Meeting the Demands of Power Hungry China through a Real-time Data Driven Enterprise Platform

Transcription

1 Meeting the Demands of Power Hungry China through a Real-time Data Driven Enterprise Platform Place your company logo in this area. Then delete this text box FibrLINK Dr. Jun Zha EMS Users Conference San Diego, September 18, 2006

2 AGENDA Power Hungry China Facing the Challenge Power Generation Solution T&D Solution WAMS (Wide Area Measurement Systems) Next Generation EMS Q&A

3 Power Hungry China How to sustain China s GDP Growth Rate: Suppose China wants to sustain its GDP at 10% rate for the next decade China needs to add additional MW of new generation capacity per year It s equivalent to 2/3 of current total generation capacity of Great Britain This is equivalent to one new 1000 MW power plant every week Total investment of $590 Billion US --From China Electricity Council

4 State Grid Plan(11 th 5 year plan) Power Generation North China Northeast Northwest China Year China 2005 East Year China 2010 Central South National China China Avg./yearTotal Energy Installed Gen. Gen. (TWH) Capacity (GW) Increase Energy Capacity Gen. (TWH) (GW) Energy Hydro Hydro Gen. Capacity Gen. (TWH) (GW) Energy Demand Increase Energy Gen. (TWH) Capacity (GW) (TWH) Energy Coal Gen. (TWH) Coal Gen. Capacity (GW) Increase Energy Gen. (TWH) Installed Increase Capacity (GW) Energy NG Gen (TWH) Capacity NG (GW) Gen. Capacity (GW) Increase Energy Gen. (TWH) Increase Capacity (GW) Energy Nuclear Gen. (TWH) Nuclear Increase Gen. Capacity Energy Gen. (GW) (TWH) Energy Demand Energy Others Increase Gen Capacity (TWH) (GW) (TWH) Others Increase Gen. Capacity Energy Gen. ( (TWH) Installed Increase Capacity (GW) Capacity (GW) Year 2005 Year % 6.8%

5 State Power Co Number(Next 5 Years) Substation Project One Typical Projects Province that are Planning Power Substation Transmission Project Development (Year building 2006 year -2010) KVDC Capacity (MW) 500KVAC Qty 750KVAC Capacity (MVA) 500KVAC Capacity (MVA) 750KVAC Qty 500KVAC Qty 500KVAC Capacity (MVA) 220KVAC Qty 220KVAC Capacity (MVA) 500KVDC Qty 2 330KVAC Qty 330KVAC Capacity (MVA) 3, KVAC Qty 64,000 6, (extend) 39,500 3,000 33, KVAC Capacity (MVA) 26, (extend) 11

6 Five Level Dispatch Architecture NATIONAL CONTROL CENTERS northwest northeast north central east south Twenty-three provinces Five municipalities Four duchies The city under the province municipality, duchy A B C D..counties

7 Shortage Of Power How bad is the Power Shortage? At provincial levels, 23 provinces experienced the shortage and black-out Shortage hit hard on China East and China South where GDP growth rate is more than 10%(reduce local GDP by 2%) Black out was daily experience In summer, many factories had to shut down for several weeks to reduce the load All government buildings were ordered to set the aircondition temperature above 26 (= 79 F)

8 Power Generation Solution Supervisory Information System (SIS) 1. Required for New Power Plant with 2*300MW up 2. All data has to be saved into SIS database 3. Plant Level Performance Calculation 4. Optimization and Operation Support Real-time Data Center (RtDC) for Power Gen Group 1. Required for All Power Plants (can use SIS for New Plant) 2. Gateway to Operations Management and ERP system

9 SIS Architecture Overview Secured Area III Mirror Server MIS/ERP Server MIS Network Clients Internet Web Server Security Level II Physical Isolator SIS Server SIS Network SIS Application SIS Manager SIS Operator Secured Area II Firewall Interface Security Level I Secured Area I DCS Network #1 DCS #1 PLC #1 RTU #2DCS #2PLC #2RTU

10 SIS Applications!! " # $ # %!

11 Real-Time Supervisory Unit Overview Boiler System Power Flow

12 Performance Calculation [ ] 1. ASME Standard PTC 2. Boiler Performance Test (GB Turbine Performance Test (GB Condenser Performance Test [ ] 1. Coal Consumption Rate 2. Total Heat Ratio 3. Assembly Heat Ratio 4. Thermal Efficiency 5. Auxiliary Power Ratio 6. Total 140 Calculation JB/T

13 Performance Calculation (cont d)

14 Thermal Energy Analysis ActualTarget Diff

15 Operations Support Stability Indictor

16 Operations Support (cont d) Emission Indictor

17 Condition Based Maintenance Condition Monitoring

18 T&D Solution Massive Construction of T&D Network to Deliver the Power Requires Applications at Large Scale: EMS WAMS (Wide Area Measurement Systems) AMR/AMI (Automatic Meter Reading/Advanced Metering Infrastructure) Energy Power Market Huge Amount of Real-Time Data from Above Systems Requires Centralization of Real-Time Data : RtDC (Real-time Data Center)

19 Facing the Challenge Separation of Transmission into two Power Grid companies State Grid Southern Grid

20 National Grid Area Distribution National Interconnection Backbone Grid In China Northeast Xinjiang Northern Northwest Tibet Central East Southern 6 Large-Scale Grid 31 Provincial Grid

21 West to East Interconnection 3 Transmission Backbone Grid Tunnel from West China to East China Northern Backbone Tunnel from Northwest to Northern China, and connection with Northeast and Shandong Grid Central Backbone Tunnel from ChuanYu & Central to East China, and connection with Fujian Grid Southern Backbone Tunnel from Southwest to Southern China

22 West to Central/South Interconnection Northern to Southern Tunnel from Northern China to Central China Western Backbone Tunnel from Northwest to ChuanYu Grid Central Backbone Tunnel from Northern to Central China, then to Southern Grid

23 Mission Impossible for WAMS Problem with PMU Data in Relational DB PMU for One Substation Value: 48 Vector, 8 Analog and 20 Status 268B (data Length) Bandwidth: 20 ms per frame of data = 50*268 = 13KB/second Event: 76*50 = 3800 event/second WAMS with 50 PMUs Bandwidth: 13KB * 50 = 650KB/second Event: 3800*50 = event/second Total Data Size Data Stream: 650KB*60*3600= 14G/Day

24 North China WAMS Pilot Project PI RtDC WAMS Apps

25 North China Grid WAMS Area Display

26 Real-Time FFT Analysis

27 System Module (Prony Analysis)

28 2006 July 1 Central China Blackout Northeast Xinjiang Northern Northwest Tibet East Central Southern

29 Blackout Timelines 7/1 20:00 (transmission line over load) No action is taken 7/1 20:47 (500KV line tripped) 4 big power plants were offlined by operators 7/1 20:59 (grid network starting oscillation) 7/1 23:20 Many power plants were automatically tripped offline Tieline was tripped 5 major cities in Henan were out of power More than 30 million people affected Grid network was restored

30 WAMS Data Tieline (500KV North China & Central China): Active Power (2006/7/1 20:48: /7/1 21:03: )

31 WAMS Data First Oscillation (28 seconds ms)

32 WAMS Data Second Oscillation (3m 33 seconds ms)

33 WAMS Data Comparison of Active Power and Reactive Power

34 WAMS Data Tieline Frequency ( Hz, 0.321Hz)

35 WAMS Apps Real-Time FFT (Oscillation at 0.58Hz)

36 WAMS Apps 3D View Real-Time FFT

37 WAMS Apps Prony Analysis

38 WAMS Trend By 2006 Year North China: 37 PMUs East China: 44 PMUs Central China: 35 PMUs South China: N/A By 2007 Year Provincial level WAMS system will start

39 Limit of Relational DB for EMS/AMR Problem with Real-time Data in Relational DB SCADA Data, for large T&D Network 2 s per each tag value/day* 26 bytes 1.2MB/tag day 100,000 Tag EMS/Day GB/Day 100,000 Tag EMS/Year 40,996.8 GB /Year AMR data, 21,000,000 meters, 1 second, 10 variables per meter Average Value 15 m per each tag 96value/day* 26 bytes 2,496 bytes /tag day 100,000 Tag EMS/Day MB /Day 100,000 Tag EMS/Year 91.1 GB /Year Schedule Value 96Value 100,000Tag = 9,600,000 Event/Day = 3.5 Billion Event/Year

40 EMS Trend Information System Time-Series Data Critical Assets Control Center Master Stations Servers Networks Facility Equipment ERP Planning Forecasting Maintenance Timestamp Name Value RtDC Corp Data Relational Transactional Power System EMS/DMS WAMS PowerMarket Metering Fault Record Fault Record Others

41 South China Grid New EMS Project &! '!

42 Next Generation EMS Key Features Single database and modular database Fast load flow solutions based on distributed computing Advanced surface graphics Advanced dispatching and generation control Integrated State Estimator Advanced damping control

43 Summary Real-time Secure Data Center High Availability, Sustainable Architecture Power Generation Wide Area Measurement Systems Next Generation EMS Other Initiatives Energy Power Market Scalable AMR/AMI Smart Metering Gateway Demand Response Based Control Center

44 THANK YOU!! QUESTIONS?