Scalability and Architectures
Transcript of Scalability and Architectures
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Scalability and Architectures
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Smart Grid Communication
Scalable Communication Architecture
Smart Grid Communication Architecture
Optimal Deployment
Scalability Analysis
Performance Evaluation
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Smart Grid Communication
Scalable Communication Architecture
Smart Grid Communication Architecture
Optimal Deployment
Scalability Analysis
Performance Evaluation
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Centralized Fossil Fuel Aging Outages, Congestions Vulnerability to
disasters
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Cyber-Physical System
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Smart Grid Domains
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Advanced Metering Infrastructure (AMI)
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AMI ◦ Measuring
◦ Collecting
◦ analyzing
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Long-Term Data Storage/Management
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Challenge: How to build a scalable Communication Infrastructure
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Centralized AMI
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Poor Scalability ◦ Huge interaction between distant entities
◦ High communication cost of collecting/usage
◦ High Probability of bottleneck
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Scalability Analysis ◦ Define suitable performance metric
◦ How metric scales with communication needs
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Smart Grid Communication
Scalable Communication Architecture
Smart Grid Communication Architecture
Optimal Deployment
Scalability Analysis
Performance Evaluation
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Scalability: ◦ Ability to gracefully handle growing responsibilities
Easiness in increasing resources for growing load
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Scalability Measure ◦ Accumulated Bandwidth-Distance Product (ABDP)
Measures the interaction between entities
Model communication resources/costs
Estimate of energy expenditure (one-hope communication)
Estimate of number of hopes in routing
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Smart Grid Communication
Scalable Communication Architecture
Smart Grid Communication Architecture
Optimal Deployment
Scalability Analysis
Performance Evaluation
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Centralized
Distributed MDMS
Fully Distributed System
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Facilitate the management
Non-scalable ◦ Performance of communication
Bottleneck, delay, loss….
◦ Data processing
◦ Communication resources
Long path, bandwidth, hops….
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Centralized
Distributed MDMS
Fully Distributed System
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Scalable ◦ Shortening distance
◦ Reducing resources
◦ Reducing processing by rectifying data
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Centralized
Distributed MDMS
Fully Distributed System
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Scalable
Reducing communication costs between MDMS and operation center
Constant bandwidth between distributed and central server
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Smart Grid Communication
Scalable Communication Architecture
Smart Grid Communication Architecture
Optimal Deployment
Scalability Analysis
Performance Evaluation
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Practical deployment ◦ Cost of MDMSs
◦ Communication costs:
Distance
Bandwidth
◦ Architecture
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Distributed: Minimizing the total cost
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Distributed: Minimizing the total cost
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Un-capacitated facility location problem
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Decision Problem ◦ Answer: Y/N
◦ P: polynomial-time algorithm
◦ NP: polynomial-time algorithm
with non-deterministic machine
◦ NP-hard (Non-Deterministic
Polynomial-time hard) problem
[Traveling Salesman Problem]
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There is no effective method
Complexity increases exponentially with M, N
Heuristic (approximate) algorithms
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Smart Grid Communication
Scalable Communication Architecture
Smart Grid Communication Architecture
Optimal Deployment
Scalability Analysis
Performance Evaluation
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Total Cost: ◦ Centralized
◦ Distributed
◦ Fully Distributed
◦ TotCost(C)>TotCost(D)>TotCost(F)
◦ TotCost(C) linrealy increases with parameters
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Accumulated Bandwidth-Distance Product ◦ Centralized
◦ Distributed
◦ Fully Distributed
◦ ABDP(C)>ABDP(D)>ABDP(F)
◦ Fully distributed is more scalable than Distributed
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Smart Grid Communication
Scalable Communication Architecture
Smart Grid Communication Architecture
Optimal Deployment
Scalability Analysis
Performance Evaluation
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Impact of Smart Meters on Scalability Analysis ◦ distance and data rate
◦ Number of Smart Meters
◦ Unrealistic Simulation Results
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Scalability Analysis is too asymptotic based on many simplifications ◦ Other-cell Interference
◦ Cost of Concentrators
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Wireless and backhaul Capacity in Decision Making Process ◦ Between concentrators and MDMS
◦ Between MDMS and Central Server
QoS requirements ◦ Cost of Security
◦ Cost of Latency
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Questions?