Review and Progress towards the Common Broadband Management of High-Voltage Transmission Grids: Model Expansion and Comparative Modal Analysis

Figure 6

Channel attenuation versus the distance from the transmitting end—see Figure 2(c), point A—for good channel class case (yellow solid lined triangle), Topology 1 (green dashed line), Topology 3 (cyan solid lined diamond), bad channel case (red solid lined circle), Topology 2 (blue dashed lined triangle), Topology 4 (magenta dashed lined X), and “LOS” transmission case (black dash-dotted line) (the distance span is equal to 100 m). (a) DM^150kV₄ at 𝑓=25 MHz. (b) DM^275kV₄ at 𝑓=25 MHz. (c) DM^400kV₄ at 𝑓=25 MHz. (d) Absolute difference between DM^150kV₄ and DM^275kV₄ at 𝑓=25 MHz. (e) Absolute difference between DM^150kV₄ and DM^400kV₄ at 𝑓=25 MHz. (f) Absolute difference between DM^275kV₄ and DM^400kV₄ at 𝑓=25 MHz. (g) DM^150kV₄ at 𝑓=75 MHz. (h) DM^275kV₄ at 𝑓=75 MHz. (i) DM^400kV₄ at 𝑓=75 MHz. (j) Absolute difference between DM^150kV₄ and DM^275kV₄ at 𝑓=75 MHz. (k) Absolute difference between DM^150kV₄ and DM^400kV₄ at 𝑓=75 MHz. (l) Absolute difference between DM^275kV₄ and DM^400kV₄ at 𝑓=75 MHz.

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