Apparatus and method for control of direct current transmission lines

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10236785
APP PUB NO 20160285378A1





Loading Importance Indicators... loading....


See full text

This application relates to methods and apparatus for control apparatus of a voltage source converter for direct current transmission of electrical power over a transmission line. The control apparatus comprises regulation control for generating a regulation signal for the converter to regulate an electrical parameter of the voltage source converter, such as voltage or power, so as to regulate power transmission over the transmission line. The regulation signal is based on the difference between a measured value of said parameter and a reference value of said parameter, as may be supplied from a reference control block and may be derived from a demand signal indicating the voltage or power demand. The apparatus also includes damping control configured to generate a damping signal for modulating said regulation signal to reduce the effect of resonance within the bandwidth of control of the converter. The damping signal is generated as a function of a measured voltage or current of the transmission line and an impedance value for the transmission line. The damping signal may be high-pass filtered so as to have no substantial impact on steady state operation.

Loading the Abstract Image... loading....

First Claim

See full text


Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress

International Classification(s)


Inventor Name Address # of filed Patents Total Citations
Oates, Colin Brocton, GB 8 46

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Sep 19, 2022
7.5 Year Payment $3600.00 $1800.00 $900.00 Sep 19, 2026
11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 19, 2030
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00