Results 21 to 30 of about 114 (89)
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
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
Enhancing HVRT capability of DFIG-based wind farms using cooperative rotor-side SMES considering the blocking fault of LCC-HVDC system [PDF]
, 2021 Line-commutated converter based high voltage direct current (LCC-HVDC) has been applied for transferring bulk power from wind farms to load center through long distance in many countries.
Jiaqu Zheng +11 more
core +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
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
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
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
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