noisy-load-profiles 0.1.0

A Python package for adding realistic noise to electrical load or current profiles. Useful for studying robustness to noise of algorithms

Overview

This is a package to ADD realistic sources of noise to electrical load profiles. This is useful for testing the robustness of algorithms to noise, to enhance the realism of synthetic data, or to generate augmented data for machine learning purposes.

The overal approach is as follows:

• The package contains various Perturbations, such as perturbations to add Gaussian or Ornstein-Uhlenbeck noise, or to simulate measurement deadbands (and many others)
• You decide which perturbations you want to use, and you add them to a Pipeline object.
• You can call pipeline.apply(profiles), and the pipeline sequentially applies the various perturbations to the given profiles.

Note, the package expects profiles as a 2D array (timesteps X measurement devices)

Examples

We have examples that demonstrate basic usage, advanced usage, and how to construct new Perturbations on our github.

Below we show the most barebones example of a pipeline applying two types of noise.

import noisy_load_profiles as nolp
import numpy as np



# initialize some profiles
timesteps = 10
n_profiles = 2
profiles = np.ones((timesteps, n_profiles)) # 2 profiles with 10 timesteps each; example


# Initialize some pertubations
gaussian_noise = nolp.perturbations.MultiplicativeGaussianNoise(mean=0.0, std=0.01, seed=42)
deadband = nolp.perturbations.PercentualDeadBand(seed=42)

# construct the pipeline
pipeline = nolp.Pipeline([gaussian_noise, deadband])


# apply the perturbation to the profiles
perturbed_profiles = pipeline.apply(profiles)