Power loss model and efficiency analysis of grid-connected seven-switch boost-type photovoltaic current source inverter using two power switches configurations

Ezzeddine, Kawther; Hamouda, Mahmoud; Belaïd, Mohamed Ali; Kanaan, Hadi Y.; Al‐Haddad, Kamal

doi:10.1007/s00202-023-01840-4

Cited by 3 publications

(2 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is worth noting that B is divided between inductor currents in forward and reverse power conditions. Furthermore, the proposed decoupling supports advanced versions of Steinmetz equation because power inductors losses are estimated into switching interval, while inductor current and ripple waveforms are constant and easily manipulated [42], [43].…”

Section: A Power Inductorsmentioning

confidence: 89%

Differential Inverters: A General Design Procedure Integrating a Novel Power Losses Modeling Approach for Utilized DC-DC Modules at Different Modulation Schemes

Shawky

Aly²,

Rodríguez³

2023

IEEE Access

View full text Add to dashboard Cite

Differential inverters develop the PWM of internal DC-DC modules by correlating fundamental frequency of load with high switching frequency to maintain inherent characteristic operation and achieve pure higher/lower AC output voltage with smaller size. However, no generalized design method applicable for many DC-DC modules topologies has been demonstrated up till now, to realize efficient differential inverter with accurate power loss prediction. Consequently, a generic design process utilizing one parameter (modulation index gain) as well as new power losses modeling for all elements, such as switching devices, inductors, capacitors, and extra, are proposed in this paper. Novel decoupling between both operational frequencies through a two-stage calculation algorithm is the main attractive feature where, all losses are calculated based on the switching frequency of DC-DC modules then all losses are averaged accordingly over fundamental frequency. Doing this obtains RMS currents in terms of actual duty cycle and other parameters without adding complex mathematics at various PWM schemes, such as SVMS, CMS and DMS. The proposed work is simultaneously employed for many DC-DC modules topologies and verified in simulation and experiments using 0.7kW 50kHz isolated SEPIC-based DC-DC modules, as a case study. The error into actual duty cycle is decreased from 5.19% to 2.47% in the case of CMS at different power ratings. Further, it is reduced to 2.64% and 1.86% for SVMS and DMS, respectively. Finally, smart foretelling of power loss in each element of differential inverter is considered crucial for future efficiency improvement.

show abstract

Section: A Power Inductorsmentioning

confidence: 89%

Differential Inverters: A General Design Procedure Integrating a Novel Power Losses Modeling Approach for Utilized DC-DC Modules at Different Modulation Schemes

Shawky

Aly²,

Rodríguez³

2023

IEEE Access

View full text Add to dashboard Cite

show abstract

“…Due to the presence of transformers, electrical energy needs to be converted into magnetic energy and then back into electrical energy to achieve grid connection. This process inevitably results in some energy losses [8]. On the other hand, nonisolated topology structures do not experience energy losses due to electromagnetic conversion.…”

Section: Introductionmentioning

confidence: 99%

An improved modulation method for low common-mode current non-isolated series simultaneous power supply dual-input inverters for new energy generation applications

Sun,

Jiang

2024

Electr Eng

View full text Add to dashboard Cite

Multi-input power supply systems are mostly used in the field of combined power supply of multiple new energy sources, and multi-input inverters play an important role in multi-input power supply systems, but multi-input inverters have the problem of common mode currents. This paper proposes an improved modulation method for a non-isolated series simultaneous power supply type dual-input inverter with low common-mode current for new energy generation applications. The design of a simulation circuit based on the corresponding dual-input inverter shows that this type of inverter can suppress the commonmode current below 30mA and has the advantage of low switching stress, providing an effective single-stage inverter solution for the combined power supply of multiple new energy sources.

show abstract

An improved modulation method for low common-mode current non-isolated series simultaneous power supply dual-input inverters for new energy generation applications

Sun

Jiang

2023

Preprint

View full text Add to dashboard Cite

Multi-input power supply systems are mostly used in the field of combined power supply of multiple new energy sources, and multi-input inverters play an important role in multi-input power supply systems, but multi-input inverters have the problem of common mode currents. This paper proposes an improved modulation method for a non-isolated series simultaneous power supply type dual-input inverter with low common-mode current for new energy generation applications. The design of a simulation circuit based on the corresponding dual-input inverter shows that this type of inverter can suppress the common-mode current below 30mA and has the advantage of low switching stress, providing an effective single-stage inverter solution for the combined power supply of multiple new energy sources.

show abstract

Power loss model and efficiency analysis of grid-connected seven-switch boost-type photovoltaic current source inverter using two power switches configurations

Cited by 3 publications

References 31 publications

Differential Inverters: A General Design Procedure Integrating a Novel Power Losses Modeling Approach for Utilized DC-DC Modules at Different Modulation Schemes

Differential Inverters: A General Design Procedure Integrating a Novel Power Losses Modeling Approach for Utilized DC-DC Modules at Different Modulation Schemes

An improved modulation method for low common-mode current non-isolated series simultaneous power supply dual-input inverters for new energy generation applications

An improved modulation method for low common-mode current non-isolated series simultaneous power supply dual-input inverters for new energy generation applications

Contact Info

Product

Resources

About