Analysis of the harmonic distortion impact of photovoltaic generation in Brazilian residential networks

Torquato, Ricardo; Trindade, Fernanda C. L.; Freitas, Walmir

doi:10.1109/ichqp.2014.6842776

Cited by 22 publications

(18 citation statements)

References 9 publications

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“…Many studies are being carried out globally to investigate the impact of residential rooftop solar PV systems on distribution networks. Previous researchers have evaluated these impacts on voltage rise (Begovic, et al, 2012, Tonkoski, et al, 2012, Ali, et al, 2012, voltage fluctuations, voltage unbalance (Begovic, et al 2012, Chandra, et al 2013 and higher levels of harmonics (Torquato, et al, 2014, Chidurala, et al, 2016.…”

Section: Introductionmentioning

confidence: 99%

Analysis of rooftop solar impacts on distribution networks

2019

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Recently, many countries have focused on generating greener energy. As a result, the number of solar photovoltaic (PV) systems connected to the low voltage network has shown a rapid increase around the world. Many studies are being carried out to analyze the potential impact of high penetration of solar PV on the operation and performance of electricity distribution systems. This study proposes a Monte Carlo based approach to evaluate the impacts of rooftop solar PV on low voltage networks and a case study is presented for a typical unbalanced residential network in Sri Lanka using a three phase, four wire model. The model has been validated by comparing the load flow simulation results with actual measurements and the validated model has been used to investigate the impact of solar PV on distribution networks. The impacts were analyzed using parameters such as voltage unbalances, neutral currents, voltage and thermal limits. Results illustrate that PV penetration is limited under certain penetration levels due to the violation of some of the parameters. Further how phase balancing could be used to minimize high neutral currents and voltage unbalances is also illustrated.

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Section: Introductionmentioning

confidence: 99%

Analysis of rooftop solar impacts on distribution networks

2019

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“…at sunrise and sunset [5][6][7]. Analysis of a residential PV application reveals that critical cases must be considered: the network operating under a light load, the PV system connected at a low short-circuit level point and operating with a leading power factor [6,8]. Observation of the PQ effect on a solar PV connected to an unbalanced distribution system showed that the PV inverter supplied balanced currents into a grid and resulted in voltage fluctuations at the point of common coupling (PCC) [9].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, the use of lighting devices have been changing from incandescent lamps to power electronic base lamps. Variation of power affects the harmonic emission a little when the output is large [8,10,11]. The nonlinear loads generate less harmonic content if the supply voltage is distorted (attenuation effect) [10].…”

Section: Introductionmentioning

confidence: 99%

PQ analysis of a rooftop solar PV: a grid connected PV system pilot project in Indonesia

Suhana¹,

Sinisuka²

2015

WIT Transactions on the Built Environment

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Electrical power quality (PQ) disturbance has become a prominent issue in Indonesia. On a distribution network, it is mainly caused by a nonlinear load. Due to the varying power produced, it is affected by a solar PV system as well. Therefore it is necessary to take a solar photovoltaic (PV) without battery storage into account on evaluating a PQ problem. This paper presents observation results of a rooftop PQ system interconnected to the distribution network which supplies nonlinear loads. In this paper, electrical PQ measurements and harmonic levels of rooftop solar PV integration are presented. The PQ measurements were set up on a distribution network which supplied a nonlinear load individually and whenever a PV system is interconnected with it. As is known, the level of harmonics depend on the performance of a PV system inverter. Since IEEE 1547-2003 standard applies to the measurement results, it is revealed that a PV system inverter is not meeting the standard. To prevent excessive levels of harmonic current injected by a solar PV system, risk mitigations are proposed. The risk mitigations cover redesigning a transaction energy meter, redesigning the interconnection code, and reviewing the standing operation procedure.

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“…Several studies and analysis were carried out by researchers over the PQ issues in MG power network at various conditions. [5] THD analysis was performed through simulation in a typical Photo Voltaic (PV) integrated low voltage distribution network at various conditions. THD voltage and current levels were found high in the following conditions; penetration of PV at higher level, far end feeder, low load, and load operates at leading power factor.…”

Section: Introductionmentioning

confidence: 99%

Power Quality Impacts in a Typical Microgrid

Vinayagam¹,

Aziz²,

Swarna³

et al. 2015

Proceedings of the 2015 International Conference on Sustainable Energy and Environmental Engineering

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Abstract-Microgrid (MG) power system plays an important role to fulfill reliable and secure energy supply to critical loads of communities as well as for communities in remote area. Distributed Generation (DG) sources integrated in a MG provides numerous benefits, at the same time leads to power quality issues in the MG power distribution network. Power Quality (PQ) issue arises due to the integration of an intermittent nature of Renewable Energy (RE) sources with advanced Power Electronics (PE) converter technology. Also, presence of nonlinear and unbalancing loads in MG seems to affect PQ of the energy supply in power distribution network. In this paper, PQ impacts like; power variation, voltage variation, Total Harmonic Distortion (THD), and Unbalance voltage level have been analysed in Low Voltage (LV) distribution network of typical MG power system model. In this study, development of MG model and PQ impact analysis through simulation has been done in PSS-Sincal software environment. Analysis results from the study can be used as a guideline for developing a real and independent MG power system with improved PQ conditions.

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Analysis of the harmonic distortion impact of photovoltaic generation in Brazilian residential networks

Cited by 22 publications

References 9 publications

Analysis of rooftop solar impacts on distribution networks

Analysis of rooftop solar impacts on distribution networks

PQ analysis of a rooftop solar PV: a grid connected PV system pilot project in Indonesia

Power Quality Impacts in a Typical Microgrid

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