Generation of Abnormal Harmonics in High-Voltage AC-DC Power Systems
- 1 March 1968
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. PAS-87 (3) , 873-883
- https://doi.org/10.1109/tpas.1968.292204
Abstract
The possibility of abnormal harmonic generation in an ac system feeding a converter load is examined from the standpoint of automatic control systems used in modern HVDC transmission systems. It is shown that with certain types of automatic controls, the firing angles of converter valves may sustain some errors, which in turn could generate abnormal harmonic currents in the three- phase ac system feeding the converter. A criterion for predetermining the type and extent of abnormal harmonic generation is defined, and numerical examples given. Methods of reducing abnormal harmonic generation are discussed, and some experimental data supporting the theoretical calculations are also included.Keywords
This publication has 2 references indexed in Scilit:
- Harmonic instability between controlled static convertors and a.c. networksProceedings of the Institution of Electrical Engineers, 1967
- Unbalanced Converter OperationIEEE Transactions on Power Apparatus and Systems, 1966