Effects of different batteries and dispatch strategies on performance of standalonePV/WT/DG/battery system: A case study

Abstract

The idea of integrated hybrid renewable energy systems (IHRES) is gaining attention for electrification of rural areas where on-grid electricity supply is uneconomical. From this point of view, the technical and economic feasibility analysis is carried out for a standalone IHRES in a remote area of Malnad region in Karnataka, India. Solar and wind energy are the prominent renewable resources available in the selected area for study. In the present study, lithium-ion, lead-acid and zinc-bromide batteries effect on "PV-WT-DG-Battery" system is examined and compared. The control strategies used in the study are "load following (LF)" and "predictive dispatch (PD)." The simulation results reveal that the "cost of energy (COE)" and "net present cost (NPC)" are found to be low in zinc-bromide batterybased system with "PD control strategy." The NPC and COE are found to be $55 262 and $0.35 per kWh for optimal system. Zinc-bromide batteries are best suited for remote electrification with less load demand. The sensitivity analysis shows that there is a minimal effect on the performance of the planned IHRES upon variation in the "inflation rate," "discount rate," and "diesel price."HOMER, integrated hybrid renewable energy system, load following, predictive dispatch, zinc-bromide battery

Case study on demand side management‐based cost optimized battery integrated hybrid renewable energy system for remote rural electrification

“…The detailed discussion of studies conducted in this regard is narrated in our earlier work. 24 The two control strategies considered in the present work, operate depending on the state of charge (SOC) of batteries, operating limits, and forecasted values. The procedural steps involved in the application of control strategies are detailed in Figures 12 and 13, respectively.…”

“…The control logic in the PD strategy, results in relatively reduced NPC and COE compared to LF, CC, and CD strategies. The detailed discussion of studies conducted in this regard is narrated in our earlier work 24 …”

“…The optimal configuration is obtained for the ZB battery‐based system consisting of PV/WT/DG/BATT with PD strategy for operation control. In this case study, DSM technique of energy management is not emphasized 24 . On the similar lines of study in another work involving LA and Li‐ion battery, optimization of integrated HRES configuration consisting of PV/DG is worked out, with LF, CC, CD control strategies.…”

“…In this case study, DSM technique of energy management is not emphasized. 24 On the similar lines of study in another work involving LA and Li-ion battery, optimization of integrated HRES configuration consisting of PV/DG is worked out, with LF, CC, CD control strategies. However, the work does not consider any DSM strategy application.…”

Energy Management System for Smart Grid in the Presence of Energy Storage and Photovoltaic Systems

“…In reference [24,25], the dynamic programming method is used to manage the optimal energy for the microgrid based on the PV battery connected to the grid. The purpose of this method is to minimize the energy received from the grid.…”