ACO based speed control of SRM fed by photovoltaic system

Oshaba, Ahmed Said; Ali, E. S.; Elazim, S.M. Abd

doi:10.1016/j.ijepes.2014.12.009

Cited by 59 publications

(14 citation statements)

References 25 publications

(21 reference statements)

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“…In addition, the conversion efficiency also depends on the spectral and angular selectivity of the PV cells [25]. Besides, the efficiency of this system may be improved when integrated with maximum power-point tracker and optimizing its speed control [26][27][28]. The power input in is considered zero when the inclination angle is negative, where sol is the solar cell efficiency [24] and Psd is the solar spectral density [12].…”

Section: Mathematical Modelmentioning

confidence: 99%

Power Management Strategy by Enhancing the Mission Profile Configuration of Solar-Powered Aircraft

Rajendran¹,

Lim²,

Ong³

2016

International Journal of Aerospace Engineering

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Solar energy offers solar-powered unmanned aerial vehicle (UAV) the possibility of unlimited endurance. Some researchers have developed techniques to achieve perpetual flight by maximizing the power from the sun and by flying in accordance with its azimuth angles. However, flying in a path that follows the sun consumes more energy to sustain level flight. This study optimizes the overall power ratio by adopting the mission profile configuration of optimal solar energy exploitation. Extensive simulation is conducted to optimize and restructure the mission profile phases of UAV and to determine the optimal phase definition of the start, ascent, and descent periods, thereby maximizing the energy from the sun. In addition, a vertical cylindrical flight trajectory instead of maximizing the solar inclination angle has been adopted. This approach improves the net power ratio by 30.84% compared with other techniques. As a result, the battery weight may be massively reduced by 75.23%. In conclusion, the proposed mission profile configuration with the optimal power ratio of the trajectory of the path planning effectively prolongs UAV operation.

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Section: Mathematical Modelmentioning

confidence: 99%

Power Management Strategy by Enhancing the Mission Profile Configuration of Solar-Powered Aircraft

Rajendran¹,

Lim²,

Ong³

2016

International Journal of Aerospace Engineering

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“…In the past, there were many commonly used control rules. Traditionally, these rules have used PID system controllers [7,8], but recently many rules using optimization to implement automatic parameter settings have been presented. However, most optimization algorithms fall into the local optimum trap.…”

Section: Introductionmentioning

confidence: 99%

Analyses and Control of Chaotic Behavior in DC-DC Converters

Tian

et al. 2018

Mathematical Problems in Engineering

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In this study the nonlinear behavior of a buck converter was simulated and the responses of Phases 1 and 2 and the chaotic phase were investigated using changes of input voltage. After a dynamic system model had been acquired using basic electronic circuit theory, Matlab and Pspice simulations were used to study system inductance, resistance, and capacitance. The characteristic changes of input voltage, and phase plane traces from simulation and experiments showed nonlinear behavior in Phases 1 and 2, as well as a chaotic phase. PID control and Integral Absolute Error (IAE) were used as adaption coefficients to control chaotic behavior, and particle swarm optimization (PSO) and the genetic algorithm were used to find the optimal gain parameters for the PID controller. Simulation results showed that the control of chaotic phenomena could be achieved and errors were close to zero. Fuzzy control was also used effectively to prevent chaos. The experimental results also showed nonlinear behavior from Phases 1 and 2 as well as the chaotic phase. Laboratory experiments conducted using both PID and fuzzy control echoed the simulation results. The fuzzy control results were somewhat better than those obtained with PID.

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“…In recent years, the research on DFIG high-performance control is gradually increased under the condition of unbalanced grid voltage according to papers [1][2][3][4][5][6].However, the research on the highperformance control strategy of DFIG wind turbine is relatively few in the case of harmonic. The research of paper [7] shows that, harmonic voltage will create the ripple of electromagnetic torque of the motor, increase the copper loss and iron loss, lead to stator and rotor current distortion and so on.…”

Section: Introductionmentioning

confidence: 99%

Improved control strategy for PI-R current of DFIG considering voltage and current harmonics compensation

Song

Liu

Zhao

et al. 2016

IOP Conf. Ser.: Earth Environ. Sci.

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Abstract.With the rapid development of wind power generation, the related research of wind power control and integration issues has attracted much attention, and the focus of the research are shifting away from the ideal power grid environment to the actual power grid environment. As the main stream wind turbine generator, a doubly-fed induction generator (DFIG) is connected to the power grid directly by its stator, so it is particularly sensitive to the power grid. This paper studies the improvement of DFIG control technology in the power grid harmonic environment. Based on the DFIG dynamic model considering the power grid harmonic environment, this paper introduces the shortcomings of the common control strategy of DFIG, and puts forward the enhanced method. The decoupling control of the system is realized by compensating the coupling between the rotor harmonic voltage and harmonic current, improving the control performance. In addition, the simulation experiments on PSCAD/EMTDC are carried out to verify the correctness and effectiveness of the improved scheme.

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ACO based speed control of SRM fed by photovoltaic system

Cited by 59 publications

References 25 publications

Power Management Strategy by Enhancing the Mission Profile Configuration of Solar-Powered Aircraft

Power Management Strategy by Enhancing the Mission Profile Configuration of Solar-Powered Aircraft

Analyses and Control of Chaotic Behavior in DC-DC Converters

Improved control strategy for PI-R current of DFIG considering voltage and current harmonics compensation

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