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1. Simulation Studies of Reconfigurable
Communication Networks for Southwest
Offshore Wind Farm South Korea
C-Code 2019
Islamabad Pakistan
March 6-7,2019
Abdul Wahab Raza
Department of Computer Science
Bahria University, Lahore
abdulwahabraza123@gmail.com

2. Content
 Motivation and objective
 Design of Communication Network for Southwest WF
• Overview of WF Communication Network
• Southwest Offshore wind Farm
 Physical Layout
 Communication Network topology
 Performance and Evaluation
• Numerical Analytics
 Dual link Failure
• Modeling and Simulations
 Topology Reconfiguration with Failure
 Simulation Result
• Data Loss
• End to End Delay
 Conclusion

3. Motivation
Harsh Enviroment
Example
 sea Mountain
 High availability of Wind
 Hard to access
 Role of Communication
• Provide Monitoring and control in real time
• Diagnose the problem at early stage
• Reduce the maintenance Cost
• Help in Maximizing the Wind energy
 Design Requirements
• Data Availability with higher Degree
• Fault-Tolerance
• Minimum Cost
• Support Different Qos requirements
• Latency
 Need a robust communication network
• Provide a gaurenteed Data Transmission
• Reconfigures(in case of any fault in network)
• Reduce the redundancy(cost effective)
• Support different Qos Requirements
• Transmits message with a minimum time delay

4. Objectives
 Design Communications network based on physical layout of Southwest WF
 Design Consideration for Network topology
• Use minimum redundancies(reducing the cost)
• Topology with reconfiguration(efficiency)
 Analyze the Network reliavaibility through Numerical Analyses
• Dual Link Failure
 Consider the layout off southwest offshore WF
 Assumes different links failure probability
 Classify the IEC 61400-25 Standard Logical Nodes(Qos Requirements)
• Critical
• Non critical

5. Previous Studies
Previous Studies
•K. Gajraani.el.al studied the problem of resilient communication
network in WSf
•Designed network based on OPNET simulation
•Simulated different failure and recovery scenarious
•Used of Qos for different applications
Limitation of previous work
•Focused only on the use of redundant network resource
•No proper communication model to reduce the
redundancy(Cost effectiveness)
•Based on simulation and did not consider numerical analysis
•Assumed critical and non critical data, regardless of any
standard model

6. L
Numerical ANALYSIS
Network Availability with Dual link Failure
•Property of dual link failure is p²
j
2 1
1
i
j+i
L
N
23
Generalized form of Network Topology
Number of isolated anodes No of Cases
1 L-1
2 L-2
3 L-3
I L-I
L-1 L-(L-1)
Notations
N:Total no of nodes
L:Total no of links
P:probability of link failure
No. of isolated Nodes=L-i

7. Simulation Modeling
Data modeling for a WT
According to required Qos
LN Classes No of Sensors Data
Transmissions
WROT 14 642
WGEN 14 73764
WNAC 12 112
WYAW 7 220
Sub total-1 47 74,738byte/s=0.57
MB
Data Modeling For Mandatory Lans
DATA Rate is Calculated according to
• sampling Frequencies
• #of channels