DC Bus

Create Function

pandapower.create_bus_dc(net, vn_kv, name=None, index=None, geodata=None, type='b', zone=None, in_service=True, max_vm_pu=nan, min_vm_pu=nan, coords=None, **kwargs)

Adds one dc bus in table net[“bus_dc”].

Busses are the nodes of the network that all other elements connect to.

INPUT:

net (pandapowerNet) - The pandapower network in which the element is created

vn_kv (float) - The grid voltage level.

OPTIONAL:

name (string, default None) - the name for this dc bus

index (int, default None) - Force a specified ID if it is available. If None, the index one higher than the highest already existing index is selected.

geodata ((x,y)-tuple, default None) - coordinates used for plotting

type (string, default “b”) - Type of the bus. “n” - node, “b” - busbar, “m” - muff

zone (string, None) - grid region

in_service (boolean) - True for in_service or False for out of service

max_vm_pu (float, NAN) - Maximum dc bus voltage in p.u. - necessary for OPF

min_vm_pu (float, NAN) - Minimum dc bus voltage in p.u. - necessary for OPF

coords (list (len=2) of tuples (len=2), default None) - busbar coordinates to plot the dc bus with multiple points. coords is typically a list of tuples (start and endpoint of the busbar) - Example: [(x1, y1), (x2, y2)]

OUTPUT:

index (int) - The unique ID of the created element

EXAMPLE:

create_bus_dc(net, 20., name = “bus1”)

Input Parameters

net.bus_dc

Parameter	Datatype	Value Range	Explanation
name	string		name of the dc bus
vn_kv*	float	\(>\) 0	rated voltage of the dc bus [kV]
type	string	naming conventions: “n” - node “b” - busbar “m” - muff	type variable to classify buses
zone	string		can be used to group dc buses, for example network groups / regions
in_service*	boolean	True / False	specifies if the dc bus is in service

*necessary for executing a power flow calculation

Note

Bus voltage limits can not be set for slack buses and will be ignored by the optimal power flow.

net.bus_dc_geodata

Parameter	Datatype	Explanation
x	float	x coordinate of dc bus location
y	float	y coordinate of dc bus location

Electric Model

Result Parameters

net.res_bus_dc

Parameter	Datatype	Explanation
vm_pu	float	voltage magnitude [p.u]
p_mw	float	resulting active power demand [MW]

The power flow bus results are defined as:

\begin{align*} vm\_pu &= \lvert \underline{V}_{bus} \rvert \\ p\_mw &= Re(\sum_{n=1}^N \underline{S}_{bus, n}) \\ \end{align*}