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A CASE STUDY OFA CASE STUDY OF

CONTINGENCY ANALYSISCONTINGENCY ANALYSISON WRLDCON WRLDC

RATHORE SUMIT K.RATHORE SUMIT K.

M.E-1M.E-1stst -POWER SYSTEM-POWER SYSTEM

B.V.M VVNAGARB.V.M VVNAGAR

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SYSTEM SECURITYSYSTEM SECURITY

System Monitoring.

Security constrained optimal power flow.

Contingency Analysis.

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OPERATING STATE OF POWER SYSTEMOPERATING STATE OF POWER SYSTEM

NORMAL STSTE

RESTORATIVE STATE EMERGENCY STATE

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CONTINGENCY????CONTINGENCY????

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CONSTRAINED IN SYSTEMCONSTRAINED IN SYSTEM

maxmin ViViVi

maxkiki

Line flow (Branch flow)

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APPLICATION IN FIELDAPPLICATION IN FIELD

WRLDC (Western Regional Load Dispatch Centre)

successful implemented POWER NETWORKANALYSIS(PNA) sub system of ENERGY

MANAGEMENT SYSTEM(EMS) after proper

tuning of STATE ESTIMATOR(SE).

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About WRLDC (Western Regional Load Dispatch Centre)

Comprises states of GUJARAT, MAHARASTRA, MP,

CHHATTISGARH, GOA, DADRA AND NAGAR

HAVELI, DAMAN AND DIU.(WESTERN REGION40944 MW).

Private central sector of NTPC at KORBA,VINDHYACHAL, KAWAS & GANDHAR and nuclear.

(EASTERN REGION)

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MAP OF WESTERN REGIONMAP OF WESTERN REGION

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HV LINES LOACATION

400kV Chandrapur-Parli 1458MW-21degree-limit 25degree

400kV Koradi-Bhusawal 1011MW-21degree-23degree

400kV Itarsi-Khandwa-Dhule 1101MW-18degree-21degree

On MAY-08 western region catering a demand of 25000MW at

11:30hrs.

ER-WR-1200MW

NR-WR-1400MW

WR-SR-750MW

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Information ObtainedInformation Obtained

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EMS database for western region

591 buses

230 generators

603 loads 623 lines (Up to 132kV level)

10486 breakers

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PREDEFINED CASE LIST AT WRLDC

400kV Chandrapur-Parli S/C outage

400kV Chandrapur-Parli D/C outage

400kV Koradi-Bhusawal S/C outage

400kV Koradi-Bhusawal D/C outage

400kV Itarsi-Khandwa S/C outage

400kV Itarsi-Khandwa D/C outage

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CONTINGENCY CASESCONTINGENCY CASES

Acceptable cases.

Cases with overload, over voltage etc.

Not Converged case. Islanded cases.

Multiple contingency cases.

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THANK YOU