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PV Based Microgrid with grid-Support grid-forming Inverter Control-(Simulation and Analysis)

Smart grid and Renewable Energy 2017年第1期8卷 1-30页

作者： Arangarajan Vinayagam K. S. V. Swarna Sui Yang Khoo Aman Than Oo Alex Stojcevski Faculty of Science Engineering and Built Environment Deakin University Geelong Australia Centre of Technology RMIT University Ho Chi Minh City Vietnam

Microgrid (MG) is a small entity of electrical network which comprises of various Distributed Generation (DG) sources, storage devices, and group of loads in various classes. MG provides reliable and secure energy supply to the critical loads of communities while operating either in on-grid or off-grid mode. In this study, a coordinated power management control strategy for a typical low voltage (LV) MG network with integration of solar Photovoltaic (PV) and storage facility has been developed and analysed in Matlab-Simu-link software environment at various modes (on-grid, off-grid, and on-grid to off-grid transition) of MG operation. Solar PV and battery power inverters are considered as grid-support grid-forming (GsGfm) Voltage Source Inverter (VSI) with the implementation of modified droop and virtual output impedance control strategies. Proposed control strategy supports coordinated control operation between PV units and battery storage, equal power sharing among the DG sources, and smooth MG mode transition with regulation of voltage and frequency level in MG network. In addition, voltage and current THD level were analysed and verified as per the standard of AS4777.

关键词： Microgrid Distributed Generation Power Management Power Sharing grid-Support grid-forming Inverter

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Simulation and application analysis of a hybrid energy storage station in a new power system

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Global Energy Interconnection 2024年第5期7卷 553-562页

作者： Tianyu Zhang Xiangjun Li Hanning Li Hangyu Sun Weisen Zhao National Key Laboratory of Renewable Energy grid-Integration China Electric Power Research Institute Beijing 100192P.R.China

As the proportion of renewable energy infiltrating the power grid increases,suppressing its randomness and volatility,reducing its impact on the safe operation of the power grid,and improving the level of new energy consumption are increasingly *** these purposes,energy storage stations(ESS)are receiving increasing *** article discusses the structure,working principle,and control methods of grid-following and grid-forming energy-storage converters,which are currently commonly used.A simulation analysis was conducted to investigate their dynamic response *** advantages and disadvantages of two types of energy storage power stations are discussed,and a configuration strategy for hybrid ESS is *** paper presents research on and a simulation analysis of grid-forming and grid-following hybrid energy storage systems considering two types of energy storage according to different capacity ***,a comparative analysis between the systems is presented.A simulation model was established using PSD-BPA(Power System Department-Bonneville Power Administration)to analyze the impact of the capacity ratio of grid-following and grid-forming ESS on their dynamic response characteristics in a hybrid *** addition,a development direction for future ESSs is indicated.

关键词： ESS grid-forming grid-following Simulation modeling Dynamic characteristic

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