MODELING AND CONTROL OF A MICROGRID USING A HYBRID ENERGY STORAGE SYSTEM WITH SUPERCAPACITORS
Ross, Michael J. Jr.
MetadataShow full item record
Lead-acid batteries have traditionally been used for energy storage in microgrid applications. Implementing an Energy Management System (EMS)-controlled supercapacitor (SC) and lead-acid battery hybrid energy storage system (HESS) has been shown to reduce operational costs by extending battery lifetimes. The SCs can be controlled to provide the high-frequency, power-dense component of the load power, which reduces the daily cyclical stress and state-of-charge (SOC) depletion of the lead-acid batteries; however, the HESS must be appropriately sized based on cost constraints, available power sources, and load demand. The enabling theory and design of a SIMULINK model of a DC microgrid are discussed in this thesis. The results obtained from this model illustrate the energy exchange between microgrid components, demonstrate some of the potential benefits of implementing a HESS, and provide useful data for battery and SC sizing. The DC microgrid model is scalable and can use any user-defined combination of source and load profiles. In islanded mode, the lead-acid battery and SC banks need to be unrealistically large to provide adequate power to the load. In grid-connected mode, the HESS sizing requirements are significantly reduced, and the overall energy savings of the system are improved.
Approved for public release. distribution is unlimited
Showing items related by title, author, creator and subject.
Removal of direct current link harmonic ripple in single-phase voltage source inverter systems using supercapacitors Hernandez, Gabriel D. (Monterey, California: Naval Postgraduate School, 2016-09);For an Energy Management System (EMS)-controlled microgrid that uses a single-phase voltage source inverter (VSI) configuration to supply power for AC loads from DC energy storage devices, the DC link connecting the VSI ...
Garcia, Kevin E. (Monterey, California: Naval Postgraduate School, 2017-12);Energy savings both on the battlefield and at home are a high priority for the U.S. military. We present two mixed integer linear programs developed for a microgrid providing electrical power to a remote U.S. contingency ...
Anglani, Norma; Oriti, Giovanna; Colombini, Michele (IEEE, 2016);This paper presents an optimized energy managment system (OEMS) to control the microgrid of a remote temporary military base featuring the diesel generators, the battery energy storage system (BESS) and photovoltaic panels ...