Abstract
The aim of this study is to investigate changes in the wind power plant energy production parameters under the conditions of sudden wind changes and voltage drop. To achieve these goals, a simulation of operation of wind power plants was performed. Twelve wind turbines with variable rotational speed equipped with a Fuhrländer FL 2500/104 asynchronous double-fed induction generator (DFIG) were used, each with an installed capacity of 2.5 MW. A general scheme of a wind power plant has been developed using a modular-trunk power distribution scheme. The system consists of wind power modules and a central substation, which allows total power to be supplied to the power system at a voltage of 35 kV. The central substation uses two high voltage switchgears. Four modules were used, each of them consisting of three wind turbines, with a power of 7.5 MW. The simulation of the wind turbines was performed in the MATLAB® Simulink® software environment. The mode of response of the turbines to a change in wind speed, a voltage drop in the 35 kV voltage system, and a one-phase short circuit to the ground in the system of 10.5 kV voltage was explored. The results show that a sudden voltage drop and the appearance of short circuits influence the wind power plant (WPP) operation in a different way independent of regulation mode. The power generation from WPP will be limited when voltage drop occurred for both AC and Voltage regulation mode and during short circuits while WPP is set on AC regulation mode.
Highlights
IntroductionWind power is developing at a rapid pace all over the world
Licensee MDPI, Basel, Switzerland.Wind power is developing at a rapid pace all over the world
The aim of this paper is to investigate changes in the wind power plant energy proThe aim of this paper is to investigate changes in the wind power plant energy duction parameters under the conditions of sudden wind changes and voltage drop
Summary
Wind power is developing at a rapid pace all over the world. Wind Energy Association, by the end of 2020, the installed capacity of all wind power plants all over the world reached 744 GW [1]. Over the past twenty years, this area has evolved from an exotic phenomenon to a rapidly developing industry, where more efficient and reliable technologies have been implemented, and the costs have almost halved in the last ten years, which has enabled commercial production. Capable of producing several times more electricity than 20 years ago, and the cost of equipment per unit of output (kW/h) has more than doubled over the years. Evolution of wind energy production into an independent industry has had a positive effect on the economic development of modern society. The Wind Energy Council has estimated the employment in the wind energy sector to be around 350,000
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