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Power Pinch Analysis supply side management: strategy on purchasing and selling of electricity

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Abstract

Pinch analysis concept has been recently stepped into the realm of design and optimisation of power systems. One well-established pinch analysis that has been used in power systems design and optimisation is called Power Pinch Analysis (PoPA). In PoPA, both graphical and numerical approaches have provided an insight on the systematic approach to target and design various power systems. By only visualising the minimum amount of outsource energy required by the power system, the graphical PoPA method as a whole does not show the purchasing of outsource energy based on the exact time intervals. Using graphical PoPA, the objective of this study is to determine a proper strategy to buy and sell outsource electricity to improve the overall performance of a hybrid power system comprising renewable power generators and energy storage system. The strategies are made based on three design parameters: energy-related capacity, power-related capacity of energy storage and maximum grid power rating between centralised grid and hybrid power system. While deciding on the best strategy and heuristics to be implemented, the effects on system operation and economy are indirectly analysed. It is experimented that the output can benefit electricity consumers or producers.

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Abbreviations

AC:

Alternating current

AEEND:

Available excess electricity for next day

AF:

Amortised factor

CPCC:

Continuous power composite curve

DC:

Direct current

DCC:

Demand composite curve

EG:

Total grid energy (purchased/sold)

ERC:

Energy-related capacity

ES:

Energy storage

ESCA:

Electric system cascade analysis

FiT:

Feed-in tariff

GCC:

Grand composite curve

GPR:

Maximum grid power rating

HPS:

Hybrid power system

MOES:

Minimum outsourced electricity supply

O&M:

Operating and maintenance

PA:

Pinch analysis

PCC:

Power composite curve

PCT:

Power Cascade Table

PoPA:

Power Pinch Analysis

PP:

Power pinch point

PRC:

Power-related capacity

RE:

Renewable energy

SAHPPA:

Stand-alone hybrid system power pinch analysis

SCC:

Source composite curve

SCT:

Storage Cascade Table

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Authors and Affiliations

  1. Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia (UTM), 81310, Johor Bahru, Johor, Malaysia

    Wen Hui Liu, Kabilen Kaliappan, Sharifah Rafidah Wan Alwi, Jeng Shiun Lim & Wai Shin Ho

  2. Process Systems Engineering Centre (PROSPECT), Research Institute of Sustainable Environment (RISE), Universiti Teknologi Malaysia (UTM), 81310, Johor Bahru, Johor, Malaysia

    Wen Hui Liu, Kabilen Kaliappan, Sharifah Rafidah Wan Alwi, Jeng Shiun Lim & Wai Shin Ho

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  1. Wen Hui Liu
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  2. Kabilen Kaliappan
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  3. Sharifah Rafidah Wan Alwi
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  4. Jeng Shiun Lim
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  5. Wai Shin Ho
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Correspondence to Wai Shin Ho.

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Liu, W.H., Kaliappan, K., Alwi, S.R.W. et al. Power Pinch Analysis supply side management: strategy on purchasing and selling of electricity. Clean Techn Environ Policy 18, 2401–2418 (2016). https://doi.org/10.1007/s10098-016-1213-0

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  • DOI: https://doi.org/10.1007/s10098-016-1213-0

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