DC link capacitor selection for DC-DC converters

Rachev, Emil; Petrov, Vladislav

doi:10.1109/bulef51036.2020.9326085

Cited by 4 publications

(1 citation statement)

References 9 publications

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“…A suitably designed filter reduces the higher harmonics of the current flow while power semiconductor switches operate in high-frequency switching mode. For higher-power applications, in addition to the appropriate choice of filter type, the price and overall total harmonic distortion (THD) are also important factors during the design [26,27]. For these facts, L, LC, or LCL filters are usually connected between the AC grid and the power semiconductor converters; see Figure 8.…”

Section: Filter Designmentioning

confidence: 99%

Global Simulation Model Design of Input-Serial, Output-Parallel Solid-State Transformer for Smart Grid Applications

et al. 2023

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This paper provides an overview of an early attempt at developing a simulation model on a solid-state transformer (SST) based on input-serial and output-parallel (ISOP) topology. The proposed SST is designed as a base for a smart grid (SG). The paper provides a theoretical review of the power converters under consideration, as well as their control techniques. Further, the paper presents a simulation model of the proposed concept with a PLECS circuit simulator. The proposed simulation model examines bidirectional energy flow control between the medium-voltage AC grid and DC smart grid, while evaluating power flow efficiency and qualitative indicators of the AC grid. After the completion of design verification and electrical properties analysis by the PLECS simulation models, the synthesis offers recommendations on the optimal layout of the proposed SST topology for smart grid application.

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Section: Filter Designmentioning

confidence: 99%

Global Simulation Model Design of Input-Serial, Output-Parallel Solid-State Transformer for Smart Grid Applications

et al. 2023

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DC Link Capacitor Selection for Battery Powered Low Voltage 10 kW PMSM Drives

Kyuchukov,

Rachev,

Petrov

2023

2023 15th Electrical Engineering Faculty Conference (BulEF)

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Minimization of the Decoupling Circuit (DC-Link) in Induction Motors

et al. 2023

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There is currently a growing interest in replacing the internal combustion engine with electric motors in transportation applications. However, there are different problems related to electric motors for this application. One of them is the oversizing of the energy decoupling system since to ensure that the decoupling capacitor can store the power fluctuations, the capacitance required by the system is usually oversized. This leads to preference for the use of capacitors with construction technologies that have a lower lifetime than the remaining elements of the propulsion system, directly affecting the reliability of the system. In this article, the energy flow handled by the decoupling capacitor is analyzed considering the critical case of operation of an induction motor to minimize the capacitance required by the propulsion system; emphasizing the conditions that generate a higher energy return, from the motor mode of the electric machine to the decoupling capacitor. From the energy analysis, an equation for the capacitor calculation is obtained, involving proportionality factors that relate to the different operating powers, reducing up to 62.2% of the capacitance value required by the decoupling system, under conditions of maximum energy return in motor mode, compared to existing equations in the literature.

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DC link capacitor selection for DC-DC converters

Cited by 4 publications

References 9 publications

Global Simulation Model Design of Input-Serial, Output-Parallel Solid-State Transformer for Smart Grid Applications

Global Simulation Model Design of Input-Serial, Output-Parallel Solid-State Transformer for Smart Grid Applications

DC Link Capacitor Selection for Battery Powered Low Voltage 10 kW PMSM Drives

Minimization of the Decoupling Circuit (DC-Link) in Induction Motors

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