Using WiMax To Connect Smart Grids Kevin Suitor - Presentation Transcript
Smart Grid Networks Kevin F. R. Suitor VP, Corporate Marketing Redline Communications Inc. Telephone: (905) 948-2299 [email_address]
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“ The nicest thing about standards is that there are so many of them to choose from.”
Ken Olsen, founder of Digital Equipment Corporation, 1977
US computer engineer & industrialist
Definition of Smart Grids
EPRI’s definition of smart grid as “a modernization of the electricity delivery system” to monitor, protect, and optimize operations of its interconnected elements, “from the central and distributed generator … to industrial users and building automation systems …,” gives credence to the Automation Federation’s efforts to ensure the use of internationally recognized standards, like those developed by ISA, and automation professionals’ involvement to the success of the smart grid framework.
Smart Grid Characteristics
Self Heals – The grid monitors itself and automatically detects, analyzes, responds to, and restores grid components or network sections to maintain reliability, security, affordability, power quality, and an efficient state.
Motivates and Includes the Consumer – Individual, business, and industry consumers become integral, active parts of the electric power system. Participating in electricity markets will benefit both the individual consumer and overall system reliability.
Resists Attack – It is critical for the modern grid to address security from the outset, making security a requirement and ensuring an integrated and balanced approach across the system.
Provides Power Quality For 21st Century Needs – Sensitive loads represent an increasing portion of the total power system load. The power quality delivered by the modern grid must be improved to meet the requirements of these sensitive loads. In addition, improvements in the design of the loads will make them more tolerant of distorted power.
Accommodates all Generation and Storage Options – The modern grid will accommodate a portfolio of diverse generation types, necessitating a greatly simplified interconnection process analogous to plug-and-play in today’s computer environment, particularly at the distributed energy resources level.
Enables Markets – The modern grid will integrate electricity markets into the fabric of the electric system because operations, planning, pricing, and reliability are dependent on how open-access markets are designed and instituted. For this reason, it will not only support wholesale electric markets but also retail markets where applicable.
Optimizes Assets and Operates Efficiently – Assets will be managed in concert so that, as a system, they can deliver functionality at a minimum cost. For example, advanced sensing and robust communications will allow early problem detection, preventive maintenance and corrective action.
Value of the Smart Grid
Increase Energy Productivity
Both utility and consumer could become more efficient, thus saving up to 10% in electric usage while conserving finite natural resources
Increase power reliability and quality
Reduce power disturbances by more than 75% by 2020, thus saving customers in excess of $50B through a reduction in outages
Reduce CO 2 emissions
Reduce US total carbon emmisions up to 25%. This would equate to the same CO 2 benefits as planting up to 167 million acres of forest (equal to the state of Texas) and the NO x benefits of taking up to 130 million cars off the road.
Increase safety and security
Reduce potential hazards associated within the grid, by increasing public and worker safety, and ensuring the availability of critical and emergency equipment.
Attributes of Smart Grids
Self healing power systems
Predict and react to disturbances
Optimize generation and loads
Enables visualization of assets
Power system reconfiguration
Communications enabling AMI
Personnel & public safety
Availability of electric assets
Cyber security and private networks
Reliability and Optimization Connectivity Safety & Security
The Power Grid (The Simplistic View) Generation Transmission Sub-Station Distribution (Step Down) Sub-Station Residential High Voltage Lines Medium Voltage Lines
A Reference Architecture for Smart Grids
Smart Grid Verticals Generation Transmission Distribution Industrial Commercial Residential Broadband Wireless Infrastructure and Access Applications
Key application requirements
There are many Utility applications to integrate and connect
Identify and rank the applications in terms of priority
Know the critical requirements and usage cases for each
Source: From IBM Presentation for UTC on Utility of the Future Application Protocol Latency Bandwidth Reliability Scope Security Reclosers DNP3/Serial & DNP/LAN 10s msec <56 kbps Medium P2P + HR Medium Capacitor Banks DNP3/Serial & DNP/LAN 100s msec <56 kbps High HR Medium Remote Terminal Unit DNP3/Serial & DNP/LAN 1000s msec <56 kbps High HR Medium Motor Operated Disconnect DNP3/Serial & DNP/LAN 1000s msec <56 kbps High HR Medium Line Regulator DNP3/Serial & DNP/LAN 100s msec <56 kbps High HR Medium Advanced Metering C12.22/LAN 100s msec 56 kbps High HR Low Interval Data Recorder C12.22/LAN 100s msec <56 kbps Low HR Low Demand Management TBD 100s msec <56 kbps Medium HR Medium MWM Voice G.729 & VoIP 100s msec <56 kbps High P2P + HR NA MWM Data UDP/IP 100s msec 1000’s kbps Medium P2P + HR High Aggregate Serial + IP 100s msec 1000’s kbps High P2P High
Cyber Security Landscape (The good, the bad and the ugly)
Insider Attacks
According to the 2008 Computer Security (CSI) Survey, 44% of respondents indicated insider abuse was their most prevalent problem
Financial Fraud
According to the 2008 CSI Survey, financial fraud accounted for the most expensive incident on average, costing organizations $463,100 on average per incident .
Targeted Attacks
According to the 2008 CSI Survey, 27% of respondents who suffered multiple security incidents said at least one was a “targeted attack” at their organization
“ BOT” Computers
According to the 2008 CSI Survey, dealing with “bot” computers within a corporate network accounted for an average cost of $350,000 per incident .
What do Utilities Need?
High throughput
GIS‐based applications require transmission of large files.
Low latency and advanced multimedia capabilities
Protection & Control, M2M, SCADA & Monitoring, Mobile workforce
QoS and advanced traffic management capabilities
E.g. deep packet inspection, virtual networks
Secure access to protect the utilities’ communications, and, by extension, the safety of their staff and customers.
IP‐based connectivity to facilitate integration of applications with the core IT functions within the utility.
No need for SIM cards
Handoffs to support mobility access , mostly for in‐vehicle and mobile workforce applications.
Cost Efficiency
Keep network costs while capacity explodes – reduce $/Mb dramatically
Easy Installation and Maintenance
Scalability
Support the multiple logical interfaces required for the co-existence of disparate networks throughout the migration times
Last Mile Options for Smart Grid Meter Collection Point Meter Collection Point Commercial Services Wi-Fi Mesh WiMAX PTP Backhaul Utility Control Center Carrier Central Office Broadband Connection Commercial Wireless Smart Meters and Aggregation Backhaul & Transport Control & Management
Network Options for Smart Grid Last Mile Source: Pike Research analyst Clint Wheelock Wireless Option Application Pro Con RF Mesh : Bit rate up to 1 Mbps, variable range, variable frequency Smart meters, distribution automation Able to be customized for specific deployments, self-organizing, self-healing Proprietary, lack economies of scale, equipment can be expensive Cellular : Bit rate at 20-800 kbps, 1-2 mile typical range, frequency 700 MHz to 2.1 GHz Smart meters (AMI), mobile work force management Able to leverage existing networks, low upfront capital investment, short time-to-market, low module cost Recurring cost per megabyte, lack of direct utility control over network Broadband Over Power Lines (BPL) : Bit rate at 256 kbps to 10 Mbps, variable range, frequency at 1.6 to 80 MHz electric carrier Substations, smart meters, monitoring/ control at customer premise, distribution automation Robust capabilities, integrated communications throughout grid and home area network environments, low recurring costs High capital costs, expensive chips and equipment, not widely adopted WiMAX : Bit rate up to 3 Mbps per MHz, range of 1-2 miles, frequency 1.8 GHz, 2.3-3.5 GHz Smart meters, mobile work force management, distribution automation High bandwidth capabilities, low latency Not widely deployed, not yet proven for smart grid deployments, high equipment cost Metro Wi-Fi : Bit rate 1-5 Mbps, typical range up to ½ mile, frequency between 2.4 GHz and 5.8 GHz Smart meters, mobile work force management, distribution automation Low-cost equipment, mesh topology is well-suited for smart grid needs, low latency Not widely deployed, not yet proven for smart grid deployments
Why Use WiMAX in the Smart Grid?
Versatility— support, in any environment, fixed, portable, and remote connectivity to a wide range of devices, from video cameras to handheld devices.
Redline’s Base stations and SUs can be customized to operate in any licensed or license-exempt band from 450 MHz to 11 GHz, with any channelization up to 10 MHz, allowing utilities to benefit from RedMAX in any market in which they operate and leveraging any spectrum available to them.
Carrier-grade performance and reliability— combine high throughput levels (up to 35 Mbps in a 7 MHz channel) with extremely low latency (below 15 msec) and jitter.
Security — Data transmission security is provided by over-the-air encryption with the Advanced Encryption Standard (AES).
Why Use WiMAX in the Smart Grid?
Applications support — enable full support for smart grid applications, including those that require Voice over Internet Protocol (VoIP), video (uplink and downlink), Virtual Private Network (VPN), and dynamic Quality of Service (QoS).
Utilities can optimize the network to host multiple concurrent applications with different requirements to ensure that mission-critical and emergency communications have priority over other traffic, and to establish fine-grained policies for different applications and terminal devices.
Standards-based approach— WiMAX is a standards-based approach to technologies that give electric utilities the flexibility to expand their network through time and according to their changing needs.
With its adoption of Orthogonal Frequency Division Multiple Access (OFDMA), WiMAX is the most advanced wireless broadband technology commercially available.
Entirely based on IP to allow utilities to benefit from a flatter, less complex network core structure and to facilitate integration with the rest of the smart grid network.
Range— Use Multiple Input Multiple Output (MIMO) technology to extend the base station range.
For PMP links, some base stations have a range of up to 12 miles (20 km) in Line Of Sight (LOS) conditions and of up to 2 miles (3 km) in non-LOS conditions.
For a Point-To-Point (PTP) link in LOS, the range can extend to 28 miles (40 km).
Which Technology is The Right Fit? Customer Need Customer Weighting WiMAX Wi-Fi Mesh Proprietary RF Mesh BPL Commercial Services Performance Supplier Choice Reliability Reusability Compatibility Features System Options Usability Security Price Total Weighted Score
Using WiMAX to Connect the Smart Grid Residential customers
AMR (Automatic Meter ) / AMI (Automatic Meter Infrastructure)
Real-time time-of-day pricing using Demand-Side Management ( DSM)
Home displays
In-home energy conservation management
Smart appliances
Fault and outage detection and management
Solar panels management
Optional add-ons :
Home security
Broadband services
Business customers
AMR/AMI, industrial metering
Remote surveillance and monitoring
Remote load shifting
Real-time time-of-day pricing using DSM
Fault and outage detection and management
Generation and distribution
Supervisory Control And Data Acquisition (SCADA)
Distributed Control Systems (DCS)
Fault and outage detection and management
Remote surveillance and monitoring
Asset tracking
Remote control
Energy Management Systems (EMSs) with grid optimization applications (self-healing, self-restoration)
Mobile assets and remote workforce
Fleet telematics and Automatic Vehicle Location (AVL), with Location-Based Services (LBS) supported by Global Positioning System (GPS)
Broadband connectivity to in-vehicle modules, laptops, and handheld devices to support and monitor the remote workforce. Applications include mobile dispatching, reporting, remote video or VoIP consultations, data sharing within the utility’s Virtual Private Network (VPN), and Geographic Information System (GIS) applications
Emergencies
Broadband connectivity to affected area during disaster recovery or in response to faults. Cell On Wheels (COW) connects staff, vehicles, and, in some cases, selected customers
Coordination of emergency response, data sharing, remote consultation with off-site staff, and communication and coordination with safety agencies
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