期刊
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
卷 58, 期 5, 页码 6286-6296出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIA.2022.3178388
关键词
Microgrids; Inverters; Reactive power; Voltage control; Power quality; Power control; Sliding mode control; Grid-interacted inverter battery; power quality; solar photovoltaic (PV) generation
资金
- Department of Science and Technology (DST), Government of India [RP03357, RP03128G, RP03319G, RP03443G]
- Department of Science and Technology (DST), Government of India, under SERB-NSC Fellowship
This article introduces a microgrid system based on multiple parallel photovoltaic inverters, aiming to improve the reliability and accessibility of electricity in remote areas. A self-adaptive control strategy enables seamless transitions between islanded mode and grid-connected mode, with proportional power sharing. The system ensures high-quality performance and continuous power supply.
In this article, multiple parallel photovoltaic (PV) inverters based microgrid is developed to enhance the reliability and accessibility of electricity in remote areas. A self-adaptive control strategy is presented for a microgrid to ensure a seamless transition between the islanded mode (IAM) and grid-connected mode (GCM) of operation with a proportional power sharing. This microgrid consists of two solar PV inverters based on local distributed generation (DG) units. Each PV-inverter unit feeds an active power to support local loads and the power demand of each local load is shared between respective DG units and microgrid. The PV-battery-interfaced main unit with a self-adaptive control strategy in parallel with a PV array supported unit-2 is considered to operate in the IAM and GCM of operation. The control strategy achieves transient free operation during load disturbances, power variation at the PV array side, and off-grid operation. Moreover, the microgrid ensures high-quality performance at the point of common coupling and provides the seamless transition between GCM and IAM to guarantee a continuous power to critical loads. The microgrid simulation and experimental results are presented under various operating conditions, such as load variation, intermittent power generation, and automated mode transition between GCM and IAM.
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