Dispatch strategy and model for hybrid photovoltaic and trigeneration power systems

Amir Nosrat and Joshua Pearce

Applied Energy, 2011, vol. 88, issue 9, 3270-3276

Abstract: The advent of small scale combined heat and power (CHP) systems has provided the opportunity for in-house power backup of residential-scale photovoltaic (PV) arrays. These hybrid systems enjoy a symbiotic relationship between components, but have large thermal energy wastes when operated to provide 100% of the electric load. In a novel hybrid system is proposed here of PV-trigeneration. In order to reduce waste from excess heat, an absorption chiller has been proposed to utilize the CHP-produced thermal energy for cooling of PV-CHP system. This complexity has brought forth entirely new levels of system dynamics and interaction that require numerical simulation in order to optimize system design. This paper introduces a dispatch strategy for such a system that accounts for electric, domestic hot water, space heating, and space cooling load categories. The dispatch strategy was simulated for a typical home in Vancouver and the results indicate an improvement in performance of over 50% available when a PV-CHP system also accounts for cooling. The dispatch strategy and simulation are to be used as a foundation for an optimization algorithm of such systems.

Keywords: Photovoltaic; CHP; Combined heating cooling and power; Cogeneration; Trigeneration; Hybrid (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (37)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:88:y:2011:i:9:p:3270-3276

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DOI: 10.1016/j.apenergy.2011.02.044

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