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A Fixed-Flexible BESS Allocation Scheme for Transmission Networks Considering Uncertainties | | Malhar Padhee
; Anamitra Pal
; Chetan Mishra
; Katelynn A. Vance
; | | Date: |
18 May 2019 | | Abstract: | Battery energy storage systems (BESSs) can play a key role in mitigating the
intermittency and uncertainty associated with adding large amounts of wind
energy to the bulk power system (BPS). Lithium-ion (LI) BESSs are the industry
standard in this regard because of their very high efficiency, high energy
density, and faster response time. However, they possess relatively lower
lifetimes, and low discharge durations. Vanadium redox flow (VRF) BESSs, an
upcoming technology, can be completely discharged with minimal battery damage,
and have very long lifecycles. However, the higher initial investment costs and
complicated modeling of VRF BESSs are impediments to their widespread use. This
paper first quantifies the uncertainty associated with wind energy and system
load in the BPS using mixture models. Next, a fixed-flexible BESS allocation
scheme is proposed that exploits the complementary benefits of LI and VRF BESSs
to attain optimal techno-economic benefits. Studies carried out on relatively
large transmission networks demonstrate that benefits such as reduction in
system operation cost, wind spillage, voltage fluctuations, and discounted
payback period, can be realized by using the proposed scheme. | | Source: | arXiv, 1905.7536 | | Services: | Forum | Review | PDF | Favorites | |
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