Integration and Power Electronic Regulation of Distributed Energy Storage in Next Generation Naval P
Abstract
This proposal aims to study challenges the Navy will face as it integrates and actively regulates distributed energy storage in next,-generation shipboard power system (SPS) architectures. The proposed effort encompasses overlapping technology areas of critical int,erest to the Navy and future Joint Force, including power systems engineering, energy storage, power generation, pulsed power, direc,ted energy, and controls. Since 2010, the University of Texas at Arlingtons (UTA) Pulsed Power and Energy Laboratory (PPEL) has wor,ked with the ONR, and other DoD sponsors, to study energy storage and its use in buffering non-stiff power generation sources while,supplying transient loads. The PPEL has unique hardware and testbed capabilities to support the design and validation of these criti,cal technologies at the component(s) and system(s) levels, respectively. A promising SPS architecture that warrants further study wi,ll employ an integrated Power and Energy Power Distribution System (PEPDS) consisting of one or more Integrated Power and Energy Cor,ridors (IPECs) and associated loads and sources. Successful integration and control of distributed power generation sources and IPEC,s containing distributed energy storage, power electronic converters, and lower-level protection and control systems within a PEPDS,is necessary to ensure power quality and reliability is maintained at sea. In 2018, the PPEL used both DURIP and ONR program funds t,o install, commission, and utilize a ~500 kW testbed designed to emulate one zone of a SPS. The testbed is primarily sourced by a 15,0 kW, 480 VAC electric motor-generator set and a ~250 kW, nominal 900 VDC lithium-ion battery. Commercially procured power electroni,c converters are used to create 4160 VAC, 1 kVDC, 12 kVDC, and 6 kVDC bus nodes and multiple load banks are used to emulate traditio,nal and emerging transiently operated shipboard loads. The testbed is autonomously controlled with growing capability each day. Usin,g advanced semiconductor technology, the Navy and its partners are developing new integrated Power Electronic Building Block (iPEBB), architectures that will forever change a sailors ability to have flexible control of their integrated PEPDS. The concept of soldie,r carriable iPEBBs that can distribute both AC and DC power is becoming a reality and have already shown potential in the laboratory,. These capabilities enable distributed energy storage to be installed throughout a ship that can be shared across loads and even ac,ross zones operating at different types, voltages, and power levels. It is proposed that the PPEL assist the Navy by studying optima,l energy storage configurations within IPECs, low voltage DC (< 1 kVDC) interface standards, and the integration/control of iPEBBs t,o source both traditional and emerging transient load profiles. At the end of the three-year effort, the Navy will have new solution,s and methodologies for assembling IPECs and introducing them into an integrated PEPDS. Multiple students who are US Citizens will b,e prepared to work for the Navy, advancing the state of these technologies.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- May 16, 2022
- Source ID
- N000142212062
Entities
People
- David A. Wetz
Organizations
- Office of Naval Research
- United States Navy
- University of Texas at Arlington