Review of low voltage ride-through capabilities in wind energy conversion system




HIGHLIGHTS
  • What: Nonetheless, this study has pinpointed a gap in data pre-processing techniques within the domain that necessitates additional exploration in the future. The aim of the research was to present a thorough evaluation of control strategies utilized to enhance ESS coordination in the context of a hybrid energy storage system (HESS), thereby streamlining the integration of RESs into the power grid. The aim of establishing grid codes is to guarantee the grid`s stability and consistent operation . The first category pertains to alterations made to the hardware, while the second category pertains to adjustments made to the traditional controllers for the converters of DFIG This study focuses on both traditional controllers and hardware.
  • Who: MDPI from the Department of Power Engineering, Durban University of Technology, Durban, South Africa have published the paper: Type of the Paper (Article, in the Journal: Energies 2024, 17, 5321. of /2024/
  • How: This article presents the energy storage system (ESS) for both stand-alone and grid-connected microgrid systems. The results showed that the AGWO method was more effective than both the GWO and PSO algorithms. This paper proposes that researchers investigate the power contribution of each generator following a load change on the power system.
  • Future: The study offers a comprehensive understanding of the current landscape of LVRT in WECSs and pinpoints future research directions to optimize their performance in increasingly complex grid environments.
SUMMARY

    The absence of an adequate power supply or the necessity for sudden load shedding results in observable alterations in power grid frequency, which serves as a prominent characteristic of a power grid infrastructure. As the level of wind power integration in an electrical grid rises, the likelihood of the grid`s frequency deviating from its normal operating frequency likewise increases during a system event. To maintain a consistent frequency, various techniques can be employed, including speed governors, electronic power circuits for variable speed generation sources, and power system stabilizers in interconnected systems. The aim of the research was to present a thorough evaluation of control strategies utilized to enhance ESS coordination in the context of a hybrid energy storage system (HESS), thereby streamlining the integration of RESs into the power grid. Disruption in the voltage and frequency stability of the power system may lead to a significant disturbance in the bulk power system. In, the author investigated the implementation of governor droop control on a system consisting of a steam turbine and a hydro turbine connected by power lines. The author constructed two controllers, an inertial controller and a droop controller, and evaluated their frequency control capabilities in an isolated power system. The author tested both controllers in a computational environment as well as on a nonlinear system that replicates a small-scale power generation system. By adjusting voltage and current compensation, or improving control performance in uncertain, nonlinear systems through internal control modifications, changes can enhance control effectiveness during grid voltage fluctuations. @@

LAY DEFINITIONS
  • Alternating current: Alternating current (AC) is an electric current which periodically reverses direction and changes its magnitude continuously with time in contrast to direct current (DC) which flows only in one direction. Alternating current is the form in which electric power is delivered to businesses and residences, and it is the form of electrical energy that consumers typically use when they plug kitchen appliances, televisions, fans and electric lamps into a wall socket
  • Artificial neural networks: Artificial neural networks, usually simply called neural networks, are computing systems vaguely inspired by the biological neural networks that constitute animal brains. An ANN is based on a collection of connected units or nodes called artificial neurons, which loosely model the neurons in a biological brain
  • Direct current: Direct current is the unidirectional flow of electric charge. Direct current is produced by sources such as batteries, power supplies, thermocouples, solar cells, or dynamos
  • Distributed generation: Distributed generation is electrical generation and storage performed by a variety of small, grid-connected or distribution system-connected devices referred to as distributed energy resources (DER). Conventional power stations, such as coal-fired, gas, and nuclear powered plants, as well as hydroelectric dams and large-scale solar power stations, are centralized and often require electric energy to be transmitted over long distances
  • Genetic algorithm: In computer science and operations research, a genetic algorithm is a metaheuristic inspired by the process of natural selection that belongs to the larger class of evolutionary algorithms. Genetic algorithms are commonly used to generate high-quality solutions to optimization and search problems by relying on biologically inspired operators such as mutation, crossover and selection
  • Particle swarm optimization: In computer science, particle swarm optimization is a computational method that optimizes a problem by iteratively trying to improve a candidate solution with regard to a given measure of quality. It solves a problem by having a population of candidate solutions, here dubbed particles, and moving these particles around in the search-space according to simple mathematical formulae over the particle`s position and velocity
  • Kinetic energy: In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity
  • Maximum power point tracking: Maximum power point tracking (MPPT) or sometimes just power point tracking (PPT) is a technique used commonly with wind turbines and photovoltaic solar systems to maximize power extraction under all conditions. Although it primarily applies to solar power, the principle applies generally to sources with variable power: for example, optical power transmission and thermophotovoltaics
  • Synchronous generator: Synchronization is the coordination of events to operate a system in unison. The familiar conductor of an orchestra serves to keep the orchestra in time
  • Artificial intelligence: Theory and development of COMPUTER SYSTEMS which perform tasks that normally require human intelligence. Such tasks may include speech recognition, LEARNING; VISUAL PERCEPTION; MATHEMATICAL COMPUTING; reasoning, PROBLEM SOLVING, DECISION-MAKING, and translation of language
  • Paper: Thin sheets made from wood pulp and other fibrous substances, used for writing, drawing, printing, image duplication or wrapping.

Licence: cc-by

Site reference: https://www.mdpi.com/1996-1073/17/21/5321/pdf?version=1729863645

DOI reference: https://www.doi.org/10.3390/en17215321

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source https://magazine.sciencepod.net/review-of-low-voltage-ride-through-capabilities-in-wind-energy-conversion-system/

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