Thyristor converter system with higher harmonics suppression

Details Thyristor converter system with higher harmonics suppression Thyristor converter system with higher harmonics suppression

1992-09-22

1994-09-13

Sterrett, Jeffrey L.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363 44, 363128, H02J 102

Patent

active

053474414

ABSTRACT:
A semi-conductor bridge thyrister converter circuit for converting AC power into DC power with suppression of the higher harmonics generated by the circuit including a semi-conductor converter circuit, a control circuit, and instrument transformers for measuring the voltages and the currents at the source and the load side at a node. On the basis of the outputs of these transformers, the control circuit controls the control delay angle and the overlap angle of the thyristers of the semi-conductor converter circuit such that higher harmonics generated by the converter current are reduced to a minimum as seen from the power system side.

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Kimbark; "Direct Current Transmission"; vol. I, Dec. 1971; pp. 295-313.
Peng et al.; "A Study of Active Filters Using Quad-Series Voltage-Source PWM Converters for Harmonic Compensation", 18th IEEE Power Electronics Specialists Conference; Dec. 1987; pp. 204-212.

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