Impact of distributed generation on the protection systems of distribution networks: analysis and remedies – review paper

Meskin, Matin; Domijan, A.; Grinberg, Ilya

doi:10.1049/iet-gtd.2019.1652

Cited by 53 publications

(22 citation statements)

References 124 publications

(242 reference statements)

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“…The marginal clearing prices are calculated based on the Lagrange multiplier of ( 1) and (2). By analogy with the definition of nodal electric price, the nodal energy price is defined as the system marginal cost for meeting the increasing unit demand.…”

Section: Joint Energy and Frp Market Mechanismmentioning

confidence: 99%

Joint energy and flexiramp market equilibrium model for regional‐integrated electricity‐heat systems considering flexibility exploitation of district heating networks

Wang

Chen

et al. 2021

Energy Science & Engineering

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As an impetus for worldwide social development, energy resources, especially renewable energy resources, are being valued over the past decades. 1,2 Meanwhile, the influence imposed by the fluctuation and uncertainty 3 of the increasing renewable energy integrated into the power system is non-negligible. Especially in power distribution networks (PDNs), the blossom of distributed renewable energy technology places higher requirements

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Section: Joint Energy and Frp Market Mechanismmentioning

confidence: 99%

Joint energy and flexiramp market equilibrium model for regional‐integrated electricity‐heat systems considering flexibility exploitation of district heating networks

Wang

Chen

et al. 2021

Energy Science & Engineering

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“…Fault protection in DSs is a challenging and complex issue, especially considering distributed generation (DG), as the power flow changes depending on the network topology and operational mode. Therefore, the short circuit fault current value will be affected in some cases, which might lead to a miscoordination of the protective devices PDs [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

A THD-Based Fault Protection Method Using MSOGI-FLL Grid Voltage Estimator

Hanaineh

Matas

Mariachet

et al. 2023

Sensors

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The rapid growth of the distributed generators (DGs) integration into the distribution systems (DSs) creates new technical issues; conventional relay settings need to be updated depending on the network topology and operational mode as fault protection a major challenge. This emphasizes the need for new fault protection methods to ensure secure protection and prevent undesirable tripping. Total harmonic distortion (THD) is an important indicator for assessing the quality of the grid. Here, a new protection system based on the THD of the grid voltages is proposed to address fault events in the electrical distribution network. The proposed protection system combines the THD with the estimates of the amplitude voltages and the zero-sequence component for defining an algorithm based on a finite state machine (FSM) for the detection, identification, and isolation of faults in the grid. The algorithm employs communication lines between all the protective devices (PDs) of the system to transmit tripping signals, allowing PDs to be coordinated. A second order generalized integrator (SOGI) and multiple SOGI (MSOGI) are used to obtain the THDs, estimated amplitude voltages, and zero-sequence component, which allows for fast detection with a low computational burden. The protection algorithm performance is evaluated through simulations in MATLAB/Simulink and a comparative study is developed between the proposed protection method and a differential relay (DR) protection system. The proposed method shows its capability to detect and isolate faults during different fault types with different fault resistances in different locations in the proposed network. In all the tested scenarios, the detection time of the faults has been between 7–10 ms. Moreover, this method gave the best solution as it has a higher accuracy and faster response than the conventional DR protection system.

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“…Limited fossil fuel resources and the daily increase in pollutants from global warming are giving new motivation to renewable energy sources like PV, wind, tidal, biomass, etc [1]. Photovoltaic (PV) systems are gaining popularity as several advantageous features such as low maintenance costs, and lack of moving parts can be installed in remote areas and works as a stand-alone system.…”

Section: Introductionmentioning

confidence: 99%

A novel control technique for various modes of grid-connected PV system to improve power quality.

Tiwari

Agarwal

2023

Preprint

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A novel control strategy for a single grid-connected PV system with power backup in different modes of operation, including constant load, changing atmospheric circumstances, and load variable conditions. The proposed controller works with a large nonlinear load under different modes of operation. The controller operates in such a way that, it can achieve different functions such as maintaining power flow between the photovoltaic (PV) module to the grid, maintaining UPF (unity power factor) at the point of common coupling(reactive power compensation), synchronizing a grid with PV (grid current harmonics compensation) and regulates the operation of battery(charging or discharging) for electric vehicle application. Implementing the proposed controller reduces the complexity of the active shunt filter at the point of common coupling (PCC). A maximum Power Point (MPPT) controller, optimized with perturb & observe (P&O)algorithm is used to get optimum power from the PV module. Thesimulation findings validate the operation of the suggested controlstrategy in a grid-connected PV system with a battery backup topology.

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Impact of distributed generation on the protection systems of distribution networks: analysis and remedies – review paper

Cited by 53 publications

References 124 publications

Joint energy and flexiramp market equilibrium model for regional‐integrated electricity‐heat systems considering flexibility exploitation of district heating networks

Joint energy and flexiramp market equilibrium model for regional‐integrated electricity‐heat systems considering flexibility exploitation of district heating networks

A THD-Based Fault Protection Method Using MSOGI-FLL Grid Voltage Estimator

A novel control technique for various modes of grid-connected PV system to improve power quality.

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