Detail publikace

Peak-off-peak load shifting for optimal storage sizing in hybrid power systems using Power Pinch Analysis considering energy losses

Mohammad Rozali, N.E. Ho, W.S. Wan Alwi, S.R. Manan, Z.A. Klemeš, J.J. Mohd Yunus, M.N.S. Syed Mohd Zaki, S.A.A.

Originální název

Peak-off-peak load shifting for optimal storage sizing in hybrid power systems using Power Pinch Analysis considering energy losses

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The difference in electricity pricing based on the time of power use has led to load shifting from peak to off-peak hours in hybrid power systems (HPS). Apart from optimising electricity cost, shifting of the load may also change the capacity of storage in the system. Power Pinch Analysis has been recently applied to guide load shifting aiming to minimise the cost of electricity, considering the peak and off-peak electricity pricing. The HPS was assumed to be ideal with 100% efficiency, which is not achievable in actual operational condition. This work extends the study by scrutinising the effects of peak-off-peak load shifting on the capacity of storage in HPS. The effects of energy losses due to the inefficiency during power conversion, transfer and storage in the HPS are considered in developing shifting heuristics to ensure optimal storage size is achieved. Implementation of the proposed load shifting strategy on a case study demonstrates that a reduction of up to 30% in the storage size can be achieved, which led to a minimum storage cost. The distribution of peak hours’ demand to off-peak hours also successfully provide significant savings in the electricity bill.

Klíčová slova

Energy losses; Hybrid power systems (HPS); Load shifting; Power pinch analysis (PoPA); Renewable energy (RE)

Autoři

Mohammad Rozali, N.E.; Ho, W.S.; Wan Alwi, S.R.; Manan, Z.A.; Klemeš, J.J.; Mohd Yunus, M.N.S.; Syed Mohd Zaki, S.A.A.

Vydáno

1. 8. 2018

Nakladatel

Elsevier Ltd

ISSN

0360-5442

Periodikum

Energy

Ročník

156

Číslo

156

Stát

Spojené království Velké Británie a Severního Irska

Strany od

299

Strany do

310

Strany počet

12

BibTex

@article{BUT151474,
  author="Mohammad Rozali, N.E. and Ho, W.S. and Wan Alwi, S.R. and Manan, Z.A. and Klemeš, J.J. and Mohd Yunus, M.N.S. and Syed Mohd Zaki, S.A.A.",
  title="Peak-off-peak load shifting for optimal storage sizing in hybrid power systems using Power Pinch Analysis considering energy losses",
  journal="Energy",
  year="2018",
  volume="156",
  number="156",
  pages="299--310",
  doi="10.1016/j.energy.2018.05.020",
  issn="0360-5442"
}