Results 31 to 40 of about 275 (163)
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
IEEE Access, 2021 With the development of renewable energy technology, distributed power supply mode with multi energy and multi-directional power flow including utility grid, renewable energy and energy storage unit has gradually become a research hotspot.
Yanping Zhu +6 more
doaj +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
An Enhanced Control Procedure for that DVR to accomplish both LVRT and HVRT in the DFIG Wind Turbine
Journal of Physics: Conference Series, 2022 Abstract In general, Double Fed Induction Generator DFIG-driven wind turbines are extremely sensitive to fluctuations in the grid voltage. For enhancing DFIG wind turbines, this paper proposes an improved procedure for controlling Dynamic Voltage Restorer (DVR) to simultaneously perform both Low Voltage Ride Through (LVRT) and High ...
T. Hemanth +2 more
openaire +1 more source
Multi-Mode Voltage Sag/Swell Generator Based on Three-Phase Inverter Circuit
Energies, 2021 The voltage ride through capability of the major auxiliary variable-frequency drive (VFD) in large thermal power plants is the key technical issue of power grid and source coordination.
Qiguo Han +5 more
doaj +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
Frontiers in Energy Research, 2023 Wind energy has emerged as a prominent player in the realm of renewable energy sources, both in terms of capacity and technological adaptability. Among the various renewable energy technologies, wind turbine generators stand out as the most widely ...
Sobhy M. Abdelkader +7 more
doaj +1 more source
High-voltage Ride Through Strategy for DFIG Considering Converter Blocking of HVDC System
Journal of Modern Power Systems and Clean Energy, 2020 This paper presents a P-Q coordination based highvoltage ride through (HVRT) control strategy for doubly fed induction generators (DFIGs) based on a combined Q-V control and P-V de-loading control.
Changping Zhou +3 more
doaj +1 more source