Comparative evaluation of different power management strategies of a stand-alone PV/Wind/PEMFC hybrid power system

Dursun, Erkan; Kılıç, Osman

doi:10.1016/j.ijepes.2011.08.025

Cited by 265 publications

(117 citation statements)

References 27 publications

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“…Moreover, a number of AC-distributed resources are connected to the microgrid through a multi-stage conversion controller, which lowers the system efficiency to some extent [11][12][13][14][15]. As an alternative to an AC microgrid, a direct current (DC) distribution microgrid has several attractive features and is developed in [16,17].…”

Section: Introductionmentioning

confidence: 99%

A Coordinated Control for Photovoltaic Generators and Energy Storages in Low-Voltage AC/DC Hybrid Microgrids under Islanded Mode

et al. 2016

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Abstract:The increasing penetration of renewable generators can be a significant challenge due to the fluctuation of their power generation. Energy storage (ES) units are one solution to improve power supply quality and guarantee system stability. In this paper, a hybrid microgrid is built based on photovoltaic (PV) generator and ES; and coordinated control is proposed and developed to achieve power management in a decentralized manner. This control scheme contains three different droop strategies according to characteristics of PV and ES. First, the modified droop control is proposed for PV, which can take full utilization of renewable energy and avoid regulating output active power frequently. Second, to maintain the direct current (DC) bus voltage stability, a novel droop control incorporating a constant power band is presented for DC-side ES. Third, a cascade droop control is designed for alternating current (AC)-side ES. Thus, the ES lifetime is prolonged. Moreover, interlinking converters (ICs) provide a bridge between AC/DC buses in a hybrid microgrid. The power control of IC is enabled when the AC-or DC-side suffer from active power demand shortage. In particular, if the AC microgrid does not satisfy the reactive power demand, IC then acts as a static synchronous compensator (STATCOM). The effectiveness of the proposed strategies is verified by simulations.

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Section: Introductionmentioning

confidence: 99%

A Coordinated Control for Photovoltaic Generators and Energy Storages in Low-Voltage AC/DC Hybrid Microgrids under Islanded Mode

et al. 2016

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“…Conventional control methods [16,[18][19][20][21] may evolve into complex and advanced control methods through an intelligent controller [4,22,23]. A previous control method employed analog circuitry [24] by using a power controller consisting of a switching regulator (LTC 1435IS) and a current sensor (LTC 1621IGN).…”

Section: Introductionmentioning

confidence: 99%

“…However, climate and geographical conditions tend to cause power fluctuations in the system [20] and therefore some studies propose using a diesel generator as a backup for these hybrid power systems [4,21,28,29]. The idea has proven unsuitable for providing cleaner power generation systems, however [9].…”

Section: Introductionmentioning

confidence: 99%

A conceptual implementation of a buck converter for an off-grid hybrid system consisting of solar and wind turbine sources

Rahman¹,

Razak²,

Hassan³

2016

Turk J Elec Eng & Comp Sci

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Abstract:A hybrid renewable power generation system is proposed through parallel connection between two potential energy resources: photovoltaic (PV) and wind turbines. The method consists of incorporating a buck converter connected by a wind turbine to provide adjustment according to PV potential. Unlike the conventional buck-boost converter topology that is normally used, this research tries to emphasize the use of a buck converter as part of the system configuration. Design schemes were carefully performed and the postdesign system was tested through system simulation with MATLAB/Simulink software. The simulated system offers promising and significant results, thus making it suitable for hardware implementation.

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“…The word 'regenerative' is used for these hydrogen systems due to the fact that the produced hydrogen via an electrolyzer system during excess power conditions (the charging process) can then be reused by the FC system during insufficient power production periods (the discharging process). Interest in the use of such a regenerative hydrogen system has recently increased in the literature and several authors have presented papers related to this issue from different points of view [4][5][6][7][8][9]. Moreover, as FC systems have slow operating dynamics caused by the natural response characteristics of the FC systems together with bulky necessary auxiliary units, a relatively small-sized battery bank is also inserted in the hybrid structure to compensate for the mentioned slow dynamics of the FC.…”

Section: Introductionmentioning

confidence: 99%

Role of Energy Management in Hybrid Renewable Energy Systems: Case Study Based Analysis Considering Varying Seasonal Conditions

Yumurtacı¹

2013

Turk J Elec Eng & Comp Sci

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Abstract:The recent popularity of alternative energy technologies is mainly promoted by the increasing awareness of environmental concerns as well as the economic impacts of the depleting fossil fuel reserves. Among several alternative technologies, wind-and solar-based energy have been given specific importance with government-based support for providing a cost-effective structure to realize better penetration of such environmentally friendly sources in the energy market. Even these sources are advantageous over the conventional means of energy production from many aspects, a main drawback being the total dependence on the meteorological conditions (wind speed, solar radiation, temperature, etc.) of the wind and solar systems, as they are not fully reliable to satisfy a particular load demand variation at each instant. Thus, some form of backup is always required that will shift the use of the energy from the moments of renewable-based nondispatchable production to the load demand-based dispatchable production. In this study, to ensure the supply of the load in all of the cases, an electrolyzer-fuel cell-based 'hydrogen regenerative' system is applied as main backup, together with a small-sized battery group to pick up transients. Thus, a hybrid structure including wind, solar, and hydrogen energy technologies is provided. The artificial neural network controller approach is selected for the hybrid system's energy management and its performance is examined and evaluated during different case studies that reflect the variations of the meteorological conditions in different seasons. It is aimed with this study to provide constructive suggestions to upcoming researchers interested in the energy management issue in hybrid systems.

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Comparative evaluation of different power management strategies of a stand-alone PV/Wind/PEMFC hybrid power system

Cited by 265 publications

References 27 publications

A Coordinated Control for Photovoltaic Generators and Energy Storages in Low-Voltage AC/DC Hybrid Microgrids under Islanded Mode

A Coordinated Control for Photovoltaic Generators and Energy Storages in Low-Voltage AC/DC Hybrid Microgrids under Islanded Mode

A conceptual implementation of a buck converter for an off-grid hybrid system consisting of solar and wind turbine sources

Role of Energy Management in Hybrid Renewable Energy Systems: Case Study Based Analysis Considering Varying Seasonal Conditions

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