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This paper presents the establishment and operation control strategy of a DC microgrid incorporated with bidirectional inductive power transfer (BIPT) system for Electric Vehicles (EVs) charging applications. The primary side of IPT system is powered by a DC microgrid which is established from PV as renewable energy source and battery for energy storage. The proposed concept minimizes power electronic...
Buildings are important places and parts in the society. The conventional power supply of a building is AC power from the utility grid. As the growing penetration of renewable energy source and DC loads, it becomes practical and common for a building supplied by the distributed generators with DC power. Considering this unprecedented transition from the conventional AC building to the hybrid AC/DC...
The second-order sliding-mode controller based on improved sub-optimal algorithm for synchronous Buck converte r is designed, and the converter can be controlled only by detecti ng the output voltage without measuring the capacitance current of the converter. By introducing hysteresis to sub-optimal algorit hm, the switching frequency of the converter is limited when the output voltage is stable....
As the penetration of renewable energy increasing in power systems, the contribution of VSC-HVDC for system stability is highly expected. Due to the decoupling modulating of active and reactive power output, the influence of HVDC on the inter-area oscillation is widely studied. This paper proposes a new ANN (Artificial Neural Network) based control design scheme for VSC-HVDC systems to damp inter-area...
This paper presents the implementation of a hardware-in-the-loop simulation (HIL) workbench for hybrid AC/DC micro grid. The hybrid AC/DC micro grid integrates both distributed sources and loads in AC/DC systems to respective links directly. For DC system, photovoltaic arrays with boost converter (PVBC), battery with bi-directional DC/DC converter and DC loads are covered. Diesel generator (DGs) and...
This paper presents a coordination secondary control strategy for autonomous hybrid AC/DC microgrids with global power sharing operation. In the previous work, primary control with droop control method was applied to distributed generators to ensure local power sharing without communication links in either ac or dc microgrid. An extension of local power sharing for individual microgrid is the global...
Since there are many convertors, invertors, bidirection convertors, sensors and meters in the AC&DC smart micro-grid system, how to collect the real-time data from these devices and send the control command to them to carry out the remote optimization control in high-efficiency is the main problem the smart micro-grid communication system need to face and solve. In this paper, a 3-layer communication...
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