Method for operating a line

Details Method for operating a line Method for operating a line

1998-07-07

2000-05-30

Leja, Ronald W.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

361 18, H02H 326

Patent

active

060697792

ABSTRACT:
A method is specified for operating a multiphase line which is included in a transmission network and can be disconnected if faults occur, for the transmission of electrical power. The method comprises the following method steps: a) detecting upstream and downstream of the line, data which characterize the operating status of the transmission network, b) processing the detected data in order to identify a fault, c) switching off at least one faulty phase of the line on the basis of the identified fault, and d) activating a balancing compensator which feeds compensation currents into the transmission network such that the currents flowing in the transmission networks form a balanced system. This method has the major advantage that, now, even lines subject to faults can be used for the transmission of electrical power.

REFERENCES:
patent: 5134356 (1992-07-01), El-Sharkawi et al.
patent: 5710492 (1998-01-01), Konishi et al.
"Analysis of a 3-Level-VSI Neutral-Point Control for Fundamental Frequency Modulated SVC-Applications", Scheuer, et al., AC and DC Power Transmission, Conference Publication No. 423, IEE, Apr. 1996.

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