Citation: Philipo, G.H.; Kakande,
J.N.; Krauter, S. Neural
Network-Based Demand-Side
Management in a Stand-Alone Solar
PV-Battery Microgrid Using
Load-Shifting and Peak-Clipping.
Energies 2022, 15, 5215. https://
doi.org/10.3390/en15145215
Academic Editors: Alon Kuperman
and Agnieszka Rzepka
Received: 25 May 2022
Accepted: 13 July 2022
Published: 19 July 2022
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energies
Article
Neural Network-Based Demand-Side Management in a
Stand-Alone Solar PV-Battery Microgrid Using Load-Shifting
and Peak-Clipping
Godiana Hagile Philipo
1,2,
* , Josephine Nakato Kakande
1,3
and Stefan Krauter
1
1
Electrical Energy Technology—Sustainable Energy Concepts, Faculty of Computer Science,
Electrical Engineering and Mathematics, Paderborn University, Pohlweg 55, D-33098 Paderborn, Germany;
jkakande@mail.uni-paderborn.de (J.N.K.); stefan.krauter@uni-paderborn.de (S.K.)
2
Department of Material, Energy, Water and Environmental Sciences, The Nelson Mandela African Institution
of Science and Technology, Arusha P.O. Box 447, Tanzania
3
Department of Electrical and Computer Engineering, CEDAT, Makerere University,
Kampala P.O. Box 7062, Uganda
* Correspondence: philipog@campus.uni-paderborn.de
Abstract: Due to failures or even the absence of an electricity grid, microgrid systems are becoming
popular solutions for electrifying African rural communities. However, they are heavily stressed
and complex to control due to their intermittency and demand growth. Demand side management
(DSM) serves as an option to increase the level of flexibility on the demand side by scheduling
users’ consumption patterns profiles in response to supply. This paper proposes a demand-side
management strategy based on load shifting and peak clipping. The proposed approach was modelled
in a MATLAB/Simulink R2021a environment and was optimized using the artificial neural network
(ANN) algorithm. Simulations were carried out to test the model’s efficacy in a stand-alone PV-battery
microgrid in East Africa. The proposed algorithm reduces the peak demand, smoothing the load
profile to the desired level, and improves the system’s peak to average ratio (PAR). The presence
of deferrable loads has been considered to bring more flexible demand-side management. Results
promise decreases in peak demand and peak to average ratio of about 31.2% and 7.5% through peak
clipping. In addition, load shifting promises more flexibility to customers.
Keywords: microgrid; neural network; demand response; energy storage; smart grid; demand-side
management; load shifting
1. Introduction
Undoubtedly, the availability, acceptability, efficiency and affordability of energy
are fundamental to advanced civilization and better quality of life [1,2]. Energy access
is essential in achieving healthy and productive households with a growing modern
economy [3]. Several reports advocate that the use of electricity by rural communities
in developing countries could be advantageous to its inhabitants, especially for services
related to water [4], agriculture, health, education and commerce [5,6]. Poor access to
electricity in rural areas has been linked to community development gaps, leading to rural
to urban migration and putting further stress on already strained urban infrastructure
systems [7–9]. However, in Sub-Saharan African countries, only about two-fifths of the
population has access to electricity, the lowest proportion in the world [3,10]. In East Africa,
the situation is still critical, since about 80% of the population has no or unreliable access
to electricity, the majority being people in rural areas [11,12]. Rural area electrification in
developing countries poses challenges in constructing power generation and transmission
networks [6]. Several studies have depicted that, despite the political efforts to improve
grid transmission and power generation, emphasis is more on the urban and industrial
loads due to their higher demand [13] and political relevance.
Energies 2022, 15, 5215. https://doi.org/10.3390/en15145215 https://www.mdpi.com/journal/energies