Investigation of protection schemes for high penetration rooftop photovoltaic system

Li, Bin; Wu, Honglin; Gao, Xiaoqi

doi:10.1109/apap.2011.6180579

Cited by 4 publications

(4 citation statements)

References 6 publications

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“…Although the contribution of the fault current from small-scale rooftop PV systems is not high on the protection system, it has been observed that the collective contribution causes significant increases with the increasing PV penetration level [107]. For this reason, a protection scheme based on overcurrent coordination is recommended for high penetration rooftop PV systems, considering fault clearance speeds and the requirement of directional element [108]. Moreover, the fault current contribution that occurs in one circuit affects the fault currents in other circuits following the bus.…”

Section: Impacts On Protection Systemmentioning

confidence: 99%

Rooftop Solar PV Penetration Impacts on Distribution Network and Further Growth Factors—A Comprehensive Review

et al. 2020

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In order to meet the electricity needs of domestic or commercial buildings, solar energy is more attractive than other renewable energy sources in terms of its simplicity of installation, less dependence on the field and its economy. It is possible to extract solar energy from photovoltaic (PV) including rooftop, ground-mounted, and building integrated PV systems. Interest in rooftop PV system applications has increased in recent years due to simple installation and not occupying an external area. However, the negative effects of increased PV penetration on the distribution system are troublesome. The power loss, reverse power flow (RPF), voltage fluctuations, voltage unbalance, are causing voltage quality problems in the power network. On the other hand, variations in system frequency, power factor, and harmonics are affecting the power quality. The excessive PV penetration also the root cause of voltage stability and has an adverse effect on protection system. The aim of this article is to extensively examines the impacts of rooftop PV on distribution network and evaluate possible solution methods in terms of the voltage quality, power quality, system protection and system stability. Moreover, it is to present a comparison of the advantages/disadvantages of the solution methods discussed, and an examination of the solution methods in which artificial intelligence, deep learning and machine learning based optimization and techniques are discussed with common methods.

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Section: Impacts On Protection Systemmentioning

confidence: 99%

Rooftop Solar PV Penetration Impacts on Distribution Network and Further Growth Factors—A Comprehensive Review

et al. 2020

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“…Thus, the objectives of this paper can be summarized as follows: The proposed ANN protection controller is able to locate the fault using a simple training algorithm, a minimum number of layers to minimize the training time and minimum hidden layers. The new approach can increase availability, reliability, and accuracy of the system, and at the same time, rapid the protection system response for the sudden changes in the grid (addition of new parts, temporary modifications, and network reconfiguration due to failures or maintenance). A new protection scheme different from [30] is proposed, and unlike [26], the algorithm is tested for symmetrical and unsymmetrical faults. Moreover, unlike [3, 24, 25], the proposed strategy can also be used for several neutral connections of the HV MV −1 transformer. The use of centralized control (CE) and zone control (ZO) algorithms will be explained, modelled, and adapted by ANN to coordinate the PD setting and localize the faulted line automatically.…”

Section: Research Motivation and Gaolsmentioning

confidence: 99%

“…2. A new protection scheme different from [30] is proposed, and unlike [26], the algorithm is tested for symmetrical and unsymmetrical faults. Moreover, unlike [3,24,25], the proposed strategy can also be used for several neutral connections of the HV MV −1 transformer.…”

Section: Research Motivation and Gaolsmentioning

confidence: 99%

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Overcurrent protection based on ANNs for smart distribution networks with grid‐connected VSIs

Bakkar¹,

Bogarra²,

Córcoles³

et al. 2020

IET Generation Trans & Dist

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Recently, the global concern for protection coordination is growing with the impact of distributed generators connected to medium voltage distribution system. Effective protection strategies need to be developed in order to avoid undesirable tripping when distributed generators based on Voltage Source Inverters are connected to the medium voltage grid. According to Spanish grid code requirements, the inverter controller response in this paper is assessed under grid faults integrating low voltage ride through capabilities. This paper presents a novel use of a communication‐based directional relay system with artificial neural network, an appropriate option for smart grids protection. A protection strategy is proposed using two algorithms. The first algorithm is based on gathering data of all the protective devices in the grid and send it to a centralized controller. The second algorithm is based on a zone controller using the communication between the peer protection devices in the same line. One of the main advantages of the zone controller is that no need to modify the protection devices setting in case of temporary grid reconfigurations. The behaviour of the protection algorithms is validated through both simulations in MATLAB‐Simulink and experimental results.

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Fault Diagnosis of Micro-grid Based on Petri Net

Wu¹,

Yang²,

Ai-ling³

et al. 2013

Lecture Notes in Electrical Engineering

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Investigation of protection schemes for high penetration rooftop photovoltaic system

Cited by 4 publications

References 6 publications

Rooftop Solar PV Penetration Impacts on Distribution Network and Further Growth Factors—A Comprehensive Review

Rooftop Solar PV Penetration Impacts on Distribution Network and Further Growth Factors—A Comprehensive Review

Overcurrent protection based on ANNs for smart distribution networks with grid‐connected VSIs

Fault Diagnosis of Micro-grid Based on Petri Net

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