Results 11 to 20 of about 76 (75)
IET Generation, Transmission & Distribution, 2022 This paper proposes a coordinated control strategy to enhance the low/high‐voltage ride‐through (L/HVRT) capability of grid‐tied micro‐grids (MGs). The novel control scheme, which is based on grid‐following concepts, contains two layers for each power ...
Reza Deihimi Kordkandi +2 more
doaj +2 more sources
IET Smart Grid, Volume 6, Issue 5, Page 447-469, October 2023., 2023 Power systems are transitioning towards a higher proportion of inverter‐based resources. This leads to the loss of synchronous generators and their associated control mechanisms. To address low inertia challenges, new international fast frequency response services are established, and renewable enabling technologies and sources are investigated to ...
Dlzar Al Kez +3 more
wiley +1 more source
Operating Voltage and Frequency Regime Validation of Grid Code Requirements in South Africa
International Transactions on Electrical Energy Systems, Volume 2023, Issue 1, 2023., 2023 South Africa first implemented rolling blackouts known as load shedding to protect the integrity and maintain stability of their ailing electrical grid over a decade ago. Since then, load shedding has become a daily occurrence, which South Africa plans to alleviate through the addition of grid‐connected renewable generation.
Gideon D. Joubert +2 more
wiley +1 more source
IET Generation, Transmission &Distribution, Volume 16, Issue 14, Page 2928-2938, July 2022., 2022 Abstract This paper suggests a new control algorithm for On‐Load Tap Changer (OLTC) of wind farm main transformer that is responsible for voltage regulation of collector network. The conventional control scheme adjusts the voltage of LV side of transformer without considering the wind turbine voltages.
Bakhtyar Hoseinzadeh, Frede Blaabjerg
wiley +1 more source
STATCOM Controller Tuning to Enhance LVRT Capability of Grid‐Connected Wind Power Generating Plants
Journal of Electrical and Computer Engineering, Volume 2022, Issue 1, 2022., 2022 This paper investigates the utilization of a STATCOM to enhance the LVRT capability of wind power plants (WPPs) during grid faults. The STATCOM under investigation is tuned using the Water Cycle Algorithm (WCA), Particle Swarm Optimization (PSO), and a hybrid algorithm of both WCA and PSO. Simulations are conducted in MATLAB programming software, using
Irene Ndunge Muisyo +3 more
wiley +1 more source
Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022 A synergetic control method is proposed to improve the fault ride through capability of front‐end speed regulation wind turbine (FESRWT). In case of three‐phase short‐circuit fault and single‐phase grounding fault, this method can accelerate the attenuation of stator flux transient component and restrain the fluctuation of rotor speed, make generator ...
Xiaoqing Li +5 more
wiley +1 more source
Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022 Power quality (PQ) is a key issue, particularly for technologically advanced process equipment, whose performance mainly depends on the quality of supply. Problems with PQ such as voltage swells/sags, interruptions, and harmonics are defined by any voltage, current, or frequency abnormalities causing damage or failure of the end‐user equipment. Outages
Devalraju Prasad +2 more
wiley +1 more source
A static‐commutated device to contain voltage variations for low‐voltage active users
IET Electric Power Applications, Volume 15, Issue 8, Page 1095-1110, August 2021., 2021 Abstract The ever‐wider spread of distributed generation in distribution systems feeds the increasing demand for voltage regulation in low‐voltage networks. For these distribution grids, characterised by simpler structures than medium voltage systems but with a larger number of buses and feeders, voltage control devices have to guarantee fast and ...
Giovanni Mercurio Casolino +2 more
wiley +1 more source
High-voltage ride through strategy for DFIG-based wind farms under bipolar blocking of HVDC system
Energy Reports, 2020 Excessive reactive power generated by the filter and compensation devices of rectifier station will flow into the AC system when DC bipolar block occurs, which brings a high voltage threat to doubly-fed induction generator (DFIG)-based wind farms at the ...
Ruowei Zhang +3 more
doaj +1 more source
Vector control strategy for motor‐generator pair drive inverters in parallel operation
IET Renewable Power Generation, Volume 15, Issue 11, Page 2383-2395, 17 August 2021., 2021 Abstract In view of the weak moment of inertia for power system with high penetration of renewable energy and limited transient voltage support of power electronics, a synchronous motor‐generator pair (MGP) is proposed as a possible solution for renewable energy integration to improve grid stability. In order to realize the large‐scale renewable energy
Chenyang Li +4 more
wiley +1 more source