Current demand of high performance inverters for renewable energy systems

Daher, Sérgio; Schmid, J.; Antunes, Fernando Luiz Marcelo

doi:10.1109/epe.2007.4417466

Cited by 10 publications

(7 citation statements)

References 14 publications

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“…Although the ideal inverter has output voltage waveform that is sinusoidal, the practical inverter has a waveform which is non-sinusoidal and includes harmonics, therefore, the electronic devices driven by this inverter will be damaged as a result of these harmonic contents [18,19]. The inverter output harmonics content depends on the number of pulses per cycle in inverter output [19][20][21][22][23]. Some pulses are affected by the circuit and some of the pulses are affected by circuit power losses problem during.…”

Section: The Problemmentioning

confidence: 99%

Development and implementation of two-stage boost converter for single-phase inverter without transformer for PV systems

Elnaghi¹,

Dessouki²,

Abd-Alwahab³

et al. 2020

IJECE

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This paper offers a two-stage boost converter for a single-phase inverter without transformer for PV systems. Each stage of the converter is separately controlled by a pulse width modulated signal. A Simulink model of the converter using efficient voltage control topology is developed. The proposed circuit performance characteristics are explained and the obtained simulation results are confirmed through the applied experiments. Moreover, this paper has examined the control circuit of a single-phase inverter that delivers a pure sine wave with an output voltage that has the identical value and frequency as a grid voltage. A microcontroller supported an innovative technology is utilized to come up with a sine wave with fewer harmonics, much less price and an easier outline. A sinusoidal pulse width modulation (SPWM) technique is used by a microcontroller. The developed inverter integrated with the twostage boost converter has improved the output waveform quality and controlled the dead time as it decreased to 63 µs compared to 180 µs in conventional methods. The system design is reproduced in Proteus and PSIM Software to analyze its operation principle that is confirmed practically.

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Section: The Problemmentioning

confidence: 99%

Development and implementation of two-stage boost converter for single-phase inverter without transformer for PV systems

Elnaghi¹,

Dessouki²,

Abd-Alwahab³

et al. 2020

IJECE

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“…In [2] the cascade H-bridge inverter with several isolation transformers is suggested as a suitable inverter topology for the PV inverter. This solution brings problems with isolation transformers which are bulky and expensive.…”

Section: Multilevel Converter Topologiesmentioning

confidence: 99%

“…There is a need to increase the lifetime of photovoltaic inverters as well as their reliability. High voltage stresses decrease the lifetime of many electrical components [2]. Lower du/dt stresses of components in multilevel H-bridge inverter can help to meet these needs.…”

Section: Introductionmentioning

confidence: 99%

Predictive Current Control of Grid-tied Cascade H-bridge Inverter

Pastor

Dudrik

2013

Automatika

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Original scientific paperThis paper presents a grid-tied cascade H-bridge inverter with predictive current control technique. The proposed 15-level cascade inverter consists of three H-bridge inverters with separated DC sources. At the output of the cascade inverter an L filter is used as a grid filter. The cascade inverter is controlled by the mean of RT-Lab. The predictive current regulator and one-phase synchronous reference frame PLL are designed with help of Rapid Control Prototyping. The proposed control method uses a discrete model of the system to predict behavior of the system for each of 15 voltage levels of inverter output voltage. Verification by simulation and on a laboratory model is described.Key words: Cascade inverter, Predictive current control, RT-Lab, Synchronous frame PLL Strujno prediktivno upravljanje mrežnim H-mosnim izmjenjivačem. U ovom radu prikazan je kaskadni mrežni izmjenjivač u H-mostu sa strujnim prediktivnim upravljanjem. Predloženi 15-razinski kaskadni izmjenjivač sadrži tri H-mosna izmjenjivača s odvojenim DC izvorima. Na izlazu kaskadnog izmjenjivača dodan je induktivni mrežni filter. Kaskadni izmjenjivač upravlja se korištenjem RT-Lab programskog okruženja. Strujni prediktivni regulator i jednofazni PLL poravnat sa sinkronim koordinatnim sustavom dizajnirani su uz pomoć Rapid Control Prototyping metode. Predložena metoda upravljanja koristi diskretni model sustava za predikciju ponašanja sustava u svakom od 15 naponskih razina izlaznog napona izmjenjivača. Upravljanje je provjereno na simulacijskom modelu sustava i laboratorijskom postavu.Ključne riječi: kaskadni izmjenjivač, strujno prediktivno upravljanje, RT-Lab, PLL u sinkronom koordinatnom sustavu

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“…Single-phase full-bridge inverters are currently used in practical applications [1]. Notably, DC-AC inverters are also used in renewable energy applications [2].…”

Section: Introductionmentioning

confidence: 99%

Fast-scale instability phenomena and chaotic control of voltage control single-phase full-bridge inverter via varying load resistance

Hsieh

Chang

Chen

et al. 2009

2009 4th IEEE Conference on Industrial Electronics and Applications

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This work investigates fast-scale instability phenomena and chaotic control of voltage-controlled single-phase full-bridge inverter via varying load resistance. First, the operational principles of a voltage-controlled single-phase fullbridge inverter are examined and the mapping state-space equations are generated. Additionally, the MATLAB/SIMULINK tool is adopted for experimental simulation in this paper. The load resistance is changed to analyze the fast-scale instability waveforms of the inductor current and output voltage, and we propose the method of time-delay feedback for chaotic control to stable state of period-1. Experimental simulation clearly indicates that MATLAB/SIMULINK can provide available results and validate the mathematical models.Index Terms-Single-phase full-bridge inverter, fast-scale instability phenomena.

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Current demand of high performance inverters for renewable energy systems

Cited by 10 publications

References 14 publications

Development and implementation of two-stage boost converter for single-phase inverter without transformer for PV systems

Development and implementation of two-stage boost converter for single-phase inverter without transformer for PV systems

Predictive Current Control of Grid-tied Cascade H-bridge Inverter

Fast-scale instability phenomena and chaotic control of voltage control single-phase full-bridge inverter via varying load resistance

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