Battery Energy Storage for Stand-Alone Micro-Source Distributed Generation Systems

M.S. Illindala and G. Venkataramanan (USA)


Distributed generation, Micro-source, Energy storage, Lead-acid battery.


Micro-source distributed generation involves application of small electrical generation sources at the load centers for providing electrical energy conveniently. It can also improve the reliability of power supply to sensitive loads by connecting alongside their main grid supply. It is considered as a viable solution to support power quality sensitive loads such as critical computing and data processing electronic equipment. This is made possible by incorporating energy storage into the system. This paper presents the energy storage needs in a distributed generation system and investigates use of lead-acid batteries to meet these demands. Batteries with a good charge acceptance and low internal resistance are suitable for this purpose. A procedure for sizing the battery, along with a case study, is presented.

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