TRANSIENT ANALYSIS OF GROUNDING SYSTEM IN A WIND FARM BASED ON ANTENNA THEORY USING FAST RELAXED VECTOR FITTING METHOD

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Mahmoudian Mehrdad; GHOLAMI AHMAD; Sadrpour Seyed Mojtaba; Arekhi Abdolghani

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Seminar Paper

Paper Information

Seminar: INTERNATIONAL POWER SYSTEM CONFRENCE
Year:2014 | Issue:29

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Title

TRANSIENT ANALYSIS OF GROUNDING SYSTEM IN A WIND FARM BASED ON ANTENNA THEORY USING FAST RELAXED VECTOR FITTING METHOD

Author(s)

Mahmoudian Mehrdad | GHOLAMI AHMAD | Sadrpour Seyed Mojtaba | Arekhi Abdolghani | Issue Writer Certificate

Keywords

ANTENNA THEORY

ELECTROMAGNETIC TRANSIENT ANALYSIS

EMTP

GROUNDING SYSTEM

VECTOR FITTING

WIND FARM

Abstract

AS WIND FARMS GROW RAPIDLY THROUGHOUT THE WORLD, THE GROUNDING SYSTEM AND GROUND IMPEDANCE OF WIND TURBINE TOWERS UNDER TRANSIENTS HAVE GOT MORE IMPORTANT. AS A MATTER OF FACT, AN EXACT MODEL TO TESTIFY DYNAMIC PROPERTIES OF GROUNDING SYSTEM SHOULD REPRESENT NONLINEAR EFFECTS OF SOIL IONIZATION AND BE FREQUENCY DEPENDENT. SOME NEW RESEARCHES CONDUCTED IN THIS ISSUE, ALL ARE BASED CIRCUIT THEORY WHICH DOES NOT ALLOW FOR ACCURATE ANALYSIS OF AFOREMENTIONED BEHAVIORS. THIS PAPER HAS COME TO EXPRESS A NEW APPROACH TO MODEL ANY GROUNDING SYSTEM ONLY BY FEW RLC BRANCHES IN WIDE FREQUENCY RANGE. A NEW MODEL AND SOME SIMPLE FORMULA THAT IS RECOMMENDED IN THIS PAPER, REPRESENT ALL EFFECTS OF TRANSIENT PHENOMENA OF LIGHTNING STRIKES AND ALL ANALYSIS HAVE GOT MORE EASIER THAN OTHER APPROACH. BY USING THIS METHOD, THERE’S NO DIFFERENCE BETWEEN THOSE GROUNDING SYSTEM BURIED IN CYLINDRICAL SOILS OR CONICAL ONE, MULTI-LAYER OIL OR NOT, HUMID SOIL OR NOT AND SO ON, THEY ALL ARE AVAILABLE FOR TRANSIENT ANALYSIS. THEN THE OUTPUTS OF ANTENNA THEORY AND RECOMMENDED METHOD ARE COMPARED AND FINALLY THE RLC BRANCHES ARE IMPLEMENTED IN EMTP AND GET ANALYZED. SO IT’S POSSIBLE TO EVALUATE POWER SYSTEMS UNDER LIGHTNING STRIKES WITH PRESENCE OF WIND FARMS.

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APA: Copy

Mahmoudian, Mehrdad, GHOLAMI, AHMAD, Sadrpour, Seyed Mojtaba, & Arekhi, Abdolghani. (2014). TRANSIENT ANALYSIS OF GROUNDING SYSTEM IN A WIND FARM BASED ON ANTENNA THEORY USING FAST RELAXED VECTOR FITTING METHOD. INTERNATIONAL POWER SYSTEM CONFRENCE. SID. https://sid.ir/paper/938942/en

Vancouver: Copy

Mahmoudian Mehrdad, GHOLAMI AHMAD, Sadrpour Seyed Mojtaba, Arekhi Abdolghani. TRANSIENT ANALYSIS OF GROUNDING SYSTEM IN A WIND FARM BASED ON ANTENNA THEORY USING FAST RELAXED VECTOR FITTING METHOD. 2014. Available from: https://sid.ir/paper/938942/en

IEEE: Copy

Mehrdad Mahmoudian, AHMAD GHOLAMI, Seyed Mojtaba Sadrpour, and Abdolghani Arekhi, “TRANSIENT ANALYSIS OF GROUNDING SYSTEM IN A WIND FARM BASED ON ANTENNA THEORY USING FAST RELAXED VECTOR FITTING METHOD,” presented at the INTERNATIONAL POWER SYSTEM CONFRENCE. 2014, [Online]. Available: https://sid.ir/paper/938942/en

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