Vertical Axis Wind Turbine Improvement using DC-DC Boost Converter

Khairunnisa Khairunnisa,Edi Yohanes,Syaiful Rachman,Jazuli Fadil,Awan Uji Krismanto,Mochamad Ashari,Soedibyo Soedibyo,Mahmoud Abuzalata

doi:10.1051/e3sconf/202018800017

Abstract

Vertical axis wind turbine (VAWT) can be operated in any direction of wind speed, but it has low rotation. To improve the performance of VAWT in which low rotation, this paper presents a simple control strategy of VAWT using a DC-DC boost converter to tap constant voltage in a standalone application. The main objective of this research is to maintain a constant output voltage of converter despite variation input voltage affected by variable wind speed. A simple proportional-integral (PI) controller has been used for a DC-DC boost converter and tested in MATLAB-Simulink environment, with the closed-loop system of the converter maintain constant output voltage although the wind speed is kept changing. The PI controller obtains the feedback from the output voltage of the boost converter to produce the correct pulse width modulation (PWM) duty cycle and trigger the metal oxide semiconductor field effect transistor (MOSFET) following the reference voltage of the turbine. This system has suppressed the value of overshoot and increased the efficiency of wind turbines as 34 %.

Highlights

Wind energy conversion is the transformation of energy from wind kinetic energy into mechanical energy using turbine rotor blades
Wind speed is an important parameter in a wind energy conversion system, especially in converting mechanical power output into electrical energy
This paper presents a dynamic model of stand-alone type vertical axis wind turbines with a small scale

Summary

Introduction

Wind energy conversion is the transformation of energy from wind kinetic energy into mechanical energy using turbine rotor blades. Turbine rotor shafts are connected to generators that produce electrical energy. The main source of energy for the wind turbine is the wind speed which is key to producing the maximum power output. Wind speed is an important parameter in a wind energy conversion system, especially in converting mechanical power output into electrical energy. The control method needs to be carefully designed. A control method is needed so that the turbine can still operate safely in a wide range of wind speeds. That the turbines work remains protected even when wind speed is excessive [2]

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