Planning and Control of Expandable Multi-Terminal VSC-HVDC Transmission Systems by Roni Irnawan

Author:Roni Irnawan
Language: eng
Format: epub
ISBN: 9783030274887
Publisher: Springer International Publishing

Signal Conditioning

In this component, the measurement signals are processed by amplification, filtering, or other necessary processes, e.g. to filter out the noise from the measurement units. Furthermore, this component prepares the measured active power and DC current to have the same convention as the one used by the DC grid control. As in [1, 9–11], the following sign convention used in this thesis for and is as follows:positive rectifier operation

negative inverter operation

This part is not used in the previous tests, because it is already assumed that the measurement signals follow the same convention used by the DLT method and have been filtered to remove the measurement noise with a low-pass filter having a time constant of 0.02 s (1-cycle of the AC frequency).

Input Selector

This component selects the corresponding measurement signals pair ( and ) depending upon the droop relationship, i.e. described in Sect. 3.​2.​2 and formulated in (4.10).

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