A novel unsymmetrical faults analysis for microgrid distribution systems

Ou, Ting-Chia

doi:10.1016/j.ijepes.2012.05.012

Cited by 131 publications

(82 citation statements)

References 16 publications

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“…This paper focuses on the comparison of steady state voltage control algorithm-based OPF techniques in distribution networks. Wider issues, however, such as hybrid renewable energy sources (HRES) in smart grid, should also be considered [29][30][31][32][33][34][35]. Dynamic operation and fault analysis becomes more important and challenging in distribution networks and microgrids with high penetrations of HRES.…”

Section: Discussionmentioning

confidence: 99%

“…In [31], a modified bird-mating optimization with hill-climb was proposed to solve transformer placement problem considering voltage imbalance. Stability and fault analysis for HRES systems have been explored in [32][33][34]. In [35], a novel intelligent damping controller was developed for STATCOM for improving power quality and damping considering wind farm, battery energy storage and micro-turbine generation.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of Voltage Control Approaches for Future Smart Distribution Networks

Wang¹,

Zangiabadi

et al. 2017

Energies

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Evaluation of Voltage Control Approaches for Future Smart Distribution Networks

Wang¹,

Zangiabadi

et al. 2017

Energies

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“…The developed algorithm possess topological characteristics and can be used to solve a different network type. Ou [45] has also developed a method for hybrid compensation for the microgrid to analyze unsymmetrical faults for the three-phase model. This method is capable of solving different types of single and simultaneous unsymmetrical faults.…”

Section: Sourcementioning

confidence: 99%

Wind–PV-Based Hybrid DC Microgrid (DCMG) Development: An Experimental Investigation and Comparative Economic Analysis

et al. 2018

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Abstract:The cyclical nature and high investment costs of the wind and photovoltaic renewable energy sources are the two critical issues seeking attention for the use of such systems in backup or isolated applications. This paper aims to present the experimental and economic analysis of a wind-photovoltaic-based hybrid direct current microgrid (DCMG) system for backup power and off-grid isolated power generation system for emergency purposes. The two distributed generating units comprising photovoltaic panels and wind generator were designed and developed for the experimental study. A lead-acid battery is also added as an energy storage system to enhance the system supply. The electric load of this system comprise of 42 DC light emitting diode (LED) lamps of 12 Watt each and a 25 Watt DC fan. The charge controller provides the control and protection features for the designed system. The complete system design and fabrication of this system have been undertaken at Mehran University of Engineering & Technology (MUET, Jamshoro, Pakistan). The compatibility of the designed system has been analysed by comparing the Levelized Cost of Energy (LCOE) with a conventional gasoline generator system of the same capacity. The capital, running and lifetime costs of DCMG are found to be 1.29, 0.15 and 0.29 times those of the gasoline generator, respectively. Moreover, it is found that per unit cost of gasoline generator is $0.3 (i.e., PKR 31.4) which is almost 3.4 times higher than that of the hybrid DCMG system. The performance and cost evaluation of the designed system indicate its broad potential to be adopted for commercialisation to meet backup power and off-grid power requirements. This study concludes that proposed DCMG system is a not only low cost, but also a pollution-free alternative option compared to the existing traditional small gasoline generator system.

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“…2016, 6, 218 2 of 12 the power line estimator for dynamic operation as used in solar tracking is the motivation of this research. There are other estimators in the literature such as those used in thermo-electric power generation [17], hybrid power generation systems [18,19], improved hybrid with fault studies [20][21][22], solar tracking [23], and wind operations [24,25]. This proposed estimator is slightly different, as the case where it depends on the load (dynamic) is formulated through a current equation that brings the best fit curve characteristics of the estimator.…”

Section: Power Mapping Of Double-stator Permanent Magnet Generatormentioning

confidence: 99%

A New Maximum Power Point Estimator Control Strategy to Maximize Output Power of the Double Stator Permanent Magnet Generator

et al. 2016

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Abstract:A new control estimator to maximize the power generated with a maximum power point estimator is introduced. The power mapping characteristics from the double-stator generator are modeled as a mathematical equation which is used to develop the estimator for maximum power tracking to maximize the generated power. The proposed estimator automatically traces the instantaneous maximum power at various load conditions. However, to stabilize the output voltage, a boost converter is used from the inverter side. The developed double-stator generator is tested with the new estimator for the maximizing power generation capability under laboratory conditions. The experimental results confirm that with the new estimator, the average power generation capability is increased by 12% and the peak value is increase by 22%.

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A novel unsymmetrical faults analysis for microgrid distribution systems

Cited by 131 publications

References 16 publications

Evaluation of Voltage Control Approaches for Future Smart Distribution Networks

Evaluation of Voltage Control Approaches for Future Smart Distribution Networks

Wind–PV-Based Hybrid DC Microgrid (DCMG) Development: An Experimental Investigation and Comparative Economic Analysis

A New Maximum Power Point Estimator Control Strategy to Maximize Output Power of the Double Stator Permanent Magnet Generator

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