4.8 Article

Dedicated Microgrid Planning and Operation Approach for Distribution Network Support With Pumped-Hydro Storage

期刊

IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
卷 19, 期 7, 页码 8229-8241

出版社

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TII.2022.3216299

关键词

Dedicated microgrid; distribution network (DN); levelized cost of energy; power purchase agreement; pumped-hydro storage (PHS)

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This article presents a dedicated microgrid planning and operation approach that considers pumped-hydro storage (PHS) to support distribution network (DN). The approach allows dedicated microgrids to solely serve the distribution system, reducing the overall operation cost and increasing revenue. By incorporating a short-term operation capacity index, power purchase agreement, and levelized energy cost, the microgrid's sensitivity to operation penalty is minimized, enabling it to maximize profit.
This article presents a dedicated microgrid planning and operation approach for distribution network (DN) support considering pumped-hydro storage (PHS). The term dedicated connotes the service responsibility of the microgrid rather than its operational independence. A nondedicated microgrid has a dual responsibility to serve the distribution system and commercial/industrial consumers. The payback period and lifetime benefit of a nondedicated microgrid partly rely on the time-of-use pricing mechanism, which drives the microgrid to maximize profit, and could compromise the overall operation of the DN. This article develops an approach for engaging dedicated microgrids having full obligation to serve the distribution system only. For effectively managing the operation of the microgrid without jeopardizing the operation of the DN, the approach considers a novel short-term operation capacity index, power purchase agreement, and levelized energy cost. Specific functionalities of PHSs are used to relax the microgrids sensitivity to operation penalty arising from output power deviation, and thus allowing the microgrid to increase profits. The results obtained showed mutual benefits for the system operator and microgrid owner since the DN operation cost was reduced and the microgrid owner increased its revenue.

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