mp.dme_load

class mp.dme_load

Bases: mp.dm_element

mp.dme_load - Data model element for load.

Implements the data element model for load elements, using a ZIP load model.

Adds the following columns in the main data table, found in the tab property:

Name	Type	Description
bus	integer	bus ID (uid)
pd	double	\(p_p\), active constant power demand (MW)
qd	double	\(q_p\), reactive constant power demand (MVAr)
pd_i	double	\(p_i\), active nominal [1] constant current demand (MW)
qd_i	double	\(q_i\), reactive nominal [1] constant current demand (MVAr)
pd_z	double	\(p_z\), active nominal [1] constant impedance demand (MW)
qd_z	double	\(q_z\), reactive nominal [1] constant impedance demand (MVAr)
p	double	\(p\), total active demand (MW)
q	double	\(q\), total reactive demand (MVAr)

[1]

Nominal means for a voltage of 1 p.u.

Implements a ZIP load model, where each load has three components, and total demand for the load i is given by

(3.1)\[\begin{split}\cscal{s} &= \cscal{s}_p + \cscal{s}_i |\cscal{v}| + \cscal{s}_z |\cscal{v}|^2 \\ p + j q &= (p_p + j q_p) + (p_i + j q_i) |\cscal{v}| + (p_z + j q_z) |\cscal{v}|^2\end{split}\]

Property Summary

bus

bus index vector (all loads)

pd

active power demand (p.u.) for constant power loads that are on

qd

reactive power demand (p.u.) for constant power loads that are on

pd_i

active power demand (p.u.) for constant current loads that are on

qd_i

reactive power demand (p.u.) for constant current loads that are on

pd_z

active power demand (p.u.) for constant impedance loads that are on

qd_z

reactive power demand (p.u.) for constant impedance loads that are on

Method Summary

name()

label()

labels()

cxn_type()

cxn_idx_prop()

main_table_var_names()

count(dm)

update_status(dm)

build_params(dm)

pp_have_section_sum(mpopt, pp_args)

pp_data_sum(dm, rows, out_e, mpopt, fd, pp_args)

pp_have_section_det(mpopt, pp_args)

pp_get_headers_det(dm, out_e, mpopt, pp_args)

pp_get_footers_det(dm, out_e, mpopt, pp_args)

pp_data_row_det(dm, k, out_e, mpopt, fd, pp_args)