About this Research Topic
Renewable energy sources such as photovoltaic (PV) and fuel cells, energy storage and modern DC loads are increasingly present in microgrids. AC and DC components are segregated and connected to reduce the number of power conversion stages, thus increasing overall efficiency. Recent studies show that hybrid AC/DC microgrids provide a promising solution to integrate both AC and DC microgrids into existing power grids. Control and optimization of hybrid AC/DC microgrids is becoming a significant challenge with high penetration of renewable energy and energy storage systems. Meanwhile, centralized transparency into all devices, from power generation to loads, enables proactive management of the power system.
While power management and control strategies for traditional AC microgrids have been well understood, power management for hybrid AC/DC microgrids has not been widely studied so far. DC bus voltage control, power balancing within DC bus, AC bus and grid/load, and AC bus voltage and frequency control are the main power management challenges. AC/DC hybrid microgrid can be categorized as AC-coupled, DC-coupled or AC/DC coupled hybrid microgrids. Structures of AC/DC hybrids should be studied. Control of power converters including DC-DC converters, AC-DC converters, interfacing converters and interlinking converters also need to be studied.
Due to uncertainty in load variations, intermittent power generation from renewable energy sources, and more interfacing power electronics, power quality will be an important topic. Utilization of wide bandgap devices in power converters can improve the switching frequency and reduce losses, and thus improve the performance of hybrid AC/DC microgrids.
We welcome submissions on the following topics:
• Power management for hybrid AC/DC microgrid,
• Control of power converters in hybrid AC/DC microgrid,
• Power quality control,
• Interfacing converters and interlinking converters,
• Integration of renewable energy sources and energy storage,
• Maximum power point tracking for PV,
• Wide bandgap devices used in hybrid AC/DC microgrid,
• Communication systems in microgrids.
Keywords: Power Management, Control Strategies, Microgrids, Distributed Power Generation
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