Journal ArticleDOI
A study of a wind power converter with micro-computer based maximal power control utilising an over-synchronous electronic scherbius cascade
Johan H. Enslin,J.D. van Wyk +1 more
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TLDR
In this article, the conversion of wind energy into electrical energy for feeding into the supply grid is studied, by using an induction generator with wound rotor and electronic rotor cascae with supply commutated inverter.About:
This article is published in Renewable Energy.The article was published on 1992-12-01. It has received 42 citations till now. The article focuses on the topics: Wind power & Power optimizer.read more
Citations
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Journal ArticleDOI
An intelligent maximum power extraction algorithm for inverter-based variable speed wind turbine systems
Quincy Wang,Liuchen Chang +1 more
TL;DR: In this paper, an intelligent maximum power extraction algorithm is developed by the authors to improve the system performance and to facilitate the control implementation, where an advanced hill-climb searching method is developed to take into account the wind turbine inertia.
Journal ArticleDOI
Performance optimization for doubly-fed wind power generation systems
TL;DR: In this article, a brushless doubly-fed machine (BDFM) is utilized to develop a variable speed generation (VSG) wind power generator, which employs a wind speed estimation based maximum power point tracker and a heuristic model based maximum efficiency point tracker (MEPT) to optimize the power output of the system.
Journal ArticleDOI
Methods for Increasing Region 2 Power Capture on a Variable-Speed Wind Turbine
TL;DR: In this paper, the authors proposed an adaptive region 2 control scheme for a variable-speed wind turbine, t c5Kv 2, which allows for maximum energy capture under real-world turbulent conditions.
Journal ArticleDOI
Maximum power extraction from wind energy system based on fuzzy logic control
TL;DR: In this article, a variable speed control scheme for grid-connected wind energy conversion system (WECS) using permanent magnet synchronous generator (PMSG) is proposed, which employs fuzzy logic controller (FLC) to effectively do this target.
ReportDOI
Adaptive Torque Control of Variable Speed Wind Turbines
TL;DR: In this paper, a new adaptive controller that is designed to resemble the standard non-adaptive controller used by the wind industry for variable speed wind turbines below rated power is presented.
References
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Proceedings ArticleDOI
A simplified maximal power controller for terrestrial photovoltaic panel arrays
J.J. Schoeman,J.D. van Wyk +1 more
TL;DR: In this article, a system that uses the V-I characteristics of commercial solar panels with insolation, ambient temperature and production spread as parameter, indicate that the maximum power is obtained from such a panel when it is loaded to a working voltage that is a fixed percentage of its open circuit voltage within (+2)%.
Journal ArticleDOI
A Closed-Loop Control System for the Reduction of Reactive Power Required by Electronic Converters
TL;DR: In this article, a closed-loop control system to reduce the reactive power required by electronic converters is proposed, where the instantaneous reactive power which consists of both displacement of fundamental current and harmonic distortion current is measured and compensated by a reactive power source connected parallel between the power lines and the converter.
Journal ArticleDOI
Power: Windmills stage a comeback: ‘Born again’ amid the search for fossil-fuel alternatives, wind-generated electricity now makes technical and economic sense
TL;DR: In this paper, the authors compared the suitability of vertical-axis wind machines with respect to their suitability for commercial power generation: constant-speed constant-frequency systems (synchronous and induction), variable-speed (variable-speed) constant frequency systems (field modulated system; double-output induction generator system; a system using an AC commutator generator; and a system employing a synchronous inverter).
Journal ArticleDOI
A new control philosophy for power electronic converters as fictitious power compensators
Johan H. Enslin,J.D. van Wyk +1 more
TL;DR: In this paper, a novel control approach that utilizes both thyristor-controlled-reactive sources (TCR) and dynamic power filters (DPF) was proposed for applications in fictitious power compensation.