Gross error identification in power system-a new method
- Resource Type
- Conference
- Authors
- Mangalvedekar, H.A.; Varwandkar, S.D.
- Source
- Fourth IEEE Region 10 International Conference TENCON TENCON '89. Fourth IEEE Region 10 International Conference. :782-785 1989
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Power, Energy and Industry Applications
Robotics and Control Systems
Power systems
Kirchhoff's Law
State estimation
Testing
Power system measurements
Measurement errors
Power measurement
Electric variables measurement
Jacobian matrices
Condition monitoring
- Language
The limitations of the method of residues in detecting the grossly erroneous measurements are outlined. An entirely different approach is taken to obtain a residue-like quantity for network parameters. This residue-like quantity, net parameter deviation after sensitivity correction (NPDSC), is related to measurement errors through diagonal matrices. This is unlike the case in the conventional residue method where the corresponding relation is given by a non-diagonal matrix. The masking effect is thus eliminated. Another important feature of the method is that it can test a given arbitrary set of measurements for its validity. Critical measurements can also be tested successfully. The method is applied to a six bus power system example and its effectiveness indicated.ETX