Advanced Network Solutions for Electric Power Application
description
Transcript of Advanced Network Solutions for Electric Power Application
Slide 1
1
Advanced Network Solutions forElectric Power Applications
George Wang
Presentation for IEEE Student Branch
Slide 2
Introduction and Background
• Electric power is essential to our life and the economy
• Power systems are getting more and more sophisticated and smarter
• Teleprotection plays a key role• Telecommunication and network technology
have changed our life• Communication network is more and more
important for electric power• Next big wave
Slide 3
3
Generation Distribution
Transmission Grid: 110 kV upDistribution Grid: 50 kV down
Transmission
Slide 4
4
Generation DistributionTransmission
Basin Electric
Tri-State Electric
Rushmore Electric
Central Iowa Power
Brazos Electric
Chugach Electric
CenterPoint Energy
Knoxville Utilities
INDE (Guatemala)INDE (Institute of National Electrification): the largest electric generation and transmission company owned by Guatemala government.
To build an advanced communication network
A big substation
Slide 6
6
Communication in Substations• Need channel banks for voice (phones) and data• Need mux to connect to a radio• Dry contact for house keeping alarms• Data Bridge for the subrate data• Some customers still interested in OCU-DP card• LV/LV+ used as configuration tools• Ethernet for service computer access• RS232 for RTU• -125VDC power• One box does all
Substation hardened. IEC 61850-3 / IEEE 1613
Slide 7
ANSI Standard Device Numbers (IEEE Standard C37.2)
1 - Master Element2 - Time Delay Starting or Closing Relay3 - Checking or Interlocking Relay4 - Master Contactor5 - Stopping Device6 - Starting Circuit Breaker7 - Rate of Change Relay8 - Control Power Disconnecting Device9 - Reversing Device10 - Unit Sequence Switch11 - Multifunction device.12 - Overspeed Device13 - Synchronous-speed Device14 - Underspeed Device15 - Speed - or Frequency, Matching Device16 - Data Communications Device17 - Shunting or Discharge Switch18 - Accelerating or Decelerating Device19 - Starting to Running Transition Contactor20 - Electrically Operated Valve21 - Impedance (21G implies ground impedance)24 - Volts/Hz
Device numbers are used to identify the functions of devices shown on a schematic diagram. Function descriptions are given in the standard. These types of devices protect electrical systems and components from damage when an unwanted event occurs, such as an electrical fault.
27 - Under Voltage (27LL = line to line, 27LN = line to neutral/ground)40 - Loss of Excitation (generator)47 - Negative sequence voltage50 - Instantaneous overcurrent (N for neutral, G for ground current)51 - Inverse Time overcurrent (N for neutral, G from ground current)59 - Over Voltage (59LL = line to line, 59LN = line to neutral/ground)62 - Timer64 - Ground Fault (64F = Field Ground, 64G = Generator Ground)79 - Auto-reclosure81 - Under/Over Frequency86 - Lockout Relay / Trip Circuit Supervision87 - Current Differential (87L=transmission line diff; 87T=transformer diff; 87G=generator diff)91 - Voltage Directional Relay92 - Voltage and Power Directional Relay93 - Field Changing Contactor94 - Tripping or Trip-Free Relay
Slide 8
Suffixes and Prefixes
“N” suffix: Neutral wire. 59N in a relay is used for protection against Neutral Displacement "G" suffix: "ground", hence a "51G" is a time overcurrent ground relay“S” for Serial “E” for Ethernet. “C” for Security Processing Function {i.e. VPN, Encryption}“F” for Firewall or message Filter“M” for Network Managed Function “R” for Router“S” for Switch “T” for Telephone Component.
Thus “16ESM” is a managed Ethernet.
A suffix letter or number may be used with the device number
Slide 9
Power Quality and Protective Relays
Power quality can be defined by four fundamentalparameters: Frequency, Amplitude, Shape, and Symmetry
Power quality is affected by a wide range of disturbancesthroughout the transmission and distribution network.
It is necessary to implement various measures in order to minimize the negative effects on customers.
Depending on which of the power quality parameters is distorted the influence on the performance of digital protection relays will be different.
Slide 10
Protection Relaying over All Communication Media (ABB)
Slide 11
11
Telecom Networks: PDH, SDH, and Ethernet
STM-16 (OC-48) Ring
O9340S
E3/T3/E1/T1Gb EthernetSTM-1/4 (OC-3/12)STM-4/1 (OC-12/3) Ring
Loop-iNMS
O9500
E3/T3/E1/T1Gb Ethernet
Bonded G.SHDSL.bis
O9400S
E3/T3
H3308S
Ethernet Backbone GbE
O9400R
TDMoE
{H3304R / H3308R / O9340R}
EthernetAM3440
O9400R O9400R
O9400R
O9400R
O9500
V4100
GbE/Ethernet/E1C5600
Proprietary GbE
GbE E1/T1
2G BTS3G/3.5G Node B
E1/T1/DTEGbE/Ethernet/G.SHDSL
FOM/E&M/FXS/FXOC37.94/DryContact
E1/T1E3/T3 E1/T1
G.SHDSL
E1/T1/DTEEthernetG.SHDSLFOM/E&MFXS/FXO
W8140(or Radio)
W8140(or Radio)
WiFi or wave
Ethernet
FOM SPRing
AM3440
AM3440
E1/T1/DTE/G.SHDSLFOM/E&M/FXS/FXOC37.94/DryContact
EthernetIP6700
E1/T1/E3/T3Ethernet
E1
E1 SPRing / E1 DS0 SNCP
AM3440E1
E1 E1AM3440
E1
STM-1 (OC-3)
Ethernet RSTP/ LEAPS Ring
FOM
IP6810
RS232/RS485/Ethernet/DryContact
IP6810
RTUIP Camera
Slide 12
12
Electric Power Industry Application:Data and Voice Communications
RTU Host
SecurityServer
SONET/SDH Network
PBX
Management Center
FXS
RTURS232
10/100Base-T
Security Terminal
V.35
T1/E1
RTURS232
10/100Base-T
Security Terminal
V.35
T1/E1
Remote
Sub-station
B
AM3440
V4200-9
PSTN Data-Base
Server
Remote
Sub-station
A
T1/E1
FXO
V.35 RS232
10/100 Base-T
LoopView
FXS
AM3440
SCADAController
E&M
ModemE&M
Intelligent Transmission &
Distribution
Slide 13
13
DCS-MUX Product Example
Substation hardened. IEC 61850-3 / IEEE 1613
Slide 14
14
Interface Cards
Substation hardened. IEC 61850-3 / IEEE 1613
Slide 15
15
Loop O9400R (SDH/SONET)
O9400R STM-1/4/16 (OC-3/12/48) ADM
Slide 16
16
Dry Contact: Network Application
Slide 17
17
Telecom Room
Slide 18
18
Slide 19
19
DS0 SNCP Protection
Slide 20
20
T1 Radio: 1 for 1 protection
Network
Leased line Provider
T1 Radio
T1
T1
T1
T1
T1 T1
AM3440:
T1 1 for 1 protection
AM3440:
T1 1 for 1 protection
Note:
1. “Network” and “Leased line” shall support Alarm forwarding.
2. The switching time of T1 1 for 1 protection at AM3440: < 50ms
Slide 21
21
Network Management System (NMS)
Loop-iNMS:
• iNMS core
• Device Poller
• iNMS GUI Clients
Capability:
• Full FCAPS
• System Redundant
• System Protection
Slide 22
22
Disaster Recovery (DR)DR (Disaster Recovery)
PrimaryiNMS server
Ethernet
SecondaryiNMS server
Primary Database
Secondary Database
DBDB
GUI clients
Device Poller
#1
Device Poller
#2
DevicePoller
#N
… Device Poller
#1
Device Poller
#2
DevicePoller
#N
…
GUI clients
Sync. By oracle job
…NE#1 NE#n
trap trap
#primary site
#secondary site
Slide 23
23
Alarm Monitoring View
Alarm View on Network Topology
Active Alarm List
FCAPS - Fault Management
Slide 24
24
View – NE Panel View
Basic Feature - View
Slide 25
25
Power Application-1 (Swiss Project) Case Study
Slide 26
26
Power Application-1 (Swiss Project) Case Study
Slide 27
27
Power Application-2 (Central America Project) Case Study
Slide 28
28
Case Study
Power Application-3 (UK Project)
Slide 29
29
Microwave Connection with Optical Ring Protection
MMU2ENPU3 MMU2ELTU155LTU155
LTU155QT1
LTU155
FXS/FXO/E&M/RS232/V.35….
FXS/FXO/E&M/RS232/V.35….
OC-3/12 Ring
LTU155QT1
SONET MUX O9500R
SONET MUX O9500R
SONET MUX O9500R
SONET MUX O9500R
FXS/FXO/E&M/RS232/V.35….
Slide 30
30
Case Study
Power Application- 4 (US Project)
960 MHzSite A
960 MHzSite B
960 MHzSite C
AM3440A Chassis2 x T12 x FXS1 x 4w E&M1 x DS0 for Dry Contact
AM3440A Chassis3 x T1 (one for expansion)1 x FXS1 x DS0 for Dry Contact
AM3440A Chassis2 x T13 x FXS1 x 4w E&M2 x DS0 for Dry ContactTo External Alarm Device
Slide 31
31
Central Control Room
Optical Fast Ethernet Ring
WAN 2
IP phone
LAN1
LAN2
IP camWAN 1
IP6810
WAN 2
WAN 1LAN1
LAN2IP phone
IP6810
RTU
WAN 2WAN 1
IP phone
W8110
Wireless IP cam Wireless IP cam
LAN1
IP6810
IP6810WAN 2 WAN 1
LAN1LAN
NAS(Network Attached Storage)
NDR(Network Disk Recorder)
SIP Proxy
IP6810 Self-Healing Ring Network Termination Unit
Ethernet Device Application
Substation hardened. IEC 61850-3 / IEEE 1613
Union Fenosa
Communication Protocols: fight for standards
• A set of communications protocols used by SCADA Master Stations, substation computers, RTUs, and IEDs
Protocol Evolution
Modbus1979
IEC 618502003
IEC 60870-51990-1995
DNP31993
More on DNP3• Mostly specified at layer 2: multiplexing, data fragmentation, error
checking, link control, prioritization, and layer 2 addressing services for user data.
• Created to allow interoperability between various vendors' SCADA components for the electrical grid
• Developed by GE-Harris Canada in 1993, and based on the earlier part of IEC 60870-5 protocol to cater North American requirements.
• Related protocols
– Modbus (Older protocol)
• DNP makes it more robust, efficient, and self compatible.
– IEC 60870-5
• Similar protocols. DNP and IEC 60870-5 have been specified in IEEE P1379
– IEC 61850
• A rising star with new technologies
DNP3 vs. IEC 60870-5• Both are used world-wide, but selection is often based on location
– DNP => Dominant in North America & industrialized Southern Hemisphere countries
– IEC 60870-5 => Dominant in Europe & Middle East
– In most of Asia and South America both are used almost equally.
– DNP has gained wide acceptance in non-electric power applications, where IEC is little used.
• DNP and IEC 60870-5 are Not Compliant to each other. They are slightly different in Physical, Data Link, and Application Layers. DNP adds also a Transport Layer.
• To perform some functions, IEC 60870-5 sends many small messages where DNP will send a smaller number of larger messages
• The larger number of low-level configuration options in IEC 60870-5 tends to require greater knowledge on the part of a system integrator to successfully commission devices
DNP3 vs. IEC 61850• Over the past decade, in the struggle for standardization, DNP3 has
been successful and becomes the de facto standard
• However, DNP3 used “old technology” originally such as serial protocol
– Shift to Ethernet was obtained by packetizing the serial protocol in an Ethernet fashion. It certainly serves the purpose, but is not a true solution to a robust Ethernet protocol
– An object-oriented protocol for DNP3 or Modbus was unachievable
• IEC 61850 is called a “Rising Star”, a true, high-speed, robust, interoperable protocol
– “As information technology becomes more advanced, standards-based, networked technologies via Ethernet are becoming the preferred solution. Object-oriented, self-describing languages will help make substation integration less cumbersome, and that’s the goal of IEC 61850.”
• The use of IEC 61850 in North America is difficult because of the strength of DNP3 in this market
• In order to sell into North America Market, we need DNP3 compliance
Who supports DNP3?GE EnergyCooper Industries (Electrical) Schweitzer Engineering LabGarrettCom
ABBAreva T&DSchneider ElectricSiemens Energy Inc.Motorola Communications ISRAEL
Slide 39
39
Country Coverage
Installation in 70 countries
E. Europe• Czech• Bosnia• Croatia• Macedonia• Slovakia• Slovenia• Yugoslavia
Asia • S. Korea• China• Taiwan• H.K.• India• Pakistan• Thailand• Singapore• Indonesia• Philippines• Kazakhstan• Macao• Brunei• Malaysia• Vietnam• Turkey• Burma/Myanmar• Bangladesh• Sri Lanka
Middle East• Lebanon• UAE• Bahrain• Israel• Syria
South America• Columbia• Brazil• Ecuador• Peru•Argentina•Uruguay
USA
China
Africa• Egypt• Tunisia• Libya• Ghana• S. Africa• Benin
• Russia• Poland• Romania• Ukraine• Lithuania• Bulgaria
C. America• El Salvador• Mexico
W. Europe• Norway• UK• France• Belgium• Spain• Netherlands• Sweden• Portugal• Luxembourg• Italy• Greece• Germany• Switzerland
Oceania• New Zealand• Australia
N. America• USA
49/68 49/68 54/70 54/70
Slide 40
40
George Wang Director – America Market
Phone: +1.630.877.0031 (USA)
www.looptelecom.com