Single Phase PWM Rectifier in Traction Application

Grman, L'ubomír; Hraškp, Martin; Kuchta, Jozef; Buday, Jozef

doi:10.2478/v10187-011-0033-z

Cited by 15 publications

(5 citation statements)

References 5 publications

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“…The principle and structures of resonant controllers (RCs) have been discussed in other studies [24,25]. The RC is well-known as an AC controller which can remove a steady-state error in any frequency.…”

Section: Proposed Hybrid Controllermentioning

confidence: 99%

A New Hybrid Controller for Standalone Photovoltaic Power System with Unbalanced Loads

Pichan

Rastegar

2020

International Journal of Photoenergy

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Due to several problems such as global concern about environmental pollution, renewable energy has become an alternative source of energy. In situations such as small local loads far from the main grid, standalone hybrid power system (HPS) with inevitable unbalanced loading condition is preferred for the global grid. The four-leg inverter with a simple as well as well-performance control method is a good solution to support this condition. In this paper, with respect to the average and discretized model of the inverter, a new digital controller is proposed in the abc reference frame to control the load voltages. The proposed controller offers several advantages such as simplicity, fast dynamic response, no need for transformation among different reference frames, and full compatibility with digital implementation which makes it as an excellent option to be employed in such systems. In addition, a new hybrid controller is also proposed which not only has the advantages of the proposed digital controller but also shows superior performance under nonlinear loads without imposing a high computational burden. To verify the effectiveness of the two proposed controllers, several simulation and experimental tests under different scenarios on a 3 kW setup are performed.

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Section: Proposed Hybrid Controllermentioning

confidence: 99%

A New Hybrid Controller for Standalone Photovoltaic Power System with Unbalanced Loads

Pichan

Rastegar

2020

International Journal of Photoenergy

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“…When we know the datasheet values of parameters which are necessary for determination of K GS and Kloss, then we can calculate the FOM HS and FOM ZVS which are listed in Table II. As can be seen, the lowest value of FOM parameter is for GaN transistor GS66508T (the lower the value is the better performance of transistor may be achieved). The hard switching performance was already done, whereby detailed information can be seen at [13]- [16]. The relevancy of FOM parameter will be finally evaluated in the way of efficiency (one of qualitative indicator) investigation of proposed LLC converter.…”

Section: Evaluation Of Fom Of Selected Diodes and Transistorsmentioning

confidence: 99%

Improving qualitative parameters of LLC converter using a perspective semiconductor and magnetic components

Kozacek

Frivaldský

Jaros

2016

2016 International Conference on Applied Electronics (AE)

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This paper has been realized in order to show simplified design procedure on how to meet the standards for dc-dc converters, which are being constantly increased. The paper deals with improvement of qualitative parameters of LLC converter. Using evaluations methods Figure of Merit, we select optimal components suitable for high-frequency applications with high power density, where we want elevate the significance of perspective of semiconductors GaN, SiC and modern magnetic materials. The main advantage of using FoM assessment technique for certain system's components is the elimination of simulation and physical experiments for effectivity evaluation. In conclusion, a comparison of converter considering standards ENERGY STAR defining the efficiency parameters of the converter at different load is provided. After it also comparisons of the efficiency using diode rectifier and synchronous rectifier on the secondary site are given.

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“…Substituting (9) and (10) into equation (8) and deriving parameter ΔB, the formulation for calculating of optimal value of induction ripple for given core geometry can be obtained:…”

Section: Dependency Of Transformer Losses On the Ripple Of Magnetic Imentioning

confidence: 99%

Design Methodology of a High-Frequency Transformers in Order to Increase Qualitative Indexes of Converters

Frivaldský

Špánik

Kozacek

et al. 2016

Proceedings of the 2016 International Conference on Mechatronics, Control and Automation Engineering

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Energy efficiency and power density become main qualitative indexes of power electronic systems. This paper deals with derivation of the optimal design of high frequency transformer, which forms very important part of the dc-dc converter. Design procedure focuses on the possibilities of converter´s power density and efficiency increase. In order to meet upcoming regulation and standards for dc-dc converter efficiency, the influence of transformer´s core geometry is investigated. Precise simulation model of dc-dc converter, together with exact simulation model of transformer is used for evaluation. Finally, simulation results are provided in order to investigate the influence of core geometry on the efficiency of proposed converter.

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Single Phase PWM Rectifier in Traction Application

Cited by 15 publications

References 5 publications

A New Hybrid Controller for Standalone Photovoltaic Power System with Unbalanced Loads

A New Hybrid Controller for Standalone Photovoltaic Power System with Unbalanced Loads

Improving qualitative parameters of LLC converter using a perspective semiconductor and magnetic components

Design Methodology of a High-Frequency Transformers in Order to Increase Qualitative Indexes of Converters

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