new epcc workshop 2019 - 15 epcc workshop - may 12 – 15, 2019 … haowang.pdf · 2016. 11. 7. ·...
TRANSCRIPT
Implementing a New Energy Management System
for the China Southern GridPresented at
10th International Workshop on Electric Power Control Centers
Hao WANGDispatching Center, CSG
June 2009
China Southern Grid
Overall System Control Hierarchy of CSG
Guangdong Province
Guangxi Province
YunnanProvince
GuizhouProvince
Hainan Province
ChinaSouthern
Grid
Areas Areas Areas Areas
Counties/Cities
Areas
Counties/Cities
Counties/Cities
Counties/Cities
Counties/Cities
Configuration of CSG-EMS
Backup
System
人机交互网交换机#3#4
Three screens Dispatcher x4
B/WPrinters
Networked RTUs & PMUs
Development & Maintenance
Workstation x6
Historical Data Server
Operations Planning
Workstation x3
Network Switches
ReportsWorkstation x2
Wall Display Protection Workstation
SCADA/AGC Server
EMS Application Server
DSA Servers
Dispatching Data Network
5 Provincial EMS
Metering System& other LocalAutomation
Systems
Comms& ICCPServer
Front End & Data Gathering
Server
Serial RTUs
Dedicated Channel
CSG DTS
System
ColorPrinter
MgmtUsers
Web Hosting,Historical Mirror,
Reports
Web Server System
IndependentSystem Monitor
Disk Storage
5 Prov. DTS
System
Model MergingServer
Modules of CSG-EMS
Data Bus
DB PI
SCADA EMS Analy.WAMS
DSA Visualization
Safe Area I
CSG Joint DTS
DB PI
WEB
Safe Area III
Safe Area II
Local DTS
R T U
P M U
I
C
C
P
Prov. EMS
Model Merging
L
F
O
D
S
E
D
P
F
C
A
N
S
O
P
F
AGC AVC
S
C
A
P
S
C Report
Model Merging >> Concept
Major Challenge: database-updating requirement imposed by the fast growth of the CSG grid.
Capability of supporting frequent on-line database changes and power-system model updates.
Each of the provincial control center is responsible to update the data of its own EMS on a daily basis.
Conceptually, the full power system model for the entire CSG grid, used in the CSG-EMS, is a merged model of the five individual province-EMS’s models, with the boundary areas among the provinces properly represented and adjusted.
Model Merging >> Procedure
~
~
~
Upload
YN GX GD
~
GZ
Merging
Model Merging >> Result
Models exported from Province-EMS in CIM-XML format, together with exports of related display files in SVG format, as well as SCADA measurement-point definitions in ICCPdescription file.
Real-time data and displays from Province-EMS are kept up-to-date through ICCP link and SVG re-link.
The merged full model covers all the 500kV and 220kV devices in CSG grid. And it can be updated whenever there is a change in one or more Province-EMSs.
EMS analytical results become much more accurate. Besides, the full model could be shared with the province.
Visualization Example 1
Generators’ loadings, and the transmission line flows.
Visualization Example 2
Relative voltages of different buses by contour lines.
Historical Data Recording and Recalling
Using a PI system, all 500kV and 220kV data, as well as PMU data are being recorded continuously.
Instead of event-drive or PDR, but a holographic storage of the historical data.
The historical data can be recalled through displays at any later time.
Conclusion
The new Energy Management System for the China Southern Grid is a state-of-art system.
Several of its functional capabilities are pace-setting in China, and are comparable in the world.
Successful experience of applying CIM and SVG standards to exchange models and displays for a large power system.
CSG-EMS has been installed and put into operation in the CSG control center in Guangzhou, China.
Thanks !
Hao WANG Automation Division, Dispatching Center, CSG
Wenfeng ZHANGDeputy Director, Dispatching Center, CSG