agentlib_mpc.optimization_backends package

validator check_overwrite » overwrite_result_file[source]: Checks, whether the overwrite results sttings are valid, and deletes existing result files if applicable.

validator disable_results_if_no_file » save_results[source]

class agentlib_mpc.optimization_backends.backend.OptimizationBackend(config: dict)[source]

Bases: ABC

Base class for all optimization backends. OptimizationBackends are a plugin for the ‘mpc’ module. They provide means to setup and solve the underlying optimization problem of the MPC. They also can save data of the solutions.

config_type: alias of BackendConfig

cost_function: Callable | None

get_lags_per_variable() → dict[str, float][source]: Returns the name of variables which include lags and their lag in seconds. The MPC module can use this information to save relevant past data of lagged variables

model: ModelT

model_from_config(model: dict)[source]: Set the model to the backend.

mpc_backend_parameters = ('time_step', 'prediction_horizon')

register_logger(logger: Logger)[source]: Registers a logger, can be used to use the module logger

results_file_exists() → bool[source]: Checks if the results file already exists.

results_folder_exists() → bool[source]: Checks if the results folder already exists, and if not, creates it with headers.

abstract setup_optimization(var_ref: VariableReference)[source]

Performs all necessary steps to make the solve method usable.

Parameters:: var_ref – Variable Reference that specifies the role of each model variable in the mpc

abstract solve(now: float | datetime, current_vars: Dict[str, AgentVariable]) → Results[source]

Solves the optimization problem given the current values of the corresponding AgentVariables and system time. The standardization of return values is a work in progress.

Parameters:

now – Current time used for interpolation of input trajectories.
current_vars – Dict of AgentVariables holding the values relevant to the optimization problem. Keys are the names

Returns:

A dataframe with all optimization variables over their respective grids. Depending on discretization, can include many nan’s, so care should be taken when using this, e.g. always use dropna() after accessing a column.

Example:

variables mDot | T_0 | slack_T

time 0 0.1 | 298 | nan 230 nan | 297 | 3 470 nan | 296 | 2 588 nan | 295 | 1 700 0.05 | 294 | nan 930 nan | 294 | 0.1

update_discretization_options(opts: dict)[source]: Updates the discretization options with the new dict.

update_model_variables(current_vars: Dict[str, AgentVariable])[source]: Internal method to write current data_broker to model variables. Only update values, not other module_types.

var_ref: VariableReference | None