Analysing Renewable Energy Source Impacts on Power System National Network Code

Balaban, Georgiana; Lazaroiu, George Cristian; Dumbrava, Virgil; Sima, Catalina Alexandra

doi:10.3390/inventions2030023

Cited by 19 publications

(4 citation statements)

References 13 publications

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“…It has been reported severally in literature [31], [32], [23], [33], that increasing levels of DG penetration have caused problems such as voltage instabilities, loss of frequency stability, and reduction of ride-through capacity in systems. These are attributable to the reduced mechanical inertia of the generation sources in the system.…”

Section: Literature Reviewmentioning

confidence: 99%

The Internet of Things Based Healthcare (HIoT): Networks, Technologies, Applications, and Challenges

Khiadani

2022

mjtd

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As the proportion of total generation by renewable sources compared to non-renewable sources increases, the relative inertial stability provided by large rotating generators in electricity grids is found to shrink and is not being replaced by sources such as photovoltaic and wind power, which are already known for their inherent variability. This leads to electricity generation systems being less stable, less flexible, and less adequate in applications with a high diversity factor, and literature shows that the penetration of renewable energy sources in distribution-generation/microgrid system frequently presents several technical and economic challenges in their usual applications. This work examines how increased renewable energy penetration impacts the distribution-generation system and suggests approaches and measures for tackling the challenges that are associated with it.

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Section: Literature Reviewmentioning

confidence: 99%

The Internet of Things Based Healthcare (HIoT): Networks, Technologies, Applications, and Challenges

Khiadani

2022

mjtd

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“…The approach has been tested in the IEEE-30 bus test system. Balaban et al analyzed [28] the operation of an area of the Romanian power system, characterized by a high density of wind farms, which included the voltage levels, overloading of power system elements, and the transient stability conditions of classic and wind power plants.…”

Section: Related Literaturementioning

confidence: 99%

A New SQP Methodology for Coordinated Transformer Tap Control Optimization in Electric Networks Integrating Wind Farms

et al. 2022

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The real-time control of optimal power flow (OPF) in electric networks represents, in the last period, a challenge for the Distribution Network Operators (DNOs) and Transmission System Operators (TSOs) under the conditions of large-scale integration of renewable energy sources. The paper focused on the voltage management in the electric networks with wind farms connected, proposing a fast Successive Quadratic Programming (SQP)-based centralized control (CC) methodology of the on-load tap changers (OLTC) corresponding to the transformers from the electric substations, which can be included in the Optimal Power Flow (OPF) module of the Supervisory Control and Data Acquisition (SCADA) Master System. The SQP-CC aims to ensure an optimal voltage level inside a variation range, as narrow as possible, which leads to minimize power losses in the electric networks. Treating the OPF problem as an SQP problem and accelerating convergence using the conjugate reduced gradient method led to very few iterations and a fast computational time, recommending the implementation of the methodology for real-time work. The effectiveness of the SQP-CC was demonstrated in a test network having two voltage levels (220 and 110 kV) with two wind farms integrated, considering two scenarios, without and with wind farms connected. The optimal tap positions of the transformers led to very close voltage variations between the buses of the network, quantified through an average voltage drop between the initial and final buses by 0.004 pu compared with 0.031 pu recorded in the scenario with both wind farms injecting power into the network and without coordinated control of the OLTCs. The energy-saving was over 30% in both scenarios, 33.5% (without wind farms) and 41.27% (both wind farms injecting power in the network). These results highlighted the positive effects of the proposed SQP-CC methodology on the real-time optimal operation of the electric networks integrating wind farms.

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“…Moreover, it potentially influenced resonance and interaction phenomenon in power system [9][10][11]. In case of higher share of renewable energy resources, power system reinforcement actions are required for overcoming network problem raised by these volatile sources [12]. Moreover, installed renewable energy based power generation may cause frequency and voltage variations, power factor reduction dan harmonic distortion [13].…”

Section: Introductionmentioning

confidence: 99%

Probabilistic Voltage Profiles Analysis of Power System with Large Scale Wind Power Integration

Krismanto¹

2021

IJIES

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One of the main focus in integrating large scale wind power plant is how to maintain voltage stability under different power injection from wind farm. In this paper, effects of large-scale wind power plants on voltage profile of power system is investigated. Practical test system of South-West Sulawesi, Indonesia with integration of two large scale wind power plants are considered. It was monitored that the increasing wind enhanced the voltage profile of the system. Impacts of wind power integration on power system voltage profile were investigated in this paper. Probability analaysis based on MCS were conduted to observe the impacts of uncertain power injection from wind farm on voltage fluctuation. It was clearly monitored that the probability distribution of bus voltage varied accordingly depending to location and capacity of wind farm. It was also monitored that enhancement of voltage profiles increased in proportion with power injection from wind farm. Thus, having more power production from wind farm results in better loadability and eventually improved voltage stability condition of power system as shown in bus 31 (the voltage magnitude increased from 0.942 to 0.952 pu).

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Analysing Renewable Energy Source Impacts on Power System National Network Code

Cited by 19 publications

References 13 publications

The Internet of Things Based Healthcare (HIoT): Networks, Technologies, Applications, and Challenges

The Internet of Things Based Healthcare (HIoT): Networks, Technologies, Applications, and Challenges

A New SQP Methodology for Coordinated Transformer Tap Control Optimization in Electric Networks Integrating Wind Farms

Probabilistic Voltage Profiles Analysis of Power System with Large Scale Wind Power Integration

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