Energy management and control strategy for a DFIG wind turbine/fuel cell hybrid system with super capacitor storage system

Energy ◽  
2020 ◽  
Vol 192 ◽  
pp. 116518 ◽  
Author(s):  
Ameni Kadri ◽  
Hajer Marzougui ◽  
Abdelkrim Aouiti ◽  
Faouzi Bacha
Keyword(s):  
Fuel Cell ◽  
Wind Turbine ◽  
Energy Management ◽  
Hybrid System ◽  
Control Strategy ◽  
Cell Hybrid ◽  
Storage System ◽  
Super Capacitor ◽  
Capacitor Storage ◽  
And Control

Control Strategy of the Hybrid Energy Storage System for Leveling Off Fluctuating Power Output of Stand-Alone Photovoltaic System

2013 ◽  
Vol 860-863 ◽  
pp. 608-612
Author(s):  
Hai Bo Wang ◽  
Xiu Yang ◽  
Jun Liu ◽  
Jie Chen
Keyword(s):  
Energy Management ◽  
Control Strategy ◽  
Storage System ◽  
Energy Storage System ◽  
Photovoltaic System ◽  
Super Capacitor ◽  
Hybrid Energy ◽  
Hybrid Energy Storage ◽  
Hybrid Energy Storage System ◽  
And Control

Hybrid energy storage system (HESS) including battery and super-capacitor can take advantages of both high energy density and high power density. In the stand-alone PV micro-grid, in which two buck/boost bidirectional converters are connected to the DC bus directly, a novel energy management scheme is proposed. After filtering the fluctuating power of the HESS, charge and discharge currents of the battery are controlled by hysteresis control method, the super-capacitor supplies the difference of the power. To leveling off the fluctuating power output of photovoltaic system and control the voltage of the DC bus, a new control strategy applied to the bidirectional converter of the super capacitor is put forward. The feed-forward loops of input voltage, load current and output voltage are introduced to improve the response speed and stability of the system. Results of the simulation show the effectiveness of the proposed energy management and control strategy.

Control and energy management of hybrid system based on a fuel cell/photovoltaic/super capacitor using an AC-link inverter connected to the grid

2020 ◽  
pp. 095965182093269
Author(s):  
Abdelkarim Aouiti ◽  
Hajer Marzougui ◽  
Ameni Kadri ◽  
Faouzi Bacha
Keyword(s):  
Fuel Cell ◽  
Power System ◽  
Energy Management ◽  
Hybrid System ◽  
Control Strategy ◽  
Photovoltaic System ◽  
Super Capacitor ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Management Algorithm

This article deals with the power flow control in a hybrid power system, which is composed of a fuel cell, photovoltaic system and a super capacitor. The super capacitor has been employed with an aim to ameliorate the performance of the hybrid power system. In addition, it takes into account the energy fluctuations of photovoltaic energy sources and the slow dynamic of the fuel cell. Each source is connected to a DC/DC converter and their outputs are connected to a common DC-link and they supply a DC load. Furthermore, an energy management algorithm has been carried out in order to commonly share the power between the sources and the load. The proposed energy management method shows its flexibility, and an efficient energy conditioning between different sources is guaranteed in case of multi-source system. The main originality of this work lies in the use of AC-link partial resonant DC–AC converter topology to interface hybrid system and to inject the excess of energy to the grid. In this article, the system description, the control and the modeling of DC/DC converters and the AC-link converter are provided. Finally, simulations under Matlab/Simulink are shown in order to validate the effectiveness of the proposed control strategy and the energy management algorithm. An implementation on real-time using dSpace 1104 is presented to illustrate the feasibility of the proposed control strategy.

The control strategy for a molten carbonate fuel cell hybrid system

2010 ◽  
Vol 35 (7) ◽  
pp. 2997-3000 ◽  
Author(s):  
Jarosław Milewski ◽  
Tomasz Świercz ◽  
Krzysztof Badyda ◽  
Andrzej Miller ◽  
Antoni Dmowski ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Hybrid System ◽  
Control Strategy ◽  
Cell Hybrid ◽  
Molten Carbonate Fuel Cell ◽  
Molten Carbonate ◽  
Carbonate Fuel Cell ◽  
Fuel Cell Hybrid

scholarly journals Triple-layer based control strategy for molten carbonate fuel cell – hybrid system

2012 ◽  
Vol 33 (3) ◽  
pp. 445-461 ◽  
Author(s):  
Jarosław Milewski ◽  
Andrzej Miller
Keyword(s):  
Fuel Cell ◽  
Hybrid System ◽  
Control Strategy ◽  
Cell Hybrid ◽  
Molten Carbonate Fuel Cell ◽  
Maximum Efficiency ◽  
Molten Carbonate ◽  
Independent Parameters ◽  
Carbonate Fuel Cell ◽  
Fuel Cell Hybrid

Abstract Based on mathematical modelling and numerical simulations, a control strategy for a Molten Carbonate Fuel Cell Hybrid System (MCFC-HS) is presented. Adequate maps of performances with three independent parameters are shown. The independent parameters are as follows: stack current, fuel mass flow and compressor outlet pressure. Those parameters can be controlled by external load, fuel valve and turbine-compressor shaft speed, respectively. The control system is purposed to meet many constraints: e.g. stack temperature, steam-to-carbon ratio, compressor surge limitation, etc. The aim is to achieve maximum efficiency of power generated within these constraints. Governing equations of MCFC-HS modelling are given. An operational line of the MCFC-GT system is presented which fulfils several constraints (temperature difference, cell temperature, etc.) The system is able to achieve efficiency of more than 62% even in part-load operation.

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