Abstract
Community microgrids are set to change the landscape of future energy markets. The technology is being deployed in many cities around the globe. However, a wide-scale deployment faces three major issues: initial synchronization of microgrids with the utility grids, slip management during its operation, and mitigation of distortions produced by the inverter. This paper proposes a Phasor Measurement Unit (PMU) Assisted Inverter (PAI) that addresses these three issues in a single solution. The proposed PAI continually receives real-time data from a Phasor Measurement Unit installed in the distribution system of a utility company and keeps constructing a real-time reference signal for the inverter. To validate the concept, a unique intelligent DC microgrid architecture that employs the proposed Phasor Measurement Unit (PMU) Assisted Inverter (PAI) is also presented, alongside the cloud-based Artificial Intelligence (AI), which harnesses energy from community shared resources, such as batteries and the community’s rooftop solar resources. The results show that the proposed system produces quality output and is 98.5% efficient.
Highlights
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From the literature review presented above, it is inferred that DC microgrids face three major technical problems, i.e.: (i) Initial synchronization with the utility grid, (ii) Instantaneous slip management during operation, and (iii) Distortions produced by the inverter electronics
Viable wide-scale deployment of community microgrids faces three major technical problems, i.e., initial synchronization with the utility grid, instantaneous slip management during operation, and distortions produced by the inverter electronics
Summary
We provide a literature survey and compares the proposed approach with the approaches discussed in the literature. Community microgrids have emerged as an alternative to address the rising societal demands for electric infrastructures. They are economical and environmentally friendly, and promise a long list of ambitious goals including premium reliability, superior power quality, improved sustainability, and smooth integration of renewable energy [1]. They are typically capable of operating in islanded or grid-connected mode. Though the technology is proven, it faces the following three major technical challenges
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