Bus¶
File name: bus.py
Last edited: 2020-06-14
Created by: Stefan Bruche (TU Berlin)
A Bus component collects and transfers a commodity. Bus components can also be used to model transmission lines between different sites.
- class aristopy.bus.Bus(ensys, name, inlet, outlet, basic_variable='inlet_variable', has_existence_binary_var=False, time_series_data=None, scalar_params=None, additional_vars=None, user_expressions=None, capacity=None, capacity_min=None, capacity_max=None, capex_per_capacity=0, capex_if_exist=0, opex_per_capacity=0, opex_if_exist=0, opex_operation=0, losses=0)[source]¶
Initialize an instance of the Bus class.
Note
See the documentation of the
Componentclass for a description of all keyword arguments and inherited methods.- Parameters
losses (float or int (0<=value<=1)) – Factor to specify the relative loss of the transported commodity between inlet and outlet per hour of operation (0 => no loss; 1 => 100% loss).
Default: 0
- declare_component_constraints(ensys, model)[source]¶
Method to declare all component constraints.
The following constraint methods are inherited from the Component class and are not documented in this sub-class:
Method is not intended for public access!
- Parameters
ensys – Instance of the EnergySystem class
model – Pyomo ConcreteModel of the EnergySystem instance
- con_operation_limit(model)[source]¶
The basic variable of a component is limited by its nominal capacity. This means, the operation (commodity at inlet or outlet) of a bus (MWh) is limited by its nominal power (MW) multiplied with the number of hours per time step. E.g.:
Q_IN[p, t] <= CAP * dtMethod is not intended for public access!
- con_bus_balance(model)[source]¶
The quantity of the commodity at the outlet must equal the quantity at the inlet minus the the transmission loss share. A bus component cannot store a commodity (correction with “hours_per_time_step” not needed). E.g.:
Q_OUT[p, t] == Q_IN[p, t] * (1 - losses)Method is not intended for public access!