Micro grid architecture and the security issues related to it.

1. MICRO GRID: SECURITY
ISSUES AND SOLUTIONS
PRESENTER:
SILPA P S
AMRITA VISHWA VIDYAPEETHAM
AMRITAPURI

2. CONTENTS
 Introduction
 Advantage of Smart Grid
 Need for Micro Grid
 Architecture of Micro Grid
 Cybersecurity in Micro Grid
 Security Issues and Solutions
 Most Common Attacks and Solutions
 Conclusion

3. INTRODUCTION
Smart Grid: Smart Grid is an
integration of Electrical and
Digital technologies,
information and communication
Source:
http://www.vanadiumcorp.com
SMART
GRID
POWER
GRID
ICT

4. ADVANTAGE OF SMART GRID

5. NEED FOR MICRO GRID
• With smart grid, we're talking about dams, massive solar farms etc. The scale is extremely large.
• Microgrid is a small-scale power supply network that is designed to provide power for a small
community.
• It enables local power generation for local loads
• It comprises of various small power generating sources that makes it highly flexible and efficient
• It is connected to both the local generating units and the utility grid thus preventing power
outages.
• Excess power can be sold to the utility grid.
• Size of the Microgrid may range from housing estate to municipal regions

6. ARCHITECTURE OF MICRO GRID

7. CYBERSECURITY IN MICRO GRID
• Power grid is a huge, complex, critical and expensive infrastructure.
• ICT makes the grid Smart
 Real time monitoring (PMUs, Smart meters)
 Advanced information analysis (Big data)
 Automated control (Self-healing, Smart actuators)
• ICT also make the grid Vulnerable!!!
• The security goal in Smart grid is the Availability, Integrity and Confidentiality
• Some solutions were proposed to solve security issues in the smart grid, vulnerabilities
still exist.

8. SECURITY ISSUES & SOLUTIONS
• Man-in-the-middle attack
• Reliable data transmission protocols with ACK and NACK feedback mechanism.
Intelligent module: Monitor
the distribution pole
• Denial of Service (DoS)
• Security firewalls used to differentiate between legitimate and malicious traffic
• Increase in bandwidth
ZigBee: Communication
module
• Confidentiality and Integrity
• Cryptography-Hashing the data
Smart controlling station:
Billing and data storage

9. MOST COMMON ATTACKS AND SOLUTIONS
To ensure valid data transmission : OTP, MAC, Time stamp technique
Effect communication channel: DSSS spread spectrum, In built 128 bit AES encryption
standard
Key management : Public key infrastructure (PKI), ensures security by verifying the true
identity of the party. The advantage of symmetric key management over the PKI is speed
and efficiency
Replay attack
Jamming
Authentication

10. CONCLUSION
• Smart grid has numerous benefits like lower cost, high reliability and efficiency.
• ICT are at the core of successful smart grid implementation, which can improve
reliability, security and efficiency.
• A Power grid can be make smart grid by using the combination of information
technology, communication technology and electrical system.
• Cyber security in the smart grid is still under research and needs more investigation to
overcome the vulnerabilities and threats.
• Cyber security in the smart grid is a critical issue that received attention of researchers
and industry professionals.

11. THANK YOU

12. REFERENCES
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