ENH: Expose the line series and shunt currents #99
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alihamdan
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Jul 27, 2023
Fixes #99 The `Line` class gained two new properties: 1. `res_series_currents`: An array of currents in the series components of the line 2. `res_shunt_currents`: A 2-tuple of arrays of currents in the shunt components from each side of the line The `ElectricalNetwork` now has a `res_lines` property that replaces `res_lines_losses`. The new property contains all columns from `res_branches` in addition to the columns `series_losses` and `series_current`. The columns `shunt_losses` and `total_losses` have been removed but can be easily computed. ```py df = en.res_lines total_losses = df["power1"] + df["power2"] shunt_losses = total_losses - df["series_losses"] ``` In addition, the shunt currents can be computed with: ```py shunt_currents1 = df["current1"] - df["series_current"] shunt_currents2 = df["series_current"] + df["current2"] ``` The detailed shunt losses/currents always remain accessible on the line element itself.
alihamdan
added a commit
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Jul 27, 2023
Fixes #99 The `Line` class gained two new properties: 1. `res_series_currents`: An array of currents in the series components of the line 2. `res_shunt_currents`: A 2-tuple of arrays of currents in the shunt components from each side of the line The `ElectricalNetwork` now has a `res_lines` property that replaces `res_lines_losses`. The new property contains all columns from `res_branches` in addition to the columns `series_losses` and `series_current`. The columns `shunt_losses` and `total_losses` have been removed but can be easily computed. ```py df = en.res_lines total_losses = df["power1"] + df["power2"] shunt_losses = total_losses - df["series_losses"] ``` In addition, the shunt currents can be computed with: ```py shunt_currents1 = df["current1"] - df["series_current"] shunt_currents2 = df["series_current"] + df["current2"] ``` The detailed shunt losses/currents always remain accessible on the line element itself.
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For a line with shunt elements, there is no public API that exposes the currents that flow in the series components and those in the shunt components. We have these values internally but we don't expose them yet.
To make them public we need to:
res_shunt_currentsandres_series_currentsproperties to theLineclassres_lines_lossesdata frame on the electrical network to include the currentsFor a simplified line with no shunt components, the series currents are equal to the currents from buses 1 & 2 and the shunt currents are zero.
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