Export file:


  • RIS(for EndNote,Reference Manager,ProCite)
  • BibTex
  • Text


  • Citation Only
  • Citation and Abstract

Speed control of synchronous machine by changing duty cycle of DC/DC buck converter

1 Environment and Sustainability Institute, University of Exeter, Penryn Campus, TR10 9FE, United Kingdom;
2 College of Engineering, Mathematics and Physical Sciences, University of Exeter, Penryn Campus, Penryn, Cornwall, TR10 9EZ, United Kingdom

Special Issues: Advances in Energy and Sustainable Development

Renewable energies such as wind or solar energy are naturally intermittent and can create technical challenges to interconnected grid in particular with high integration amounts. In addition, if wind or solar is used to supply power to a stand-alone system, continuous power supply will be met only if sufficient energy storage system is available. The global penetration of renewable energy in power systems is increasing rapidly especially wind and solar photovoltaic (PV) systems. Hybrid wind and solar PV generation system becomes very attractive solution in particular for stand-alone applications. It can provide better reliability since the weakness of one system could be complemented by the strength of the other one. When wind energy is integrated into grid, maximum power point tracking control could be used to optimize the output of wind turbine. In variable speed wind turbine, the turbine speed is varied according to the wind speed. This paper presents a comparison between two methods of controlling the speed of a wind turbine in a microgrid namely; Proportional-Integral (PI) control of the tip speed ratio and stored power curve. The PI method provides more controllability, but it requires an anemometer to measure the wind speed. The stored power curve method, however, is easier to implement, but the amount of energy extracted can be less. The system has been modelled using Matlab/Simulink.
  Article Metrics

Keywords wind energy; wind turbine; tip speed ratio; stored power curve; buck converter

Citation: Rashid Al Badwawi, Mohammad Abusara, Tapas Mallick. Speed control of synchronous machine by changing duty cycle of DC/DC buck converter. AIMS Energy, 2015, 3(4): 728-739. doi: 10.3934/energy.2015.4.728


  • 1. Chen Z, Guerrero JM, Blaabjerg F (2009) A review of the state of the art of power electronics for wind turbines. IEEE T Power Electr 24: 1859-1875.    
  • 2. Valenciaga F, Puleston PF (2008) High-order sliding control for a wind energy conversion system based on a permanent magnet synchronous generator. IEEE T Energy Conver 23: 860-867.    
  • 3. Kenji A, Yukichi T, Takahisa O, et al. (2002) A maximum power control of wind generator system using a permanent magnet synchronous generator and a boost chopper circuit. IEEE Power Conversion Conference 3: 1447-1452.
  • 4. Dali M, Belhadj J, Roboam X (2010) Hybrid solar-wind system with battery storage operating in grid-connected and standalone mode. Control and energy management—Experimental investigation. Energy 35: 2587-2595.
  • 5. Ahmed AA, Ran L, Bumby J (2008) Simulation and control of a hybrid PV-wind system. 4th IET International Conference on Power Electronics, Machines and Drives PEMD 3: 421-425.
  • 6. Sechilariu M, Wang BC, Locment F (2014) Supervision control for optimal energy cost management in DC microgrid. Design and simulation. Int J Electr Power Energy Syst 58: 140-149.    
  • 7. Resende FO, Lopes JAP (2011) Management and control systems for large scale integration of renewable energy sources into the electrical networks. IEEE International Conference on Computer as a Tool (EUROCON): 27-29.
  • 8. AlBadwawi R, Abusara M, Mallick T (2015) A Review of Hybrid Solar PV and Wind Energy System. J Smart Sci 3: 127-138.


This article has been cited by

  • 1. J Barsana Banu, M Balasingh Moses, S Rajarajacholan, Simulation and Control of MPPT Based Hybrid System with Boost Converter, IOP Conference Series: Materials Science and Engineering, 2018, 396, 012046, 10.1088/1757-899X/396/1/012046

Reader Comments

your name: *   your email: *  

Copyright Info: 2015, Rashid Al Badwawi, et al., licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution Licese (http://creativecommons.org/licenses/by/4.0)

Download full text in PDF

Export Citation

Copyright © AIMS Press All Rights Reserved