Abstract
Wind power generation has increased in the past twenty years due to the development of power electronic converters. Power generation through wind has advantages over other renewable sources, such as having more efficiency, being pollution-free, and its abundant availability. Power electronic converters play a vital role in the wind energy conversion system. This paper presents a wind-electric system with a permanent magnet synchronous generator, diode rectifier, DC-DC converter (buck-Boost or Cuk converter), and a three-phase five-level inverter. The five-level inverter is a modified form of a cascaded H-bridge inverter that uses a single DC source as an input irrespective of several levels and phases. As the wind speed changes, the Permanent Magnet Synchronous Generator (PMSG) voltage and frequency changes, but for practical applications, these changes should not be allowed; hence, a voltage controller is used that maintains the output voltage of a DC converter, andthus a constant AC output is obtained. The DClink voltage is maintained at the desired voltage by a Proportional plus Integral (PI)-based voltage controller. The DC link voltage fed to the multilevel inverter (MLI) is converted to AC to feed the load. The MLI is controlled with a new Selected Harmonic Elimination (SHE), which decreases the total harmonic distortion (THD). The system is simulated with an Resistive plus Inductive (RL) load and is tested experimentally with the same load;the results prove that the Cuk converter has a better efficiency compared to the Buck-Boost converter, and the system has less THD when compared with the conventional SHE Pulse Width Modulation (PWM) technique.
Highlights
Renewable energy sources such as wind, photovoltaic, and biogas are the primary alternativeRenewable sources such power as wind, photovoltaic, and Among biogas are primary alternative sources that areenergy used for electrical energy generation.thethe various conventional sources that are used for electrical power energy generation.Among the various conventional energies, energies, wind energy is cheap and available in plenty when compared to other sources [1]
The voltage output rotor is coupled of the diode rectifier is fed to the DC-DC converter whose output is connected to the proposed multilevel inverter (MLI), which is operated with the new SHEPWM
The output from the DC-DC converter is given to the proposed five-level MLI, autotransformer mimic the variable speed operation of the turbine and the Permanent Magnet Synchronous Generator (PMSG) combination
Summary
Renewable energy sources such as wind, photovoltaic, and biogas are the primary alternative. Thethe various conventional sources that are used for electrical power energy generation. Electric energy from wind can be generated be generated from wind turbines, generators, power electronic components, and controllers [3]. From wind turbines, generators, power electronic components, and system controllers. For a low-power wind energy conversion system in isolated areas, permanent magnet synchronous. For a low-power wind energy conversion system in isolated areas, permanent magnet generators (PMSGs) are of great interest in research [6,7]. The PMSG converts the mechanical energy of the wind turbine to electrical energy and produces. The PMSG converts the mechanical energy of the wind turbine to electrical energy and produces a three-phase AC voltage. The PMSG does not require DC excitation, as the permanent magnet produces a magnetic field without requiring a coil It does not require slip rings and brushes.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
