TETRA for SCADA Challenges in CLP

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Sarah Hodges
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1 TETRA for SCADA Challenges in CLP CCW 2016 Amsterdam Ir. Terrance Lai Digital Systems Manager CLP Power Hong Kong Ltd

2 CLP Group One of the largest investor-owned utility companies in Asia

3 We generate, distribute and provide a world-class electricity supply with a reliability rate of % to 2.48 million Hong Kong customers ( over 80% population )

4 Smart Grid? Wireless applications Leverages advancements in communication and information processing technologies to enable a highly automated and Integrated End-to-End Intelligent Network Smart Grid technologies enable advanced applications such as Demand Response, Time- Of-Use pricing, Self-healing Grids, proactive Outage Management and real time Condition Monitoring

5 Power Consumption & Distributed Generation Power Transmission, Distribution & Interconnection Interconnection Infrastructures CIM-Compliant Integration Bus Power Generation The Smart Grid South China Grid Telecommunications for Condition Monitoring & Controls Control Sensor & Relay Telecommunications for Controls & Sensors Control Sensor & Relay Secured Telecommunication Smart Enterprise Server and Applications Information Portal (Office/Depot) Online Condition Monitoring Digital T Substation Digital D Substation Self-healing Network Smart Meters & AMI Home Display Unit Smart Appliances EV Charging Systems Renewable Distributed Generation System Control Centre DEMS Energy Storage

Communication Network for Smart Grid Smart City/Community New Development Areas TETRA/ Long-range Radio/ RF Mesh Customers at Strategy Locations Generation & Transmission Rural Areas Major LPT/BT

6 Communication Network for Smart Grid Smart City/Community New Development Areas TETRA/ Long-range Radio/ RF Mesh Customers at Strategy Locations Generation & Transmission Rural Areas Major LPT/BT Customers Control & Data Centres Renewable Energy to the Grid Domestic & General Service Customers Central Business Districts (Selective areas) Core Optical Fibre Network RF Mesh/Zigbee for last mile Legend: Transmission Fibre Distribution Fibre Copper Pilot Cable

7 TETRA Radio Architecture in CLP Power PABX Field Crew System Management Mobile Fleet Application Servers TETRA Digital Exchange Remote Control and Monitoring GPLS Application Call Centre System Control Centre TETRA Base Stations

8 Remote Control & Monitoring Remote villages scatter across Hong Kong s hilly terrain, powering by long overhead lines Adverse weather conditions, e.g. hot and rainy summers, typhoons and lightning Communication to over 500 set of Overhead Line Remote Terminal Units (ORTU)

9 Remote Control Unit Integrated into SCADA unit IP65 outdoor cubicle Self-designed TETRA interface Control Cubicle TETRA Radio Unit & Interface Pole Mounted Switch

10 TETRA Data for Automation X Hours Mins TETRA data on power failure Supply in open ring arrangement TETRA data for SCADA communication System Control Centre Remote configure supply network for fast restoration

11 11kV Overhead Line Pole Mounted Transformer Monitoring System Isolator Radio Communication Network 11kV Substation Fuse for spur line Smart Transformer By using radio communication, the loading information of Overhead Line Pole Mounted Transformer can be real-time monitored, achieving proactive fault management to minimize any customer interruption

12 Fault Passage Indicators using TETRA Fast locating problem section of overhead line Shorten linesmen s time in fault location Efficient fault repair and better crew safety

13 Mobile Command Unit An integration of TETRA and high speed wireless communications A reliable device making use of TETRA for operation communication and dispatching Improve emergency response by accessing realtime information right on the spot Leveraging 4G/LTE technologies for speedy access to critical information Supply Status

14 Enhance Crew Safety by Positioning Safeguard staff safety Shorten emergency restoration Strengthen team collaboration

coordination between Hong Kong and Mainland China, competing demands for the

15 Challenges in CLP Hong Kong hilly terrains Communication between SCADA and TETRA infrastructure and security Availability of 800MHz equipment Frequency coordination between Hong Kong and Mainland China, competing demands for the scarce licensed radio spectrum, especially at border areas Cross-border radio interference

measurement efficiency in rural areas with

16 Enhance Field Works with Innovative Solutions Enable communication between SCADA equipment and TETRA through a self-developed TETRA Interface System (TIS) With the innovative TETRA Interface Box (TIB), reboot a remote terminal or inquire its RSSI and serial number through a handset to aid troubleshooting Improve measurement efficiency in rural areas with tailor-made handheld tools Eliminate interference with an enhanced filtering system

17 Further Application of TETRA - AMR MDMS server In-house data network Communication Requirements: Ethernet Interface 3 ~ 7kbps data rate Bi-monthly data retrieval Daily/weekly health check Trial Areas :

Architecture of New Decentralized TETRA Network Solely for data communications Two redundant switching control centres Six base stations and two Network Management Centres Security TETRA Air

18 Architecture of New Decentralized TETRA Network Solely for data communications Two redundant switching control centres Six base stations and two Network Management Centres Security TETRA Air Interface Encryption Class 3 & Authentication A secure Private IP backbone Carrier Redundancy Base stations with TWO carriers, 1+1 carrier redundancy Base stations with FOUR carriers, 2+2 carrier redundancy

19 The SCCH Secondary Control Channel The number of remote units managed under a single base-station depends on the polling cycle and message size The number is less than 40 when using Main Control Channel (MCCH) alone By using SCCH, the figure could be significantly enhanced to 60 and still meeting the threshold requirement Utilization of Control Channel Capacity of Pole Mounted Switch (PMS) to each Base Station Capacity Increase 1 MCCH + 0 SCCH MCCH + 1 SCCH = % 1 MCCH + 2 SCCH = % 1 MCCH + 3 SCCH = % Base station configuration: 2+2 carrier redundancy / 1+1 carrier redundancy. for 1+1 carrier redundancy, 1 carrier is activated, the other is standby; for the 2+2 carrier redundancy, 2 carriers are active, the others are standby Both MCCH & SCCH utilization could be monitored through Network Management System

Awards Recognitions from TCCA, TETRA TODAY and other

2012 Winner of Best Use of TETRA for Private Industry The

Integration of Future Broadband with TETRA The International

20 Awards Recognitions from TCCA, TETRA TODAY and other professionals in the industry The International TETRA Awards 2012 Winner of Best Use of TETRA for Private Industry The International TETRA Awards 2014 Highly Commended in Best Integration of Future Broadband with TETRA The International Critical Communication Awards 2016 Winner of Best Use of TETRA in Utilities Award

21 Hong Kong s Beautiful Night

22 Thank You

CESC Limited Power Distribution for the Future August BCC & I - Power Distribution for the Future

CESC Limited Power Distribution for the Future August 2016 www.cesc.co.in debasis.gupta@rp-sg.in 1 1 Power Distribution for the Future In the coming years, Utilities would need to: Expand the network to