Flashover voltage computation of porcelain insulators under positive polarity lightning impulse voltages

Shanmugam, G.; Kalapati, Surendra; Karakad, Sunitha

doi:10.1049/iet-smt.2018.5605

Cited by 7 publications

(2 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Equation (7) presents the voltage across primary coil. Surge gap : Surge gap in conversion path plays a significant role to convert impulse voltage into a storable form. This gap force impulse current to generate maximum magnetic flux in the primary coil.

V_{b_{2}} goodbreak= \frac{i_{e} {Pd}_{g}}{\ln ((), i_{s} {Pd}_{g}) - \ln true(\ln ((), 1 goodbreak+ \frac{1}{γ_{s}})}

Equation (8) can be formulated from Paschen's law 35‐37 to calculate the breakdown voltage of the surge gap. This breakdown voltage helps to adjust the gap distance and core width of the air‐core transformer.

V_{g_{2}} goodbreak= \frac{K_{t} normalΔ}{\int_{- \infty}^{t} i_{sg} δ t^{'}} goodbreak\times i_{sg}

Another important parameter for surge gap is temporal dependance of electrical voltage of spark.…”

Section: Impulse Island Controllermentioning

confidence: 99%

See 1 more Smart Citation

Mathematical modeling of impulse island controller to safely store the energy from high‐voltage lightning impulse

Jana

Biswas⃰

Sain³

2022

Energy Storage

View full text Add to dashboard Cite

Extricating the energy from lightning impulse is very difficult for researchers due to the uncontrollability of hazardous and intermittent parameters. This paper proposed a mathematical method to island the lightning impulse to provide safety for the impulse storage system. The proposed model also can intelligently force the impulse to be extricated for the conversion system of the lightning energy storage device. This islanding controller is designed to increase the efficiency and safety of the storage system. Six essential parameters, that is, breakdown voltage, current dependency, spark channel radius, spark channel conductivity, coil inductance, and coil voltage, are considered to design the mathematical model. These parameters are formulated to record the responses of the proposed controller. All the equations are validated by using state of the art experiments and prototype hardware setup. The proposed method, mathematical model, and analyzed responses may assist lightning researchers in advancing lightning energy harvesting.

show abstract

V_{b_{2}} goodbreak= \frac{i_{e} {Pd}_{g}}{\ln ((), i_{s} {Pd}_{g}) - \ln true(\ln ((), 1 goodbreak+ \frac{1}{γ_{s}})}

V_{g_{2}} goodbreak= \frac{K_{t} normalΔ}{\int_{- \infty}^{t} i_{sg} δ t^{'}} goodbreak\times i_{sg}

Another important parameter for surge gap is temporal dependance of electrical voltage of spark.…”

Section: Impulse Island Controllermentioning

confidence: 99%

“…Equation ( 8) can be formulated from Paschen's law [35][36][37] to calculate the breakdown voltage of the surge gap. This breakdown voltage helps to adjust the gap distance and core width of the air-core transformer.…”

Section: Conversion Pathmentioning

confidence: 99%