Transcript Power Line Communication (PLC)
Power Line Communication (PLC) is an important part of a Smart Grid
Mr. Sumanta Pal Yitran November, 2012
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Agenda
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What is Smart Grid ?
About PLC Where does PLC fit in Smart Grid?
About PLC Standard activities Applications and Markets Case studies About Yitran 2
What is smart Grid?
Smart Grid Applications Smart Grid Management & Control Business Intelligence Applications EMS/NMS/SGMS Distribution Network Control Home Appliance Control Automatic DR Applications Infrastructure AMI Applications Demand Response Other Applications AMI/AMR Smart Meters Smart Home Elements 3
Why do we need a Smart Grid?
• Reduce peak to average consumption from the Utility point of view • Reduce the power consumption during peak demand periods • Enable Utilities to get real time information regarding each device/Meter on the Grid • Enable adaptive tariff according to the consumption (TOU)
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About PLC
PLC is a “No New Wires” technology, which uses the standard existing electrical wiring as the physical medium for communication.
The electrical wiring medium was originally devised for transmission of power at 50-60 Hz !!
Signal attenuation at frequencies that can be utilized for PLC is fairly high.
Electrical appliances introduce a variety of noise signals and interferences such as carrier wave signals, spikes, pulses, bursts and more.
Conclusion – Reliable and robust modem, yet low cost, is a MUST to enable ubiquitous networking and control using PLC.
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Where PLC can fit?
Smart Grid Applications Smart Grid Management & Control Business Intelligence Applications EMS/NMS/SGMS Distribution Network Control Home Appliance Control Automatic DR Applications Infrastructure AMI Applications Demand Response Other Applications AMI/AMR Smart Meters Smart Home Elements 6
GPRS
Utility Grid
GPRS GPRS 1 2 3 300 PLC Network #1 1 2 3 200 PLC Network #2 CFE GPRS 1 2 3 220 PLC Network #N
Back Office Sub Station
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LV Transformer
PLC – GPRS Bridge PLC Network Concentrator
GPRS
1. One Concentrator under the transformer 2. Up to 1000 Smart Meters 3. Each Meter can serve as a repeater 1 2 3 PLC Remote 400 PLC Remote 8
Home Demand Response:
Higher price indication, encourages consumers to reduce demand, thereby reduce the peak demand for electricity.
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PLC Communication
PLC Modem • TDD – Time Division Duplexing • Operate between 9Khz-500Khz • Rates 5Kbps up to 500Kps • Modulation: Spread Spectrum, OFDM, SFSK • PLC Networking Layer – “Mesh”
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Standards Activities
• HomePlug CC • ITU G.hnem activity • IEEE P1901.2 activity • PRIME – Ibedrola initiative • G3 PLC – Cooperate with EDF • Others Yitran is a main contributor of HomePlug CC, ITU G.hnem, IEEE P1901.2 and lately G3-PLC
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Markets & Applications
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AMR/AMM/AMI Products
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Split Meter/Load Control
ESKOM / UtilLabs Load Shifting System Metering outside the Homes
IT700 Inside
Display in the Home 14
Smart Home Product 15
Street Light Products
Bulb Life: 1 week Status: Ok 16
Solar Panel Products
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Case Study
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Last Mile Communications System
Case Study – PLC – Eskom Utilities, South Africa Challenge
Eskom needs to perform load management among • the residential and industrial customers in order to meet the demands for energy from the industrial sector for economic growth.
The deployment of Universal Load Controller device • that allows every household to apply load-shedding to itself, rather than have Eskom do it on a broad scale.
Concept
Use of PLC technology to provide the last mile • access from the substation to the distribution box outside the home The PLC communication network to connect 30,000 • homes, next stage is in plan.
Result
The use of the PLC communication network enables the ULC pilot to conclude successfully.
Approach
The distance between the substation and the distribution box at the home can • sometimes exceed 1Km.
A robust PLC technology is used to provide the reach without the use of any repeaters •
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Last Mile Communications System
Case Study – PLC – Belgorod, Russia Challenge
An AMR solution is required for the city of Belgorod, Russia.
Concept
The use of PLC technology for the last mile communication network for the AMR solution.
Approach
The inherent condition of the power • grid in Belgorod poses a great challenge to the use of PLC technology A robust PLC is deployed, including full • AMR and networking firmware, to overcome the challenges.
Result
Use of the PLC technology enables the success of the AMR project. Already installed 150K units.
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Last Mile Communications System
Case Study – PLC – Mexico Challenge
An AMR solution is required for Mexico – Antitheft System
Concept
The use of PLC technology for the last mile communication network from the transformer into an IHD device within the home.
Approach
The losses of electricity are close to • 30%. Measuring modules are installed on top of the MV/LV transformer. In the home there is only an In Home Display A robust PLC is deployed, including full • AMR firmware, to overcome the challenges.
Result
Use of the PLC technology enables the success of the project. Already order 200K units.
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Yitran is a leading fabless IC company, developing and providing state of the art Narrowband Powerline Communication (PLC) ICs and solutions.
Location
Headquarters – Beer Sheva
Global offices in U.S., Russia, China, India.
Personnel
40 total employees / 19 in R&D Product Offerings
Yitran IT800/700/900/1000 PLC chips
IT700/900/1000 Modules
ZigBee+ Residential RF-PLC solution
Y-Net/Y-Net+ RF-PLC dual network platform
Y-Net Evaluation / Development Tools Technology Features
Highly robust, low cost and simple setup solutions
Unique DCSK patented modulation techniques
Over 25 issued patents and more pending
Baseline technology for setting new OFDM based industry standards Applications
Energy Management/Smart Grid
Home/Building Automation
Commercial Automation and Management
Solar Panel Monitoring and Control
Street Lights Monitoring and Control
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The benefits of using Yitran ’s PLC
Using the existing Power Line infrastructure
– Simple installation • PLC unit integrated in the unit • No need for additional components ( e.g. antenna ) • Automatic network creation – Cost effective • One chip solution including AFE • Application embedded in the PLC chip • Support - Remote software download ( maintenance)
Performance
– More then 90dB dynamic range – Distance – can communicate over 1Km point to point – Designed for Command and Control – High reliability – Low power consumption
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T
HANK
Y
OU
Yitran Communications Ltd.
Sumanta Pal Technical Marketing & Support Manager [email protected]
Mob: +91 9930789945 www.yitran.com
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