Harmonic Analysis of Grid Connected Electric Vehicles with Residential Load for Different Filters

Patil, Dinesh; Deepa, K.

doi:10.1109/icses52305.2021.9633964

Cited by 2 publications

(3 citation statements)

References 7 publications

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“…For the FBC approach to TSCC, this strategy was constrained at a lower-frequency switching range [118]. There was a reported issue of synchronism between the converter units due to the triplen harmonics created in the units as a result of variations in the grid voltage, as shown in some of the values obtained for CTHD in [119].…”

Section: Issues With Fbc Techniquementioning

confidence: 99%

“…There was a reported issue of synchronism between the converter units due to the triplen harmonics created in the units as a result of variations in the grid voltage, as shown in some of the values obtained for CTHD in [119]. The strategy may fail to provide the regulation of voltage and frequency to the EV load at the PCC because of the complexity of the controller's structure [118]. Additionally, the report in [118] showed that the effectiveness of active damping, the repetitive controller, and multiple resonant controllers is not guaranteed as a viable option for filter-based control during multiple fast-charging operations [52].…”

Section: Issues With Fbc Techniquementioning

confidence: 99%

“…The strategy may fail to provide the regulation of voltage and frequency to the EV load at the PCC because of the complexity of the controller's structure [118]. Additionally, the report in [118] showed that the effectiveness of active damping, the repetitive controller, and multiple resonant controllers is not guaranteed as a viable option for filter-based control during multiple fast-charging operations [52]. Admittedly, the challenge of finding the exact input signal, which must be applied to the system to achieve a steady-state output within the smallest number of time steps, is a limitation of this strategy, especially when deployed with the PI controller [19].…”

Section: Issues With Fbc Techniquementioning

confidence: 99%

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State-of-the-Art Grid Stability Improvement Techniques for Electric Vehicle Fast-Charging Stations for Future Outlooks

Momoh,

Zulkifli,

Korba

et al. 2023

Energies

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The growing trend for electric vehicles (EVs) and fast-charging stations (FCSs) will cause the overloading of grids due to the high current injection from FCSs’ converters. The insensitive nature of the state of charge (SOC) of EV batteries during FCS operation often results in grid instability problems, such as voltage and frequency deviation at the point of common coupling (PCC). Therefore, many researchers have focused on two-stage converter control (TSCC) and single-stage converter (SSC) control for FCS stability enhancement, and suggested that SSC architectures are superior in performance, unlike the TSCC methods. However, only a few research works have focused on SSC techniques, despite the techniques’ ability to provide inertia and damping support through the virtual synchronous machine (VSM) strategy due to power decoupling and dynamic response problems. TSCC methods deploy current or voltage control for controlling EVs’ SOC battery charging through proportional-integral (PI), proportional-resonant (PR), deadbeat or proportional-integral-derivative (PID) controllers, but these are relegated by high current harmonics, frequency fluctuation and switching losses due to transient switching. This paper reviewed the linkage between the latest research contributions, issues associated with TSCC and SSC techniques, and the performance evaluation of the techniques, and subsequently identified the research gaps and proposed SSC control with SOC consideration for further research studies.

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Section: Issues With Fbc Techniquementioning

confidence: 99%