scholarly journals Modeling, Control and Power Management Strategy of a Grid connected Hybrid Energy System

2018 ◽  
Vol 8 (3) ◽  
pp. 1345 ◽  
Author(s):  
Sujit Kumar Bhuyan ◽  
Prakash Kumar Hota ◽  
Bhagabat Panda
Keyword(s):  
Fuel Cell ◽  
Power Management ◽  
Storage Tank ◽  
Power Flow ◽  
Management Strategies ◽  
Energy System ◽  
Pv System ◽  
Hybrid Energy System ◽  
Hybrid Energy ◽  
Load Demand

This paper presents the detailed modeling of various components of a grid connected hybrid energy system (HES) consisting of a photovoltaic (PV) system, a solid oxide fuel cell (SOFC), an electrolyzer and a hydrogen storage tank with a power flow controller. Also, a valve controlled by the proposed controller decides how much amount of fuel is consumed by fuel cell according to the load demand. In this paper fuel cell is used instead of battery bank because fuel cell is free from pollution. The control and power management strategies are also developed. When the PV power is sufficient then it can fulfill the load demand as well as feeds the extra power to the electrolyzer. By using the electrolyzer, the hydrogen is generated from the water and stored in storage tank and this hydrogen act as a fuel to SOFC. If the availability of the power from the PV system cannot fulfill the load demand, then the fuel cell fulfills the required load demand. The SOFC takes required amount of hydrogen as fuel, which is controlled by the PID controller through a valve. Effectiveness of this technology is verified by the help of computer simulations in MATLAB/SIMULINK environment under various loading conditions and promising results are obtained.

scholarly journals Possibility of Using Fuel Cells for Co-generation of Heat and Power in Venizelio Hospital in Crete, Greece

2022 ◽  
Vol 11 (1) ◽  
pp. 51
Author(s):  
John Vourdoubas
Keyword(s):  
Fuel Cell ◽  
Electricity Generation ◽  
Energy System ◽  
Capital Cost ◽  
Solar Pv ◽  
Pv System ◽  
Hybrid Energy System ◽  
Hybrid Energy ◽  
Solar Pv System ◽  
The Cost

Mitigation of climate change requires the replacement of traditional energy technologies with novel low carbon energy systems. The possibility of using a fuel cell and a hybrid energy system consisted of a fuel cell and solar-PV panel for energy generation in Venizelio hospital located in Crete, Greece has been investigated. The size, the heat and electricity generated, the H2 required and the capital cost of the fuel cell and the solar-PV system covering the energy requirements in the hospital have been estimated. Existing research has indicated that fuel cells using H2 can cover the heat and electricity needs in various buildings. Our results indicated that a fuel cell at 1 397 KW can produce annually 4 895 MWhel and 4 895 MWhth covering all the electricity and heating needs in Venizelio hospital producing excess heat at 2 451 MWhth. The capital cost of the fuel cell has been calculated at 4 191 000 € while the required H2 at 367.5 tons/year. All the energy requirements of the hospital can be also covered with a hybrid energy system consisted of a fuel cell and a solar-PV system. The size of the fuel cell has been estimated at 697.5 KW and the cost at 2 092 500 €. The electricity generation was at 2 444 KWhel and its heat production at 2 444 KWhth. The size of the solar-PV system has been evaluated at 1 629 KWp and the cost at 1 634 000 €.The annual electricity generation was at 2 451 MWhel. The capital cost of the hybrid energy system at 3 726 500 € is lower than the cost of the fuel cell alone at 4 191 000 €. Our results indicated that the use of novel benign energy systems with zero carbon emissions in Venizelio hospital is technically and economically feasible.

Experimental investigation of power management and control of a PV/wind/fuel cell/battery hybrid energy system microgrid

2020 ◽  
Vol 45 (53) ◽  
pp. 29110-29122 ◽  
Author(s):  
Boualam Benlahbib ◽  
Noureddine Bouarroudj ◽  
Saad Mekhilef ◽  
Dahbi Abdeldjalil ◽  
Thameur Abdelkrim ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Fuel Cell ◽  
Power Management ◽  
Energy System ◽  
Hybrid Energy System ◽  
Hybrid Energy ◽  
And Control

scholarly journals Modeling and Simulation of Grid Connected Hybrid Energy System and its Fault Analysis

2018 ◽  
Vol 9 (2) ◽  
pp. 775
Author(s):  
Sujit Kumar Bhuyan ◽  
Prakash Kumar Hota ◽  
Bhagabata Panda
Keyword(s):  
Fuel Cell ◽  
Energy System ◽  
Fault Analysis ◽  
Hybrid Energy System ◽  
Hybrid Energy ◽  
System A ◽  
Supervisory Controller ◽  
Load Demand ◽  
Proposed Model ◽  
Cell Controller

This paper represents a hybrid energy system (HES) consisting of photovoltaic (PV), Solid Oxide Fuel Cell (SOFC), electrolyzer system and a storage tank. In this proposed system a fuel cell controller is used where a PID controller is utilized to control the flow of hydrogen (H<sub>2</sub>) through the valve to the SOFC to fulfill the load requirement. In this model a supervisory controller is used to regulate the whole system according to load requirement. So, when PV power is more than load requirement, then PV power fulfill the required load demand as well as the extra power of PV is utilized to generate the hydrogen (H<sub>2</sub>) by the help of electrolyzer, further this hydrogen is used as a fuel of SOFC. Also in this proposed model different types of faults are considered and verified their effect on the load as well as in distribution network. The computer simulations are done for the purpose technology and verified its effectiveness. Hence the appropriate results are obtained.

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