1007/s40565-016-0185-8.