Table: DISPATCHCASESOLUTION_BNC

DISPATCHCASESOLUTION_BNC

Name

DISPATCHCASESOLUTION_BNC

Comment

DISPATCHCASESOLUTION_BNC was discontinued on 30 September 2009. Prior: DISPATCHCASESOLUTION_BNC is the key data to indicate when a binding intra-regional network constraints (BNC) re-run actually occurred.


Description

DISPATCHCASESOLUTION_BNC was discontinued on 30 September 2009.

In accordance with the "Arrangements for Managing Risks Associated with Transmission Network Congestion" set of rule changes the Dispatch Binding Network Constraints re-run was discontinued on September 30, 2009.

Source

The occurrences of Over-constrained dispatch (OCD) or binding intra-regional network constraints (BNC) re-runs are ad hoc, with significant dependencies on the configuration or events in the physical power system. Potentially updated every 5 minutes.

Volume

Rows per day: ~72

Mb per month: 25% of DISPATCHCASESOLUTION

The estimates on the number of rows are based on a 25% occurrence rate for BNC runs.

Note

Due to the close dependency with the dispatch process, the OCD and BNC data models use a “CaseSolution” key table in the same manner as DISPATCHCASESOLUTION.


Notes

Name

Comment

Value

Visibility

Data in this table is:

Public


Primary Key Columns

Name

INTERVENTION

RUNNO

SETTLEMENTDATE


Index Columns

Name

LASTCHANGED


Content

Name

Data Type

Mandatory

Comment

SETTLEMENTDATE

DATE

X

End date and time of the dispatch interval

RUNNO

NUMBER(3,0)

X

Dispatch run no; always 1

INTERVENTION

NUMBER(2,0)

X

Manual intervention flag

CASESUBTYPE

VARCHAR2(3)

 

always BNC

SOLUTIONSTATUS

NUMBER(2,0)

 

If non-zero indicated one of the following conditions:
* 1 = Supply Scarcity, Excess generation or constraint violations
* X = Model failure

SPDVERSION

NUMBER(10,3)

 

Current version of SPD

STARTPERIOD

VARCHAR2(20)

 

Period identifier of first interval of the case (yyyymmddppp)

NONPHYSICALLOSSES

NUMBER(1,0)

 

Non-Physical Losses algorithm invoked occurred during this run

TOTALOBJECTIVE

NUMBER(27,10)

 

The Objective function from the LP

TOTALAREAGENVIOLATION

NUMBER(15,5)

 

Total Region Demand violations

TOTALINTERCONNECTORVIOLATION

NUMBER(15,5)

 

Total interconnector violations

TOTALGENERICVIOLATION

NUMBER(15,5)

 

Total generic constraint violations

TOTALRAMPRATEVIOLATION

NUMBER(15,5)

 

Total ramp rate violations

TOTALUNITMWCAPACITYVIOLATION

NUMBER(15,5)

 

Total unit capacity violations

TOTAL5MINVIOLATION

NUMBER(15,5)

 

Total of 5 minute ancillary service region violations

TOTALREGVIOLATION

NUMBER(15,5)

 

Total of Regulation ancillary service region violations

TOTAL6SECVIOLATION

NUMBER(15,5)

 

Total of 6 second ancillary service region violations

TOTAL60SECVIOLATION

NUMBER(15,5)

 

Total of 60 second ancillary service region violations

TOTALENERGYCONSTRVIOLATION

NUMBER(15,5)

 

 

TOTALENERGYOFFERVIOLATION

NUMBER(15,5)

 

Total of unit summated offer band violations

TOTALASPROFILEVIOLATION

NUMBER(15,5)

 

Total of ancillary service trader profile violations

TOTALFASTSTARTVIOLATION

NUMBER(15,5)

 

Total of fast start trader profile violations

LASTCHANGED

DATE

 

Last date and time record changed