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One of the main limitations in using high voltage and medium voltage DC grids is the issues related to the current-limiting devices and circuit breakers. These devices should be able to handle large currents in the normal operation condition and block high DC currents in a few microseconds in the case of DC faults. Moreover, they are required to dissipate huge amounts of energy stored in the transmission...
This paper addresses the timely issues of modeling, and defining selection criteria for, a solid-state fault isolation device (FID) intended for use in power electronics-based distribution systems (PEDS). The paper subsequently derives the FID parameters in the PEDS envisioned under a new multi-university Engineering Research Center funded by the US National Science Foundation. When conventional circuit...
This paper focuses on the system modeling aspect of energy storage, power conversion and digital power control involved in non-renewable power systems. Lithium based batteries, the energy storage devices were modeled at different state of charges (SOC) using Electro chemical Impedance Spectroscopy (EIS). EIS based impedance measurements were fitted to a standard electrochemical battery model. The...
This paper addresses the timely issues of modeling of, and defining selection criteria for, a solid state fault isolation device (SSFID) to be used in power electronic based distribution systems. The paper derives the SSFID parameters by mapping the characteristics of a conventional medium-voltage distribution system onto that of the power electronic based Future Renewable Electric Energy Delivery...
Advancements in process technology have resulted in tremendous increase in the number of design rules. This has greatly complicated the task of building design rule clean layouts. While EDA tools aid in layout creation for standard cell based ASICs, the problem remains unsolved for custom, analog and RF circuits. For such circuits, layout designers spend lot of time converting functionally correct...
This paper presents the study on the integration of battery energy storage system (BESS) to STATCOM for smoothing out the intermittent output power of a wind farm. Lead-acid battery type is considered as the energy storage system for availability and comparably simpler management system. Reviewed several modeling approaches indicating their advantages and drawbacks; particularly, appropriate for high...
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