The document discusses the role of automation in smart grids. It describes how advanced distribution automation uses data from monitoring systems and smart meters to optimize the distribution of power. Key components of distribution automation discussed include SCADA systems, automated feeder switches, capacitors, voltage regulators, and load tap changers. Equipment health monitoring using sensors provides real-time alerts and analytics to improve maintenance. The benefits of distribution automation are more efficient restoration of power during outages and improved integration of renewable resources.
In upcoming generation there is many advancement in electrical grid which make them more reliable. the smart grid was introduced with the aim of overcoming the weaknesses of conventional electrical grids using smart net meters.
AUTOMATIC VOLTAGE CONTROL OF TRANSFORMER USING MICROCONTROLLER AND SCADA Ajesh Jacob
AUTOMATIC VOLTAGE CONTROL OF TRANSFORMER USING MICROCONTROLLER AND SCADA
LABVIEW PROJECT FINAL YEAR EEE
ABSTRACT: A tap changer control operates to connect appropriate tap position of winding in power transformers to maintain correct voltage level in the power transmission and distribution system. Automatic tap changing can be implemented by using µC. This improved tap-changing decision and operational flexibility of this new technique make it attractive for deployment in practical power system network. This paper deals with the implementation of µC based tap changer control practically, using special purpose digital hardware as a built-in semiconductor chip or software simulation in conventional computers. Two strategies are suggested for its implementation as a software module in the paper. One is to integrate it with the supervisory system in a substation control room operating in a LAN environment. In this configuration, the parallel transformers can be controlled locally. The other is to integrate it into the SCADA (Supervisory Control and Data Acquisition) system, which allows the transformers to be monitored and controlled remotely over a wide area of power-network. The implementation of µC based tap changer control needs interfacing between the power system and the control circuitry. µC s may need to interact with people for the purpose of configuration, alarm reporting or everyday control.
A human-machine interface (HMI) is employed for this purpose. An HMI is usually linked to the SCADA system’s databases and software programs, to provide trending, diagnostic data, and management information such as scheduled maintenance procedures, logistic information, detailed schematics for a particular sensor or machine, and expert-system troubleshooting guides.
OBJECTIVES: The original system can afford the following features:
- Complete information about the plant (circuit breakers status, source of feeding, and level of the consumed power).
- Information about the operating values of the voltage, operating values of the transformers, operating values of the medium voltage, load feeders, operating values of the generators. These values will assist in getting any action to return the plant to its normal operation by minimum costs.
- Information about the quality of the system (harmonics, current, voltages, power factors, flickers, etc.). These values will be very essential in case of future correction.
- Recorded information such case voltage spikes, reducing the voltage on the medium or current interruption.
- implementation of µC based tap changer control practically, using special purpose digital hardware as a built-in semiconductor chip or software simulation in conventional computers.
IRJET-A Novel Approach for Automatic Monitoring of Power Consumption using S...IRJET Journal
In Smart Grid, the smart meters are versatile role with intelligent capabilities in order to meet the consumer's demands and their each objective. Smart meter can measure and communicate detailed real time electricity usage, facilitate remote real time monitoring and control power consumptions and consumers are provided with real time pricing and analyzed usage information, which is a technical data to be transmitted to the grid, who are utility providers. More detailed feedback on each appliance to the user.This paper gives an overview of the security issues regarding power grids. It is targeted to use case scenarios, namely smart metering, and home gateway for applications like electric cars and home multimedia contents distribution over the power grid.
SCADA at the core of power systems monitoring and control
Power systems monitoring requires increasing amounts of information coming from multiples sources, manually or automatically, and at different
points in time, each with their own resolution and quality.
SCADA collects all this information in real time to:
• Process in terms of validity, usability, and accuracy and store them for future analysis.
• Combine into a flexible, simple or complex calculation.
• Provide operators and other control systems with flags and alarms, which are valuable for action and control.
• Feed advanced applications such as network security and generation dispatch.
SCADA at the core of power systems monitoring and control
Power systems monitoring requires increasing amounts of information coming from multiples sources, manually or automatically, and at different
points in time, each with their own resolution and quality.
SCADA collects all this information in real time to:
• Process in terms of validity, usability, and accuracy and store them for future analysis.
• Combine into a flexible, simple or complex calculation.
• Provide operators and other control systems with flags and alarms, which are valuable for action and control.
• Feed advanced applications such as network security and generation dispatch.
Within data parameters, phasor measurement units generate a huge flow of points due to high scanning resolution (1ms). SCADA can now
integrate phasor data.
SCADA: the critical block for EMS
SCADA is the core of any monitoring and control system.
This is where all information captured from the
field via manual reading, automated control systems
in substations and power plants, and from other control
centers is processed in real time before being
made available for further analysis and action by operators.
Without SCADA running, EMS and operators
have reduced network vision and cannot operate at
full capacity. SCADA reliability is built-in by design
with one or multiple redundancy levels to ensure
100% availability.
Incorporating WAMS technology for
increased awareness and network
flexibility
Traditionally, SCADA receives data points scanned at
1s or higher resolution depending on communication
bandwidth and local scanning capabilities such as RTU,
a substation automation system, or a power plant
control system. The latest WAMS technology, under
deployment for the last 10 years, has reached a level
of reliability and performance enabling it to manage a
large number of phasor measurement units (PMUs) data
scanned at 1ms from thousands of PMUs implemented
across the network. Phasor Data Concentrator (PDC)
and PhasorProcessor are also now part of the SCADA
solutions GE offers to its customers.
Coupling existing EMS applications with a Phasor
application inside an Advanced Energy Management
System (AEMS) unlocks additional network flexibility
in terms of blackout prevention and network power
capacity required as intermittent renewable generation
grows.
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
In upcoming generation there is many advancement in electrical grid which make them more reliable. the smart grid was introduced with the aim of overcoming the weaknesses of conventional electrical grids using smart net meters.
AUTOMATIC VOLTAGE CONTROL OF TRANSFORMER USING MICROCONTROLLER AND SCADA Ajesh Jacob
AUTOMATIC VOLTAGE CONTROL OF TRANSFORMER USING MICROCONTROLLER AND SCADA
LABVIEW PROJECT FINAL YEAR EEE
ABSTRACT: A tap changer control operates to connect appropriate tap position of winding in power transformers to maintain correct voltage level in the power transmission and distribution system. Automatic tap changing can be implemented by using µC. This improved tap-changing decision and operational flexibility of this new technique make it attractive for deployment in practical power system network. This paper deals with the implementation of µC based tap changer control practically, using special purpose digital hardware as a built-in semiconductor chip or software simulation in conventional computers. Two strategies are suggested for its implementation as a software module in the paper. One is to integrate it with the supervisory system in a substation control room operating in a LAN environment. In this configuration, the parallel transformers can be controlled locally. The other is to integrate it into the SCADA (Supervisory Control and Data Acquisition) system, which allows the transformers to be monitored and controlled remotely over a wide area of power-network. The implementation of µC based tap changer control needs interfacing between the power system and the control circuitry. µC s may need to interact with people for the purpose of configuration, alarm reporting or everyday control.
A human-machine interface (HMI) is employed for this purpose. An HMI is usually linked to the SCADA system’s databases and software programs, to provide trending, diagnostic data, and management information such as scheduled maintenance procedures, logistic information, detailed schematics for a particular sensor or machine, and expert-system troubleshooting guides.
OBJECTIVES: The original system can afford the following features:
- Complete information about the plant (circuit breakers status, source of feeding, and level of the consumed power).
- Information about the operating values of the voltage, operating values of the transformers, operating values of the medium voltage, load feeders, operating values of the generators. These values will assist in getting any action to return the plant to its normal operation by minimum costs.
- Information about the quality of the system (harmonics, current, voltages, power factors, flickers, etc.). These values will be very essential in case of future correction.
- Recorded information such case voltage spikes, reducing the voltage on the medium or current interruption.
- implementation of µC based tap changer control practically, using special purpose digital hardware as a built-in semiconductor chip or software simulation in conventional computers.
IRJET-A Novel Approach for Automatic Monitoring of Power Consumption using S...IRJET Journal
In Smart Grid, the smart meters are versatile role with intelligent capabilities in order to meet the consumer's demands and their each objective. Smart meter can measure and communicate detailed real time electricity usage, facilitate remote real time monitoring and control power consumptions and consumers are provided with real time pricing and analyzed usage information, which is a technical data to be transmitted to the grid, who are utility providers. More detailed feedback on each appliance to the user.This paper gives an overview of the security issues regarding power grids. It is targeted to use case scenarios, namely smart metering, and home gateway for applications like electric cars and home multimedia contents distribution over the power grid.
SCADA at the core of power systems monitoring and control
Power systems monitoring requires increasing amounts of information coming from multiples sources, manually or automatically, and at different
points in time, each with their own resolution and quality.
SCADA collects all this information in real time to:
• Process in terms of validity, usability, and accuracy and store them for future analysis.
• Combine into a flexible, simple or complex calculation.
• Provide operators and other control systems with flags and alarms, which are valuable for action and control.
• Feed advanced applications such as network security and generation dispatch.
SCADA at the core of power systems monitoring and control
Power systems monitoring requires increasing amounts of information coming from multiples sources, manually or automatically, and at different
points in time, each with their own resolution and quality.
SCADA collects all this information in real time to:
• Process in terms of validity, usability, and accuracy and store them for future analysis.
• Combine into a flexible, simple or complex calculation.
• Provide operators and other control systems with flags and alarms, which are valuable for action and control.
• Feed advanced applications such as network security and generation dispatch.
Within data parameters, phasor measurement units generate a huge flow of points due to high scanning resolution (1ms). SCADA can now
integrate phasor data.
SCADA: the critical block for EMS
SCADA is the core of any monitoring and control system.
This is where all information captured from the
field via manual reading, automated control systems
in substations and power plants, and from other control
centers is processed in real time before being
made available for further analysis and action by operators.
Without SCADA running, EMS and operators
have reduced network vision and cannot operate at
full capacity. SCADA reliability is built-in by design
with one or multiple redundancy levels to ensure
100% availability.
Incorporating WAMS technology for
increased awareness and network
flexibility
Traditionally, SCADA receives data points scanned at
1s or higher resolution depending on communication
bandwidth and local scanning capabilities such as RTU,
a substation automation system, or a power plant
control system. The latest WAMS technology, under
deployment for the last 10 years, has reached a level
of reliability and performance enabling it to manage a
large number of phasor measurement units (PMUs) data
scanned at 1ms from thousands of PMUs implemented
across the network. Phasor Data Concentrator (PDC)
and PhasorProcessor are also now part of the SCADA
solutions GE offers to its customers.
Coupling existing EMS applications with a Phasor
application inside an Advanced Energy Management
System (AEMS) unlocks additional network flexibility
in terms of blackout prevention and network power
capacity required as intermittent renewable generation
grows.
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6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
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The Role of Automation in Smart Grid.pptx
1. The Role of Automation
in Smart Grid
Roll.No :
19tuee018,
19tuee019,
19tuee020,
19tuee021,
19tuee022.
2. INTRODUCTION
● Smart Grids are enabling technologies aiming to resolve major challenges arising from
the aging utility infrastructure, rising energy demands, and growing concerns over the
excessive use of exhaustible resources such as carbon- based fossil fuels for energy
generation.
● In order to build intelligent features into the existing traditional power grid, a
comprehensive technological approach compromising of real-time monitoring
systems, decision-making algorithms, control systems, forecasting and optimized
algorithms are essential.
● For implementing this technologies in smart grids must include: Distribution
Automation (DA), asset management, Advanced Metering Infrastructure (AMI),
renewable energy resources.In simultaneousness with the deployment of
information technology and telecommunication networks, smart grids now allows the
utility companies to monitor and optimize the production and distribution of power in
near- real time.
● This is possible because of the smart power generation that allows and involves the
two way flow of electricity and information. The generation is based on the
consumption or the expected demand and the demand can drive the generation as or
when it desires.
3. Advanced Distribution Automation (ADA)
● The term Advanced Distribution Automation (ADA) can be put up as the
automation of all the features related to the distribution system using the
information that has been collected from various sub-stations, devices deployed
on the grids and the smart meters at the end location.
● The most important aspects while designing an effective distribution automation
system is protection and switching functions. Nowadays, various DA devices
have been deployed in the distribution lines to track current and voltage state at
various times, to exchange device information and to reconfigure the network to
meet the regular changes in the environment.
4. SCADA
● SCADA (Supervisory Control And Data Acquisition) that monitors and
controls the various distribution substations is considered as Advanced
Distribution Automation. This system provides an extra benefit of remotely
controlling and observing the renewable energy sources (RES).
● The SCADA system monitors and can make slight changes in the system to
function properly. This system is a closed loop system and works with very
less human intervention and also has the ability to monitor the entire system
in near-real time.
5. APPLICATIONS OF ADVANCED DISTRIBUTION
AUTOMATION IN SMART GRID
● The most important application of the Advanced Distribution Automation is
fault diagnosis by monitoring the faults in the grid, then identifying the root
cause of the occurred fault and then restoring the system.
● Automated fault and root-cause identification can also been investigated
using the state of art of technologies such as cause-effect network, Artificial
Intelligence or Bayesian inference.
● The deployment of wireless sensors, distributed actuators, and the present
day information and communication technologies would generate more
accurate real-time data about the states, making automated fault diagnosis
feasible and applicable in future intelligent smart grids.
6. DISTRIBUTION AUTOMATION BENEFITS
1) Improvement in location of fault, isolation, and service restoration
capabilities that result in less number of outages, less operational and maintenance
costs, less chances of equipment failure or damage, and lesser inconvenience at the
consumer end.
2) Improved distribution system resilience to extreme weather events by
automatically limiting the extent of major outages and improving operator ability to
diagnose and repair damaged equipment.
3) More effective equipment monitoring and preventative maintenance that
reduces operating costs, enables more efficient use of capital assets, reduces the
likelihood of equipment failures.
4) More efficient use of repair crews and truck rolls that reduces operating
costs, enables faster service restoration, and lowers environmental emissions.
5) Improved grid integration of selected distributed energy resources (DER) such
as thermal storage for commercial and municipal buildings.
7. Automated Feeder Switches and Reclosers
● Automated feeder switches open and close to isolate the faults and repair the
feeder with the fault to restore power back to customers on line segments
without a fault.
● They are typically configured to work with smart relays to operate in
response to commands from an autonomous control system, distribution
management systems, and signals from grid operators.
● Switches can be configured to close and open at pre- determined intervals
when fault currents are detected.
● This action is called as reclosing of the switches, and are deployed to
sectionalize faulty sections of the feeders and to divert power around the
faulty section of the feeder and re- energize only after the obstruction has
been cleared by itself from the feeder line.
8. Automated Capacitors
● Utilities use capacitive bank (made up of capacitors) to compensate for
reactive power requirements caused by inductive loads from customer
equipment’s, transformers, or overhead lines impedances.
● Compensating for reactive power reduces the total amount of power that
need to be provided by power plants, resulting in a flat voltage along the
feeder, and less energy being loosed as electrical losses in the feeder line.
9. Automated Voltage Regulators and Load Tap
Changers
● Voltage regulators are types of transformers that make small adjustments to voltage
levels in response to changes in load. They are installed in substations.
● At the sub-stations these transformers are called as load tap changers and along
distribution feeders to regulate downstream voltage.
● Feeder monitors measure the load on distribution lines and equipment and can
trigger alarms when equipment or line loadings start to approach potentially
damaging levels.
● Monitors deliver data in real time back to the systemes so that utilities can efficiently
assess the change in load trends and take corresponding actions, such as taking
equipment off service, transferring of load on substitute feeder, or repairing equipment
whenever necessary without causing any power outage.
10. EQUIPMENT HEALTH MONITORING
● Installing sensors on key electrical machinery and infrastructures such as
distribution lines to measure the health of the equipment and can provide
near- real time alerts for any unusual circumstances as well as analytics
that help maintenance engineers plan equipment maintenance,
repair, and replacement.
● This technologies also equips the grid operators with better understanding
to send the maintenance crews relying on the real- time data that has been
diagnosed for the system.
● Several utilities automate monitoring systems to reduce human
interventions during inspections, enable active maintenance, and better
diagnose equipment failures so it can rectified and bought back into service
to prevent any outages.