Process integration of hybrid power systems with energy losses considerations

• Published in: Energy (Oxford) Vol. 55; pp. 38 - 45
• Main Authors: Mohammad Rozali, Nor Erniza, Wan Alwi, Sharifah Rafidah, Abdul Manan, Zainuddin, Klemeš, Jiří Jaromír, Hassan, Mohammad Yusri
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Kidlington Elsevier Ltd 15-06-2013; Elsevier
• Subjects: Applied sciences; batteries; case studies; Conversion; Design engineering; Electric power generation; electricity; Energy; Energy losses; Exact sciences and technology; Hybrid power systems (HPS); Hybrid systems; Off-grid; Optimization; Power loss; Power Pinch Analysis (PoPA); Renewable energy; Storage; Storage capacity; Tables (data); Energy losses; Storage; Renewable energy; Power Pinch Analysis (PoPA); Hybrid power systems (HPS); Off-grid; Hybrid system
• ISSN: 0360-5442
• DOI: 10.1016/j.energy.2013.02.053

The application of Process Integration using the Pinch Analysis technique has been recently extended to the design of hybrid power systems to determine the maximum power recovery and the battery storage capacity. The graphical and the numerical Power Pinch Analysis (PoPA) tools provide designers with visualisation tools that are systematic and simple to implement for the optimisation of power systems. However, the power losses incurred in the systems, have so far, not been considered in detail in the previous works. This paper extends the PoPA method by considering the power losses that occur during the power system's conversion, transfer and storage. The effects of the losses on the minimum outsourced electricity targets and the storage capacity are evaluated. The Storage Cascade Table (SCT) of PoPA has been further developed to include the effect of energy losses in the system's design. Application of the developed method on a case study yields the more realistic power targets for off-grid hybrid power systems.
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► Extension of the PoPA technique for the optimal design of hybrid power systems. ► A new numerical tool for power targeting called the Modified Storage Cascade Table. ► Setting the electricity targets by considering various power losses.