Page 429 - Decision Making Applications in Modern Power Systems

Chapter 15

Impact of demand-side

management system in
autonomous DC microgrid

1
Rajeev Kumar Chauhan and Kalpana Chauhan 2
1
Department of Electronic and Instrumentation Engineering, Galgotias College of Engineering
2
and Technology, Greater Noida, India, Department of Electrical and Electronics Engineering,
Galgotias College of Engineering and Technology, Greater Noida, India

15.1 Introduction
According to the Central Electricity Authority report, India is running short
of around 11% peak demand and more than 24% transmission and distribu-
tion losses, which is the cause of poor grid availability in many remote loca-
tions in India. This is the motivation for the residential building consumers
to install their own captive power plant to improve the electricity reliability
in the building. The rapid decrement in the photovoltaic (PV) system cost
and government of India subsidized the rooftop PV plant, motivates the resi-
dential consumers to mount the PV plant on their rooftop. The electronic
loads (DC appliances) have become the popular choice of the residential
buildings due to high efficiency of the DC appliances [1]. The PV system is
a naturally DC power source. Therefore the DC AC) and AC DC conver-
ters are needed to integrate the direct current (DC) appliances and PV system
to the traditional alternating current (AC) power distribution system [2].This
increases the conversion losses and overall capital costs as well as decreases
the efficiency and reliability of power distribution system [3]. In this chapter
a capital cost based comparative analysis of the AC and DC power distribu-
tion structures is conducted: (1) traditional AC system: AC distribution sys-
tem with AC compatible appliances, (2) hybrid AC system: AC distribution
system with DC appliances; (3) conventional DC distribution system: DC
distribution system with DC compatible appliances (high efficient); and (4)
DC distribution system with demand-side management (DSM) scheme: DC
distribution system with DC compatible appliances and load is managed as
per the DSM scheme.

Decision Making Applications in Modern Power Systems. DOI: https://doi.org/10.1016/B978-0-12-816445-7.00015-3
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