The surge corona discharge

Davis, Richard Beale; Cook, R.W.E.; Standring, W.G.

doi:10.1049/pi-c.1961.0031

Cited by 24 publications

(4 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the lightning overvoltage analysis, the charge–voltage curves ( q – u curves) are usually employed to take account of the corona effect. Measurement investigation [1–5] and model computation [6–11] were made for the q – u curves. So far the distortion and attenuation of lightning overvoltage surges are always calculated on the basis of the q – u curves under double exponential impulses, no matter what the surge waveforms are.…”

Section: Introductionmentioning

confidence: 99%

Modelling of the corona characteristics under damped oscillation impulses

Huang

Zhang

Xiao

2016

IET Generation, Transmission & Distribution

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Modelling of the corona characteristics under damped oscillation impulses

Huang

Zhang

Xiao

2016

IET Generation, Transmission & Distribution

View full text Add to dashboard Cite

“…The traditional approach is only suitable for modeling of the q-u curves under double exponential surges [20]. It introduced the corona charge q C by subtracting the induced charge C 0 u from the total charge q [20,22,23], as illustrated in Figure 5. The corona current is described by:…”

Section: Modeling Of Corona Q-u Curvesmentioning

confidence: 99%

Lightning Surge Analysis for Overhead Lines Considering Corona Effect

Zhang

Huang

2021

Applied Sciences

View full text Add to dashboard Cite

Corona discharge characteristics are measured in a corona cage. The difference is found between the q–u curves under double exponential and damped oscillation surges. The behavior of the minor loops is revealed for the q–u curves under positive and negative damped oscillation surges. An extended improvement is made on the traditional approach for modeling of the q–u curves under damped oscillation surges. The extended approach has the capability of describing the complicated trajectory feature of the minor loops. On the basis of the extended approach, an efficient method is proposed for performing lightning surge analysis of overhead lines considering the corona effect. In the proposed method, an overhead line with corona is divided into a certain number of line segments. Each segment is converted into a circuit unit consisting of a non-linear branch and a linear circuit. With these circuit units connected in sequence, a complete equivalent circuit is constructed for the overhead line with corona. The transient responses can be obtained from the solution to the equivalent circuit. Then, the calculated results are compared with the field test results on a test overhead line.

show abstract

“…The instantaneous total current may be split into a resistive component i , and a capacitive component i,. At any instant, the total capacitance C(v) is given by (1) and the total i ( t ) by ( 2 ) dv…”

Section: Corona Equivalent Circuitmentioning

confidence: 99%

Studies on modeling corona attenuation of dynamic overvoltages

Maruvada

Nguyen

Hamadani-Zadeh

1989

IEEE Trans. Power Delivery

View full text Add to dashboard Cite

An ezperimental and theoretical study is presented in this paper on the corona charact&istics of conductor h n d l e s under dynaaic .overvoltages. Measurements have been made in the outdoor test cages of Institut de recherche d'Eydro-QuCbec (IRBQ) on two bundles, under conditions of fair weather and heavy rain, for steady 60 Ez V O h~6 3 as welt as dynamic overvoltages. Based on the data on corona currents and fosqes obtained, a nonlinear resistahce modelbf corona is proposed for attenuation studies. The Sulieiu model for corona, originally, developed for unipolar impulses, has been also adopted for dynamic ouervok ages. Both these corona models are used to study the influence of corona on the dynamic overvoltages developed,during line energisatioa and load shedding of a single phase line.

show abstract

The surge corona discharge

Cited by 24 publications

References 5 publications

Modelling of the corona characteristics under damped oscillation impulses

Modelling of the corona characteristics under damped oscillation impulses

Lightning Surge Analysis for Overhead Lines Considering Corona Effect

Studies on modeling corona attenuation of dynamic overvoltages

Contact Info

Product

Resources

About