Modeling of vanadium redox battery by field analysis and neural network approach

Abstract

The vanadium redox flow battery is well-suited for renewable energy applications. This paper studies VRB use within a microgrid system from a practical perspective. A reduced order circuit model of the VRB was introduced. Experimental field data are collected to estimate the key parameters of the VRB system. Methods of predicting major parasitic losses are proposed. Loss models include the circulation pumps and the HVAC system that regulates the environment of the VRB enclosure. The HVAC system can draw a significant amount of the VRB power considerably impacting its overall efficiency, but this is usually ignored by other theoretical models.

Voltage Stabilization of Hybrid Micro-Grid Using Super Capacitors

“…VRB's are usually used in the system to due to its capability of providing high energy density, long cycle life of 10,000 cycles (which is 3 times more than that of lithium ion battery), increased operating temperature range and a long time scale of minutes to hours [8]. The complete modeling of the VRB's has been presented in [9] [10]. The capacity of the Iron Phosphate based Lithium Ion Battery Energy Storage System (LIBESS) was same as of VRB's.…”