Results 61 to 70 of about 3,905 (208)

Reactive current injection protocol for low-power rating distributed generation sources under voltage sags [PDF]

open access: yes, 2015
Voltage sags are one of the main problems in transmission and distribution networks. This study proposes a voltage support control scheme for grid-connected low-power rating inverters under voltage sags.
Camacho Santiago, Antonio   +4 more
core   +2 more sources

Value‐Based Reinforcement Learning for Inter‐Area Oscillations Mitigation in PV‐Integrated Power Systems

open access: yesIET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
Enhanced critic‐only DQN with smoothing enables continuous SVC control for damping inter‐area oscillations. The state selection via participation and residue analysis captures critical key modes. Orthogonal array efficiently tunes hyperparameters with low cost.
Gunawan Dewantoro   +3 more
wiley   +1 more source

Strengthening Renewable‐Rich Weak Grids Through Improved Voltage Stability and Fault‐Ride Through Capability

open access: yesIET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
To enhance grid stability and resilience in high renewable energy scenarios, this research proposes a cascaded control optimization framework guided by a novel dynamic resilience metric. Validated on a representative Australian grid, the framework significantly reduced voltage overshoot and extended fault clearing times, offering a robust solution for ...
Sadnan Sakib   +4 more
wiley   +1 more source

Study on a small‐signal analysis method for PMSG considering LVRT control and frequency regulation

open access: yesIET Generation, Transmission & Distribution, 2022
In a high proportion of new energy grids or a 100% new energy source of power grid, the dynamic performance of PMSG under fault conditions is very important.
Fan Xiao   +5 more
doaj   +1 more source

An Overcurrent Suppression Strategy for Distributed Photovoltaic Inverters Under Unbalanced Faults Based on Adaptive Linear Active Disturbance Rejection Control

open access: yesIET Smart Grid, Volume 9, Issue 1, January/December 2026.
After distributed photovoltaic (PV) systems are connected to the distribution network, the overcurrent problem caused by transient faults instantaneously threatens the safety of PV inverters and other equipment. This paper proposes a comprehensive control method that combines active‐loop adaptive linear active disturbance rejection control (A‐LADRC ...
Dandan Zhu   +6 more
wiley   +1 more source

Effect of Series Active Voltage Conditioners on Modernized Grid

open access: yes, 2015
Modernized “Smart” grids incorporate renewable energy sources on a widespread scale. Foreseen expansion in integrating more renewables is driven by global CO₂ emission concerns and depletion of fossil fuels.
Ahmed, Mostafa Ahmed Nazih
core   +2 more sources

Power Control Flexibilities for Grid-Connected Multi-Functional Photovoltaic Inverters [PDF]

open access: yes, 2016
This study explores the integration issues of next-generation high-penetration photovoltaic (PV) systems, where the grid is becoming more decentralised and vulnerable.
Blaabjerg, Frede   +3 more
core   +2 more sources

Experimental Verification of the Performance of a Nonlinear Regulator Based on Genetic Algorithms in Improving the Power Quality of DFIG

open access: yesInternational Transactions on Electrical Energy Systems, Volume 2026, Issue 1, 2026.
This experimental work investigates the energy control of the doubly fed induction generator. The energy control is performed using a direct power control based on a fractional‐order proportional‐integral (FOPI) regulator. The PI regulator parameters are calculated using a genetic algorithm. The use of this strategy ensures stable operation of the DFIG,
Habib Benbouhenni   +6 more
wiley   +1 more source

A Coordinated LVRT Control for a PMSG Wind Turbine

open access: yesIFAC-PapersOnLine, 2017
Abstract This paper proposes a coordinated controller for a permanent-magnet synchronous generator wind turbine to enhance its low voltage ride through capability. In the proposed method, both rotor side and grid side converters are cooperatively controlled to regulate the DC link voltage during the grid fault.
Chunghun Kim   +2 more
openaire   +3 more sources

3-Phase 4-wire matrix converter-based voltage sag/ swell generator to test low-voltage ride through in wind energy conversion systems [PDF]

open access: yes, 2014
The high penetration of energy from wind energy conversion systems (WECSs) can have a significant influence on the stability, power quality and reliability of power systems.
Cardenas R.   +7 more
core   +2 more sources

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