Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Investigation of transient energy storage sources for support of future electrical power systems
AU - Hu, Yiheng
AU - Schofield, Nigel
AU - Shobayo, Laolu Obafemi
AU - Zhao, Nan
PY - 2020/6/8
Y1 - 2020/6/8
N2 - The connection of renewable energy sources to local low-voltage networks is becoming more accepted as electrical power networks progress to higher renewable penetration. Renewable energy resources, for example, wind and solar are highly dynamic and intermittent compared with more traditional generation sources, which imposes increasing challenges to the electrical network operator in terms of effectively managing the resource to maximise energy transfer and maintaining system stability. Therefore, transient energy storage systems (TESSs), for example, electrochemical batteries with fast charging/ discharging capabilities are suitable candidates to improve the availability and reliability of connected renewable systems. In this study, two potential TESS technologies are presented, the lithium-ion (Li-ion) and sodium–nickel chloride (NaNiCl 2) battery, and their feasibility to improve power systems in terms of power delivery and frequency fluctuations are compared. Experimentally validated battery models are presented and used to investigate the TESS performance in terms of state-of-charge, terminal voltage variation, peak current, power, energy and efficiency. The models and general design procedure may be applied to systems of different ratings and duty variations.
AB - The connection of renewable energy sources to local low-voltage networks is becoming more accepted as electrical power networks progress to higher renewable penetration. Renewable energy resources, for example, wind and solar are highly dynamic and intermittent compared with more traditional generation sources, which imposes increasing challenges to the electrical network operator in terms of effectively managing the resource to maximise energy transfer and maintaining system stability. Therefore, transient energy storage systems (TESSs), for example, electrochemical batteries with fast charging/ discharging capabilities are suitable candidates to improve the availability and reliability of connected renewable systems. In this study, two potential TESS technologies are presented, the lithium-ion (Li-ion) and sodium–nickel chloride (NaNiCl 2) battery, and their feasibility to improve power systems in terms of power delivery and frequency fluctuations are compared. Experimentally validated battery models are presented and used to investigate the TESS performance in terms of state-of-charge, terminal voltage variation, peak current, power, energy and efficiency. The models and general design procedure may be applied to systems of different ratings and duty variations.
U2 - https://doi.org/10.1049/iet-rpg.2019.0666
DO - https://doi.org/10.1049/iet-rpg.2019.0666
M3 - Journal article
VL - 14
SP - 1296
EP - 1303
JO - IET Renewable Power Generation
JF - IET Renewable Power Generation
SN - 1752-1424
IS - 8
ER -