Realization of an inverter with PWM command for photovoltaic system

Bechekir, S.; Bousmaha, Imen Souhila; Brahami, Mostéfa; Abdeslam, Djaffar Ould

doi:10.1109/icee-b.2017.8192003

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…Usually, a wave that is symmetrical with respect to the quarter period is used, and the other angles are deduced according to the symmetry. Figure 3 illustrates the existence of odd-order harmonics after the decomposition of a Fourier series of a PWM signal that is symmetrical with respect to the quarter period and antisymmetric with respect to the half period [27]- [29].…”

Section: Calculation Methodsmentioning

confidence: 99%

SHEPWM in three-phase voltage source inverters by modified Newton–Raphson

Bousmaha

Bechekir

Abdeslam

et al. 2023

IJPEDS

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<span lang="EN-US">This paper describes a new strategy for optimizing the switching angles of a three-phase inverter in a photovoltaic system. It presents non-traditional solutions to the problem of selective harmonic elimination (SHE) in three-phase inverter (VSI)-fed induction motor drives. The aforementioned problem was solved independently by using hybrid genetic algorithms (HGAs) and a modified Newton–Raphson method. GAs can obtain the correct solution even if the first generation is arbitrary. The solution then converges rapidly. The modified Newton–Raphson method is used to solve transcendental equations of the SHE pulses width modulation (SHEPWM) technique, which is a unique method that produces all possible solutions without assuming the initial angles. This modified technique is not complex and ensures rapid convergence to the solution. A real-time experimental verification of the SHEPWM technique was performed in the OP5600 RT-Lab simulator. The results obtained show that the proposed SHEPWM algorithm controls the fundamental voltage and effectively eliminates the desired harmonics, and that the evolution of the signal quality increases according to the modulation index. For M=1.1 the SHE-PWM gives the best result: a current THD of 5% for a switching frequency of 1150 Hz.</span>

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Section: Calculation Methodsmentioning

confidence: 99%

SHEPWM in three-phase voltage source inverters by modified Newton–Raphson

Bousmaha

Bechekir

Abdeslam

et al. 2023

IJPEDS

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“…2. Inverter concept with pulsed DC voltage link [11]: these concepts use the same inverters as described in point 1, but their control unit generates the absolute value of a 50 Hz sine wave instead of a DC voltage. This pulsed DC link voltage is inverted by a 50 Hz switching inverter.…”

Section: Introduction Electromagnetic Compatibility (Emc)mentioning

confidence: 99%

Development of a boost-inverter converter under electromagnetic compatibility stress equipping a photovoltaic generator

Bechekir,

Zeghoudi,

Ould-Abdeslam

et al. 2023

Electrical Engineering & Electromechanics

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Introduction. Static converters are among the most widely used equipment in several applications, for example, electric power transmission, motor speed variation, photovoltaic panels, which constitute the electronic components. The design of a power electronics device is done without any real means of predicting electromagnetic disturbances during the product development phase. This case-by-case development process is repeated until a solution is found that best respects all the electromagnetic compatibility constraints. The purpose is the development of a boost-inverter converter under electromagnetic compatibility constraints. The improvements made to the inverter are mainly in the control, the choice of power switches and the electromagnetic compatibility solutions brought to the device. The quality of the wave is improved by acting on the type of control and the choice of switches. Methods. In the first time, we have highlighted a comparison between two most frequently used power components (MOSFET and IGBT) in the inverter and the boost by simulation using ISIS and LT-spice softwares. The sinusoidal voltage with modulation circuit is greatly simplified by the use of the PIC16F876A microcontroller. In a second step, we validate the obtained results with experimental measurements. We start with the boost, then the inverter. In addition, the circuits made are housed in boxes to avoid accidental contact for people. The equipment is designed to isolate the load from the power supply in case of: over voltages, under voltages, high and low battery level and short circuits. Results. All the simulations were performed using the ISIS and LT-spice softwares. The obtained results are validated by experimental measurements performed in the ICEPS Laboratory at the University of Sidi Bel-Abbes in Algeria. The realization of a single-phase inverter with a pulse width modulation control, associated with a boost chopper and the waveforms of the current and voltage across each static converter its opening are presented. The sources of disturbances in power devices are at the origin of the temporal and frequency characteristics of the signals coming from the hot spots of the power switches and the resonances created during the switching of these elements.

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Realization of an inverter with PWM command for photovoltaic system

Cited by 2 publications

References 2 publications

SHEPWM in three-phase voltage source inverters by modified Newton–Raphson

SHEPWM in three-phase voltage source inverters by modified Newton–Raphson

Development of a boost-inverter converter under electromagnetic compatibility stress equipping a photovoltaic generator

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