Abstract
In order to improve the efficiency and convenience of wind energy storage and solve the reproducibility of the hydraulic wind turbine, we present a storage type wind turbine with an innovative hybrid hydraulic transmission, which was adopted in the development of a 600 kW storage type wind turbine experimental platform. The whole hydraulic system of the storage type wind turbine is mainly an ingenious combination of a closed loop transmission and an open loop one, which can also be divided into three parts: hydraulic variable speed, hydraulic energy storage, power generation. For the study focusing on the capture and storage of wind energy, the mathematical model of the wind turbine except for the power generation was established under MATLAB/Simulink. A double closed loop control strategy is proposed to achieve the wind wheel speed regulation and wind energy storage. The dynamic simulations of the 600 kW storage type wind turbine experimental prototype were carried out under two different input signals. The results show that the wind wheel speed achieves the desired value at fast response and high precision using the control method given in this paper, and the proposed new storage type wind turbine is reasonable and practical.
Highlights
As a kind of renewable and alternative clean energy, wind energy has been considered by people all over the world
To verify the validity of the storage type wind turbine proposed study dynamic performance loop control, thethe model of the in thein energy storagestorage model performance of ofdouble doubleclosed closed loop control, the model of system the system system inwind the wind wind energy energy storage performance of double closed loop control, model of the the was established in the Matlab/Simulink environment
Aiming to resolve the poor quality of power generation caused by the randomness and fluctuation of wind energy and the unavailability of a variable pump connected directly to the wind wheel, this paper presents an innovative storage type wind turbine using hybrid hydraulic transmission
Summary
As a kind of renewable and alternative clean energy, wind energy has been considered by people all over the world. The closed loop part is closed a typical fixed pump control fixed variable motor hydraulic system and takes on power generation. The storage pump driven by the closed loop motor transforms performs wind energy storage and generates electricity functions. The wind turbine with hydraulic transmission has has a higher efficiency of wind (2) The wind turbine withhybrid hybrid hydraulic transmission a higher efficiency of energy wind storage because the accumulator is connected directly to the high-pressure line of the open loop unit. Energy storage because the accumulator is connected directly to the high-pressure line of the open (3) The accumulator can be shared by multiple wind turbines, which will reduce the costs of loop unit. The speed control of the wind wheel and the storage manipulation of wind energy in the wind energy storage model are chosen as the study subjects in this paper
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