Micro-hydrokinetic river system modelling and analysis as compared to wind system for remote rural electrification

Koko, Sandile Phillip; Kusakana, K.; Vermaak, H.J.

doi:10.1016/j.epsr.2015.04.018

Cited by 37 publications

(14 citation statements)

References 5 publications

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“…The renewable energy from wind‐solar hybrid system is gaining more importance as it has immense potential to address the environmental and energy crisis issues. Electrical connectivity to the remote areas is always a challenging task for developing nations in power crisis, power management, and economical operation . International Energy Agency database 2011 indicates that one fifth of the world populations are deprived from accessing the electrical utility .…”

Section: Introductionmentioning

confidence: 99%

Stand-alone AC-DC microgrid-based wind-solar hybrid generation scheme with autonomous energy exchange topologies suitable for remote rural area power supply

Parida

Chatterjee

2018

Int Trans Electr Energ Syst

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Most of the rural villages throughout the world are isolated from rest of the regions in accessibility to the electricity that considerably affects the sustainable development of this region. Low generation capacity addition, accessibility, and affordability of electrical power in the remote area are the major causes responsible for such situations. This long-standing problem can be addressed through user friendly power supply from renewable power generation system with microgrid topology. In this paper a solar photovoltaic-augmented, cogeneration-based wind power generation scheme has been proposed for remote rural area power supply. This stand-alone hybrid-microgrid-based power generation scheme will provide uninterrupted power to the under privileged village peoples at minimum cost unlike the existing utility supply. Considering, the complementary nature of the available wind and solar power, this paper also presents a coordinated control mechanism that ensures the automatic power exchange facility within the microgrid effectively. The scheme has been simulated by using MATLAB Simulink-2016 simulation tool and practically implemented using a dSPACE CP1104 interfacing device, and the results are found satisfactory. KEYWORDSAC microgrid, DC microgrid, doubly fed induction generator, solar PV, wind power generation | INTRODUCTIONThe renewable energy from wind-solar hybrid system is gaining more importance as it has immense potential to address the environmental and energy crisis issues. Electrical connectivity to the remote areas is always a challenging task for developing nations in power crisis, power management, and economical operation. 1-6 International Energy Agency List of symbols: λ ds , λ qs , components of induction machine stator flux; V ds , V qs , components of induction machine stator voltage; V dr , V qr , components of induction machine rotor voltage; i ds , i qs , components of induction machine stator current; i dr , i qr , components of induction machine rotor current; Lm, Ls, magnetizing and stator self inductance of the induction machine; Lls, Llr, stator and rotor leakage inductances of induction machine; μ, displacement angle between stator voltage and rotor current; r s , stator resistance of induction machine; Ps, Qs, stator active, reactive powers of induction machine; ωe, ωr, velocity of stator flux and rotor speed of induction machine; θr, σs, rotor position and stator leakage factor of induction machine; Kp, Ti, PI controller parameters; P DFIG net , total active power generated from all the doubly fed induction generators.

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Section: Introductionmentioning

confidence: 99%

Stand-alone AC-DC microgrid-based wind-solar hybrid generation scheme with autonomous energy exchange topologies suitable for remote rural area power supply

Parida

Chatterjee

2018

Int Trans Electr Energ Syst

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“…The wind turbine is connected to an SCIG through a gear box to convert mechanical power to electrical power. The relationship between WT torque/ rotor speed and generator torque/rotor speed (T mg /ω mg ) may be expressed as the following equation (Koko et al, 2015;Nasser et al, 2009)…”

Section: Wind Turbine Generatormentioning

confidence: 99%

“…The wind turbine converts the aerodynamic power of wind to the mechanical power. The aerodynamic power of wind can be presented as the following equation (Koko et al, 2015; Mukund, 1999)…”

Section: System Descriptionmentioning

confidence: 99%

Frequency control of a wind turbine generator–flywheel system

et al. 2017

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The aim of this article is to propose an enhanced frequency regulator of a wind turbine generator associated with a flywheel applying an adaptive fuzzy proportional integral control, to supply a stand-alone load at 50 Hz. The flywheel energy storage system is used to balance the produced and consumed powers; it means the flywheel stores energy in case of power excess and delivers it in the opposite case. This power flow control stabilizes more the frequency around the set point. This hybrid renewable energy system is simulated by SIMPOWER in MATLAB Simulink software. Furthermore, performance improvement of the proposed new control is validated by the obtained satisfying results.

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“…However, these areas could be located in close proximity to rivers, with a significant water flow, which would allow leveraging the stream to generate energy. Moreover, this type of technology causes a lower environmental impact, making it attractive for small-scale usage, unlike a conventional electric system [3,4]. The suitable * Correspondence: jlatag@ups.edu.ec utilization of natural resources for a reliable energy supply is a very complex task due to diverse constraints, such as the absence of weather predictability.…”

Section: Introductionmentioning

confidence: 99%

Optimal sizing hydrokinetic-photovoltaic system for electricity generation in a protected wildlife area of Ecuador

Lata‐García¹,

Sánchez-Sainz²,

Reyes-Lopez³

et al. 2018

Turk J Elec Eng & Comp Sci

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Abstract:Rural electrification is one of the most significant issues faced by electricity companies. For this reason, these companies are choosing alternative sources to generate energy in isolated regions. Furthermore, hybrid generation systems are an effective option for supplying protected areas. In this context, this research aims at designing an autonomous hybrid system to meet the annual electricity demand of the inhabitants of a national park. Fluvial and solar energies are the best options to reduce environmental impact and to ensure the conservation of the endemic fauna and flora of the island at a low carbon footprint. The system comprises a series of subsystems modeled using commercial software for sizing and optimization. The main generation subsystem contains a hydrokinetic turbine and photovoltaic panels, the storage subsystem contains a battery bank, and the backup subsystem consists of a diesel generator used in case of lack of energy from the rest of suppliers of the hybrid system. The main results of the simulation show an optimized system that fulfills the energy demand while minimizing the use of the diesel generator to 5668 kWh/year (14.3%) of thorough generation. The hydrokinetic generator supplies 20,330 kWh/year (51.4% of the total generation) and the solar generator supplies 13,580 kWh/year (34.3%).

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Micro-hydrokinetic river system modelling and analysis as compared to wind system for remote rural electrification

Cited by 37 publications

References 5 publications

Stand-alone AC-DC microgrid-based wind-solar hybrid generation scheme with autonomous energy exchange topologies suitable for remote rural area power supply

Stand-alone AC-DC microgrid-based wind-solar hybrid generation scheme with autonomous energy exchange topologies suitable for remote rural area power supply

Frequency control of a wind turbine generator–flywheel system

Optimal sizing hydrokinetic-photovoltaic system for electricity generation in a protected wildlife area of Ecuador

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