Hardware-In-the-Loop Simulation of Smart Hybrid Inverter: A comparison of online simulation and practical results

Zeni, Vitor Seger; Munaretto, Lucas; Chaves, Henrique; Pont, Neilor Colombo Dal; Gruner, Víctor Ferreira; Finamor, Gustavo

doi:10.1109/pvsc45281.2020.9300809

Cited by 6 publications

(4 citation statements)

References 7 publications

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“…Due to HIL's capability to offer hazard-free devices as well as a rapid prototyping process in engineering research, this technique has shown great promise for both industry and academia [4,8,31,32,40,50,[59][60][61][62][63][64][65][66][67]. HIL tests could provide a safe test environment when a high-power system is involved, like TPSS.…”

Section: Hil Experimental Resultsmentioning

confidence: 99%

“…Moreover, HIL is a widely used modern technology for designing and validating power electronic systems. HIL has been utilized to test power converters to solve the issues of difficulty, complexity, and cost [59,61,[63][64][65]67]. Results have shown that the HIL verification is an attractive tool for evaluating the passive-filtered grid-connected inverter [8,31,32,40,63,65].…”

Section: Hil Experimental Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Enhancing power quality of high‐speed railway traction converters by fully integrated T‐LCL filter

Al-Barashi

Meng

Liu

et al. 2022

IET Power Electronics

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Modulating the traction converters produces current harmonics at the switching frequencies and their multiples. These harmonics should be minimized to meet the network specifications. The LC‐trapped filters, tuned to these frequencies, can easily meet this requirement, but the existing applicable trap filters have not been studied with the traditional traction system topologies. Thus, this paper presents a trapped LCL filter with an LC resonator on the converter side, called a fully integrated T‐LCL filter, for the traction power supply system. The model and analysis reported in this research demonstrate that the presented filter has several advantages, which can be summarized by: reducing the size by winding many coils through magnetic integration, attenuating the switching frequency and its multiple harmonics that reduce the current total harmonic distortion, assuring durability against the filter parameters differences, and preserving system stability under transient conditions. The proposed filter can become a promising trap filter based on these advantages. Simulation models of an ac/dc single‐phase traction rectifier with the proposed filter were created and tested in MATLAB/Simulink, verifying its superiority. Finally, the filter is validated by performing hardware‐in‐the‐loop experiments.

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Section: Hil Experimental Resultsmentioning

confidence: 99%

Section: Hil Experimental Resultsmentioning

confidence: 99%

Enhancing power quality of high‐speed railway traction converters by fully integrated T‐LCL filter

Al-Barashi

Meng

Liu

et al. 2022

IET Power Electronics

View full text Add to dashboard Cite

show abstract

“…This method has shown considerable potential for both industry and academics because of HIL's ability to provide riskless equipment and a speedy prototype procedure in research of engineering [4,8,11,31,35,60,[75][76][77][78][79][80][81][82][83][84]. If a system with high power, such as TPSS, would be included, HIL tests may offer a safe testing environment.…”

Section: Plos Onementioning

confidence: 99%

“…In addition, HIL is a contemporary technology frequently utilized for power electronic system design and validation. To address the problems of difficulty, complexity, and expense, HIL has been used to test power converters [75,[77][78][79][80][81]. Results have demonstrated that HIL verification is a useful method for assessing the grid-connected passive-filtered inverter [8,11,31,35,78,79,83].…”

Section: Plos Onementioning

confidence: 99%

High-frequency harmonics suppression in high-speed railway through magnetic integrated LLCL filter

Al-Barashi,

Wang,

Bhutta

2024

PLoS ONE

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The traction converter modulation generates switching-frequencies current harmonics. The trapped filters can eliminate these switching harmonics, reducing total inductance and filter size. Nonetheless, in comparison with the typical inductor-capacitor-inductor (LCL) filter, the trap inductor needs a larger magnetic core. Moreover, the trapped filter has not been analyzed in the traction systems. This paper proposes a magnetic integrated inductor-trap-inductor (LLCL) filter to decrease the filter’s size and investigate its application in traction converters. In fact, the application range of this filter is quite broad, and it can be used in various electrical power systems, including industrial power systems, renewable energy systems, transportation systems, and building power systems. The LC-trap may be formed by connecting the equivalent trap inductor, introduced through the magnetic coupling between inverter-side and grid-side inductors, in series with the filter capacitor. Furthermore, for H-bridge unipolar pulse width modulation (PWM) traction converters, the prominent switching harmonics are concentrated at the double switching frequencies. Therefore, the stability zone is expanded by moving the resonance above the Nyquist frequency. The presented filter’s features and design are thoroughly analyzed. The proposed method is finally validated by the MATLAB/Simulink simulation and hardware-in-the-loop (HIL) experimental results. Compared to the discrete windings, the integrated ones can save two magnetic cores. Furthermore, the proposed filter can meet IEEE criteria with 0.3% for all the harmonics and total harmonic distortion (THD) of 2.15% of the grid‐side current.

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Magnetic integrated double-trap filter utilizing the mutual inductance for reducing current harmonics in high-speed railway traction inverters

Al-Barashi,

Wang,

Lan

et al. 2024

Sci Rep

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Current harmonics are generated at the switching frequency and its multiples when the traction converters are modulated. To address this, multi-trap filters are introduced, which are capable of selectively eliminating these specific harmonics to the limits set by IEEE 519-2014. This targeted removal significantly reduces the need for high total inductance, thereby allowing for a more compact filter design. Comparatively, to traditional inductor-capacitor-inductor (LCL) filters, more magnetic cores are needed for trap inductors. Furthermore, the traction systems have not been examined in conjunction with multi-trap filters. To reduce the filter size and investigate its application in traction converters, this paper presents an integrated double-trap LCL (DTLCL) filter. A tiny capacitor is connected in parallel with the grid-side inductor to form one LC-trap. In addition, another LC-trap is formed by connecting the equivalent trap inductor, introduced through the magnetic coupling between inverter-side and grid-side inductors, in series with the filter capacitor. The presented filters' features are thoroughly analyzed, and the design method has been developed. Finally, the simulation and hardware-in-the-loop (HIL) experiment results validate the proposed method's viability and efficacy. Compared to the discrete windings, the integrated ones enable a size decrease of two cores. Furthermore, the proposed filters can meet IEEE 519-2014 criteria with 0.3% for all the current switching harmonics and total harmonic distortion (THD) of 2.36% of the grid‐side current.

show abstract

Hardware-In-the-Loop Simulation of Smart Hybrid Inverter: A comparison of online simulation and practical results

Cited by 6 publications

References 7 publications

Enhancing power quality of high‐speed railway traction converters by fully integrated T‐LCL filter

Enhancing power quality of high‐speed railway traction converters by fully integrated T‐LCL filter

High-frequency harmonics suppression in high-speed railway through magnetic integrated LLCL filter

Magnetic integrated double-trap filter utilizing the mutual inductance for reducing current harmonics in high-speed railway traction inverters

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