VRB modeling for storage in stand-alone wind energy systems

The rising demand for high-density power storage systems such as hydrogen, combined with renewable power production systems, has led to the design of optimal power production and storage systems. In this study, a wind and photovoltaic (PV) hybrid electrolyzer system, which maximizes the hydrogen production for a diurnal operation of the system, is designed and simulated. The operation of the system is optimized using imperialist competitive algorithm (ICA). The objective of this optimization is to combine the PV array and wind turbine (WT) in a way that, for minimized average excess power generation, maximum hydrogen would be produced. Actual meteorological data of Miami is used for simulations. A framework of the advanced alkaline electrolyzer with the detailed electrochemical model is used. This optimal system comprises a PV module with a power of 7.9 kW and a WT module with a power of 11 kW. The rate of hydrogen production is 0.0192 mol/s; an average Faraday efficiency of 86.9 percent. The electrolyzer works with 53.7 percent of its nominal power. The availability of the wind for longer periods of time reflects the greater contribution of WT in comparison with PV towards the overall throughput of the system.

show abstract

“…The mechanical power that is reached to the generator of wind turbine is given by (1), as described in [30][31][32][33][34]:…”

Section: Wt Modulementioning

confidence: 99%

Optimal design of hybrid wind/photovoltaic electrolyzer for maximum hydrogen production using imperialist competitive algorithm

Khalilnejad

Sundararajan

2017

J. Mod. Power Syst. Clean Energy

View full text Add to dashboard Cite

show abstract

“…Ref [50] proposes a new VRB model to integrate with stand alone wind energy system while Ref. [51] add VRB to dc-link to enhance LVRT capability and results show a good performance in different conditions.…”

Section: Energy Storage Systems Based Methodsmentioning

confidence: 99%

A review of low-voltage ride-through enhancement methods for permanent magnet synchronous generator based wind turbines

Nasiri

Milimonfared

Fathi

2015

Renewable and Sustainable Energy Reviews

186

134

View full text Add to dashboard Cite

“…However, most of these are based on how to establish an objective function of a VRB for describing the performance characterization of a VRB. In [14][15][16][17][18], an equivalent model of a VRB was comprehensively introduced, to obtain the operational characteristics of a VRB. In [19,20], a comprehensive equivalent circuit model of a VRB was presented for system level analysis, in which the concentration over potential is modeled as a function of flow rate, in an order to determine determine an appropriate variable flow rate.…”

Section: Introductionmentioning

confidence: 99%

Design of a Bidirectional Energy Storage System for a Vanadium Redox Flow Battery in a Microgrid with SOC Estimation

Gong

Lei

2017

Sustainability

View full text Add to dashboard Cite

This paper used a Vanadium Redox flow Battery (VRB) as the storage battery and designed a two-stage topology of a VRB energy storage system in which a phase-shifted full bridge dc-dc converter and three-phase inverter were used, considering the low terminal voltage of the VRB. Following this, a model of the VRB was simplified, according to the operational characteristics of the VRB in this designed topology of a VRB energy storage system (ESS). By using the simplified equivalent model of the VRB, the control parameters of the ESS were designed. For effectively estimating the state of charge (SOC) of the VRB, a traditional method for providing the SOC estimation was simplified, and a simple and effective SOC estimation method was proposed in this paper. Finally, to illustrate the proper design of the VRB ESS and the proposed SOC estimation method, a corresponding simulation was designed by Simulink. The test results have demonstrated that this proposed SOC estimation method is feasible and effective for indicating the SOC of a VRB and the proper design of this VRB ESS is very reasonable for VRB applications.

show abstract

VRB modeling for storage in stand-alone wind energy systems

Cited by 70 publications

References 11 publications

Optimal design of hybrid wind/photovoltaic electrolyzer for maximum hydrogen production using imperialist competitive algorithm

Optimal design of hybrid wind/photovoltaic electrolyzer for maximum hydrogen production using imperialist competitive algorithm

A review of low-voltage ride-through enhancement methods for permanent magnet synchronous generator based wind turbines

Design of a Bidirectional Energy Storage System for a Vanadium Redox Flow Battery in a Microgrid with SOC Estimation

Contact Info

Product

Resources

About