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Economic rationalization of energy storage under low load diesel application


Hamilton, J and Negnevitsky, M and Wang, X, Economic rationalization of energy storage under low load diesel application, Energy Procedia, ICEP2016, 14-16 December 2016, Melbourne, Australia, pp. 65-70. ISSN 1876-6102 (2017) [Refereed Conference Paper]

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Copyright 2017 The Authors. Licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)

DOI: doi:10.1016/j.egypro.2017.03.107


Globally diesel generator sets account for the majority of generation into remote and off-grid power systems. While diesel generator sets have proven to be a reliable and accessible technology, their downside involves the expense and environmentally emissions linked to diesel fuel consumption. In response diesel generation alternatives are becoming both available and cost competitive, specifically via the integration of renewable energy technology (RET). Hybrid power systems (HPS), those adopting both diesel and RET are increasingly employed to reduce both cost and environmental emissions. As renewable penetration increases within HPS a potential conflict arises, with diesel generation unable to lower output below minimum load set points. These load set points are predetermined to ensure engine efficiency and preserve engine condition. Under medium to high renewable penetration, diesel load set points compete with renewable generation to produce surplus energy. This surplus energy must be absorbed by the system, and while various ancillary technologies, such as demand management, energy storage and dump loads can perform this role, such technologies add expense and complexity. This paper investigates low load diesel (LLD) as one solution to minimising surplus generation within HPS. HPS modelling is used to explore removal of energy storage systems (ESSís) under LLD application. Model validation, undertaken against both kW and MW scale operational diesel generator data sets is referenced to support the findings of both models. Results show LLD to reduce both system establishment and operational costs for high RET penetration HPS.

Item Details

Item Type:Refereed Conference Paper
Keywords:hybrid power systems, low load diesel, variable speed diesel, remote area power, energy storage systems.
Research Division:Engineering
Research Group:Electrical engineering
Research Field:Electrical energy generation (incl. renewables, excl. photovoltaics)
Objective Division:Energy
Objective Group:Energy storage, distribution and supply
Objective Field:Energy services and utilities
UTAS Author:Hamilton, J (Mr James Hamilton)
UTAS Author:Negnevitsky, M (Professor Michael Negnevitsky)
UTAS Author:Wang, X (Professor Xiaolin Wang)
ID Code:114462
Year Published:2017
Web of Science® Times Cited:6
Deposited By:Engineering
Deposited On:2017-02-15
Last Modified:2019-06-17
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