Results 1 to 10 of about 86,230 (167)
Seamless Transition of Microgrids Operation From Grid-Connected to Islanded Mode
IEEE Transactions on Smart Grid, 2020 One of the main features of Microgrids is the ability to operate in both grid-connected mode and islanding mode. In each mode of operation, distributed energy resources (DERs) can be operated under grid-forming or grid-following control strategies. In grid-connected mode, DERs usually work under grid-following control strategy, while at least one of ...
Majid Shahabi +2 more
exaly +3 more sources
Energies, 2019 Grid-connected voltage source inverters (VSIs) with LCL filters have been widely used for distributed generation systems (DGs). Various control methods have been studied to achieve good performance.
Min Huang +3 more
doaj +3 more sources
Pre-synchronization Control Method for Virtual Synchronous Generator Based on Power Matching and Self-adaptive Inertia [PDF]
Zhengzhou Daxue xuebao. Gongxue ban, 2023 It was necessary for the virtual synchronous generator (VSG) to be synchronized with the grid when it switched from off grid mode to grid connected mode.
XING Pengxiang +5 more
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Applying Sliding-Mode Control to a Double-Stage Single-Phase Grid-Connected PV System [PDF]
Journal of Renewable Energy and Environment, 2021 This study investigates a new double-stage single-phase Grid-Connected (GC) Photo-Voltaic (PV) system. This PV system includes a DC-DC Positive Output Super Lift Luo Converter (POSLLC) and a single-phase inverter connected to a grid through an RL filter.
Seyed Ali Akbar Fallahzadeh +3 more
doaj +1 more source
iScience, 2023 Summary: The hybrid renewable energy system (HRES) can overcome the problem of the mismatch of supply of variable renewable energies and demand. The optimal sizing of the HRES methodology is implemented by employing the generalized reduced gradient (GRG)
Shebaz A. Memon +2 more
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Real-time Implementation of Sliding Mode Control for Cascaded Doubly Fed Induction Generator in both Islanded and Grid Connected Modes [PDF]
Journal of Electrical and Computer Engineering Innovations, 2020 Background and Objectives: Cascaded doubly fed induction generators (CDFIGs) can directly connected to isolated load or power grid without any brushes which are needed in conventional DFIGs.
H. Zahedi +2 more
doaj +1 more source
An implementation of an enhanced DG primary control equipped with fault detection scheme
International Journal of Sustainable Energy, 2023 This paper proposes an enhanced primary control unit of the distributed generator inside the microgrid when the DG is grid-connected and when operated autonomously.
Qusay Salem +4 more
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Improved Seamless Switching Control Strategy for AC/DC Hybrid Microgrid
IEEE Access, 2021 Aiming at the problems of transient over-current and over-voltage in the switching process of AC/DC hybrid microgrid in grid-connected mode and island mode, which leads to the sudden change of transmission power and seriously affects the power ...
Guishuo Wang, Xiaoli Wang, Xiang Gao
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发电技术, 2020 As a major branch of integrated energy system, micro-grid is widely used in the local consumption of distributed generation. With the introduction of cold, heat and gas, the requirement of micro-grid security control is becoming higher and higher.
Yizong GUO, Chuangxin GUO
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A Comparative Feasibility Study of Stand-Alone and Grid-Connected PV System for Residential Load: A Case Study in Iran [PDF]
E3S Web of Conferences, 2021 With rising the environmental issues regarding the fossil fuels, the renewable energy resources (RES) could be as interesting scheme in supply side for micro grids.
Hadifar Navid, Ayanlou Amirreza
doaj +1 more source