Power System Operation and Control Quiz

Security control system is a system of

• Manual control

• Integrated automatic control

• Conventional generation control

• Both A and B

Evaluation of generation capacity requirements is a

• Long-term planning of system security

• Operational planning of system security

• On-line operation application of system security

• All of these

The operational planning of system security control includes

• Spinning reserve requirements determination

• Scheduling of hourly generation as well as interchange scheduling

• Outage dispatching of transmission lines and transformers

• All of these

The monitoring and estimation of operating state of the system and evaluation of SSS state, transient,and dynamic securities are the applications of

• On-line operation of security control system

• Operational planning of security control system

• Long-term planning of security control system

• All of these

Security analysis is the determination of the security of a system

• Based on a next-contingency set

• Involves verifying the existence of post-contingency states

• Involves verifying the normalcy of post-contingency states

• All of these

Non-existence of even one of the post contingency states or emergency nature of an existing post-contingency state indicates

• Security of current state

• Security of previous state

• Insecurity of current state

• Insecurity of previous state

In SSS analysis, the next contingencies to be considered are

• Outages of lines or transformers or generators

• Faults with or without reclosing

• Circuit breaker operation or failure to clear the fault

• Loss of generation

Security enhancement involves

• On-line decisions aimed at maintaining the level of security

• A collection of control actions aimed at the elimination of security constraint violations

• Failure of even one of post-contingencies

• Both A and B

For getting quick on-line solution to a security -constrained optimization problem, the technique used is

• Dual linear programming technique using linearized model

• Successive linear programming technique using linearized model

• Both A and B

• None of these

State estimation process requires the measurement of

• Real and reactive-power flows in transmission lines

• Real and reactive-power injections at the buses

• Only reactive power absorbed by load

• Both A and B