DC Microgrid with integrated photo-voltaics (PV) and battery storage system is a promising technology for future smart grid applications. This paper compares three battery storage technologies namely: lithium-ion (Li-ion), lead-acid, and vanadium redox flow battery (VRFB) in the residential low-voltage dc grids, to increase the penetration of PV to improve self-sufficiency and grid independence. A multi-objective optimisation method is proposed to visualise the trade-offs between four objective functions: cost of electricity, energy autonomy, peak power reduction, and lifetime capital cost. The method is applied to a near-future scenario, based on a real residential feeder. Pareto fronts of the dominant designs are used to compare different battery technologies for this PV-battery integrated dc microgrid application. Additionally, the results provide insight into the dimensioning the battery, the PV, and the front-end ac-dc converter.
|Title of host publication||2019 IEEE Third International Conference on DC Microgrids (ICDCM)|
|Number of pages||9|
|Publication status||Published - 2020|
|Event||ICDCM 2019: THe 3rd IEEE International Conference on DC Microgrids - Matsue, Japan|
Duration: 20 May 2019 → 23 May 2019
Conference number: 3rd
|Period||20/05/19 → 23/05/19|