Thesis
The effects of a battery energy storage system on frequency control
Washington State University
Master of Science (MS), Washington State University
2017
Handle:
https://hdl.handle.net/2376/102081
Abstract
With the growing interest and connection of Battery Energy Storage Systems (BESS) to the Bulk Electric Power System, their effects on Automatic Generation Control (AGC) and frequency regulation must be considered. As the presence of Distributed Energy Resources (DERs), such as wind farms and solar farms, increases and the presence of traditional Centralized Energy Resources (CERs), such as fossil-fuel plants and nuclear plants, decreases; the importance of returning the Bulk Electric Power System to its nominal frequency after a change in load or generation becomes more critical. With the removal of traditional CERs with rotating shafts, the Bulk Electric Power System's ability to respond to significant load changes is reduced. Additionally, an increasing system configuration of interest is the microgrid configuration; in which the Bulk Electric Power System can be separated into small systems with DERs supplying the load demand. Of particular interest is the ability of these microgrids to maintain system operating frequency and adequate voltage to serve the load demand when the microgrid is disconnected with the Bulk Electric Power System. In this scenario, the microgrid must have a combination of either CERs or DERs to meet base- and peak- load demand, respectively, or the system must have DERs with some kind of energy storage presence. This thesis analyzed the effects a BESS had when assisting in the regulation of the system frequency of a small system during a 24 hour simulation period with different initial state-of-charge values. The thesis then analyzed and discussed the significance a BESS would have when assisting in the regulation of the system frequency of a larger, Bulk Electric Power system, with an initial state-of-charge of 50%. Finally, the ability of a BESS to maintain adequate system voltage during an Islanded Condition was analyzed. Each case used historical data from a distribution feeder in Pullman, WA to mimic the loading behavior of a real system; the AGC cases used data from a distribution management system while the islanded case used data from a network with an automatic metering infrastructure.
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Details
- Title
- The effects of a battery energy storage system on frequency control
- Creators
- Thomas Joseph Morrell
- Contributors
- Anjan Bose (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Electrical Engineering and Computer Science, School of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; [Pullman, Washington] :
- Identifiers
- 99900525175801842
- Language
- English
- Resource Type
- Thesis