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Raising a new Generation of Leaders
Power line carrier technologies:
A review.
ICSSD 2020
Outline

Introduction

Background

Aim

Findings

Conclusions and Recommendations
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Introduction
Power line carrier (PLC) in power communications
In this age of information technology and
describes the procedural stages for the transmission and
communication, the dispersion of information has
receiving of data and information using high-voltage
become a significant necessity in virtually all sectors of
power lines as the channel or transmission path
life from the industrial sector to power, medicine,
commercial and residential areas at large.
However, this is achieved by using the existing power line
for data transmission. PLC evolution has also been quite
With evolutions in communication modes, other alternatives
such as PLC are also being studied for effective
communication between substations in transmissions and
end-users in the distribution sector
impactful in the distribution sector, making
communications between household users and distribution
substations possible with smart metering and other data
acquisition from the field
BACKGROUND
The main focus of this
review article is to
explore the power
line carrier
communication
technologies,
applications,
challenges, and
solutions. PLC
system block
diagram is
presented in figure 1
Figure 1: PLC Block diagram
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AIM
To give an elaborate review on Power line carrier
technologies in the power system considering the applications
types, challenges, solutions.
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Working Principle of the Power Line Carrier System
Figure 2: The structure of a Power line communication system
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Working Principle of the Power Line Carrier System
𝟏
• 𝑿𝒄
(𝜴) ………………(1)
𝟐𝝅 ×𝒇×𝑪
Where:
XC = Capacitive reactance,
C = Capacitor capacitance,
f = frequency
Figure 3 Coupling capacitors
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Working Principle of the Power Line Carrier System
𝑿𝑳 = 𝟐𝝅 × 𝒇 × 𝑳 (𝛀) …………… (2)
Where XL = inductive reactance,
f = frequency,
L = wave trap inductance.
Figure 4: Line/Wave Trap
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Applications of Power Line Carriers
• Industrial Automation and Telecommunication Services: remote billing, demand
management, and meter reading
• Solutions for Electricity Suppliers: fraud and fault detection,
• Carrier Protection Relaying of Transmission Line
• Smart Grid Applications: creation of modern communication links
• Broadband Internet Access: possible for customers to access the internet
• Automatic meter reading
• Home networking and Internet Access: controlling light and home appliances
remotely, such as drapes and curtains
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Table 1: Comparison between Narrowband PLC and Broadband PLC
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Challenges and Solutions
Challenges
• Electrical power lines are usually very noisy due to the high amount of energy that they
transmit. The signal strength and the operating frequency are also another challenge in
power line carrier .
• Bad weather can also pose a challenge to the power line carrier as they had adverse
effects on the system such as ice frost on the cable.
• Poor coordination between the telecom and power providers
• interferences caused by power line carriers
• The personnel have to be more careful, to guard the PLC equipment against the high
voltages and currents on the lines.
Solutions:
• Prohibition of specific frequency bands can also be a solution to the interferences
caused by power line carriers, including groups used for an aeronautical service, public
safety, and national defence.
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Conclusion
 The power line carrier system is an effective means of transmitting
information via power lines for utilization in power stations.
 With the advancements of networking and information technology and
other communications modes, there is a need for development in the
power line carrier system to enable the transfer of a large amount of
information at a specified bit rate possible.
 The traditional power line carrier system for control and communication
purposes is still widely revered in power systems despite other
advancements in communication modes; it remains highly reliable in
issuing control commands to power systems equipment.
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THANK YOU FOR
LISTENING!
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Questions
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