ABB November 7, Slide 1

Transcription

1 Eason Liu, PM, ABB Xiamen Electrical Controlgear Equipment Co., Ltd., Nov ABB outdoor products smart programs create a new time for distribution network reconstruction Slide 1

2 Smart grid Smart grid phased construction goal 3 stages: 2009~2010 Pilot stage, 2011~2015 Construction stage, 2016~2020 Lifting stage 5 features: reliability, efficiency, environmental protection, transparency, interaction Electricity generation Renewable Source Wind Power Plant Nuclear Power Plant Natural Gas Transmission CO2 Transportation and Safekeeping Hydrogen Energy H2 production Production electrolysis Electrolysis Energy CCS Coal-fired and Gas-fired Power Plant Hydrogen Direct Electricity H2 Generation production Gen Gen IV IV Biofuel Power Generation PTD CHP/ DC Micro Network,the Heating Network Smart Transmission Substation Distributed generation Fault Location Embedded Renewable Energy Smart Distribution Substation Embedded Energy Storing Device Photovoltaic Solar Smart Transmission Substation Smart Building Heat Pump Sensor Smart Switch AUTO Fault Isolation Smart Sensor Smart Home Fault Location Smart Distribution Substation Highly Adiabatic Residential Structure Indoor Data Tidal Power Generation Wind Power Photoelectric Roof Demand Side Management Mini-Power Generation Slide 2

3 Distribution network Huge and complicated network Driving factor To take the method of AUTO- Fault location, Fault Isolation, Non-Fault Area restoration and Fast Repair to improve Power Distribution reliability. To improve the test accuracy rate of single-phase earth fault of small current grounding syst em Distribution Network Management System Transformer Substation Distribution Network Mini- Network Wind Power Solar Energy Stored Energy To make distribution network integrated autom ation and usage renewable energy, stored energy, and new load Customer Electric Vehicle To improve the observability and controllability of distribution network Slide 3

4 Distribution network transformation Goals and current situation <2015~2020 Action plan for distribution network construction and transformation> GOAL To improve power distribution reliability: central urban area:99.97%; towns:98.79%;village: 97% To meet new energy distributed generation connection,and promote deep integration between smart grid construction and Internet To use Energy saving and environmental protection equipment to Promote resource saving and environment friendly SCHEME Central urban area : tri-remote terminal to realize Centralized feeder automation and Intelligent distribution feeder automation Town:tri. or di-remote centralized feeder automation; di-remote movement demarcation switch; noncommunication local coincidence distributed Village: use fault indicator to locate fault. ISSUE Low operational Reliability, low device online ratio, low feeder automation ratio, underperformed power distribution reliability improvement, irrespective level of power distribution terminal Unable to accurately judge the fault of small-current grounding system Unable to meet the demand of new energy and distributed power connection self-adaptively Slide 4

5 Characteristic of ABB smart distribution network Adopted by the Smart Distribution Solution, suitable for different network topology, power distribution reliability reaches % Adopted by the ABB multi-frequency admittance earthed protection program, realize reliable detection of singlephase earth fault, accuracy rate of fault detection reaches 99% ABB Smart Program applies to: Central city: Town: Village: ABB Smart Distribution Network Program Adopted by the Smart Distribution Solution,fault isolation and network reconfiguration power restoration time could be millisecond,which deeply reduces the power-cut time Adopted by the Smart Distribution Solution, meet the demand of new energy and distributed grid connection, help to establish global energy Internet. Non-pollution emission in production chain, majority of material is degradable, which promotes resource saving and environment friendly Slide 5

6 ABB smart distribution network Program system Local solution Distributed solution Station control solution Customer value Improve power distribution reliability Dispense with communication and background system creation Be apt to extend and maintain Highly improve power distribution reliability Support to new energy and distributed power connection Dispense with communication and background system creation Be apt to extend and maintain Improve power distribution reliability Real-time monitoring distribution network Program Local feeder automation v v v Current-counting program Voltage-timing program Voltage-timing- current Hybrid Scheme Smart distributed feeder automation program Distributed power connection program Centralized feeder automation program(dms) Triple dual power automatic switchover program v Customer dividing switch Sequentially Improve Customer Value Slide 6

7 Distribution automation scheme Current based automatic sectionalizer Transformer Circuit Breaker Transformer Substation Customer value In radial distribution system, detect current signal as a logical judgement to realize: Reliable power supply. Fault location Isolation and non-fault area power restoration Economy and Efficiency. Dispense with communication system, realize network reconfiguration and restoration in 1min Easy extendability and maintenance. Support staged construction for easy maintenance Slide 7

8 Distribution automation scheme Voltage and current based automatic sectionalizer Transformer Transformer substation CB: Feeder circuit breaker with protection FB: Master sectionalizer with protection FSW1~FSW2: Master load sectionalizer ZB1: Branch sectionalizer with protection ZSW1: Branch load sectionalizer YSW1~YSW3: User branch load sectionalizer Customer value Reliable power supply. Extermely narrow failure outage, realize fault location isolation and non-fault area transferring power supply Economical and Efficiency. Dispense with communication system, realize network reconfiguration and restoration in 1min Easy extendability and maintenance. Support staged construction for easy maintenance Slide 8

9 Distribution automation scheme User s sectionalizer Sectionalizer Sectionalizer Customer value Reliable Power Supply Adopted by the ABB multi-frequency admittance earthed protection, realize fast isolation for customer fault, and accuracy rate of single-phase earth fault detection reaches 99% Economical and Efficiency. Isolate single-phase earth fault in millisecond, to make sure others not affected. Slide 9

10 Distribution automation scheme Small current earth-fault detection 80% errors in medium voltage is one-phase small current earth-fault Traditional method Power frequency detection Harmonic detection Fault type Permanent earth-fault Arcing or Intermittent earth-fault High resistance arcing or Intermittent earth-fault Non-significant power frequency current singnal feature,hard to judge direction Uncertain signal source,system dependency Transient detection Transient signal attenuation, unable to detect To One-phase Small Current Earth-fault, Traditional method doesn t work Slide 10

11 Distribution automation scheme Multi-frequency admittance earth-fault detection Fault detection rate:99% Permanent earth-fault _ +90 deg Im(Yo) REVERSE FORWARD Arcing or Intermittent earth-fault Y osum_cps _ 0 deg Re(Yo) REVERSE FORWARD High resistance arcing or Intermittent earth-fault Tilt angle -90 deg Earth-fault types Advanced earth-fault detection algorithm Direction ensurance Slide 11

12 Multi-frequency admittance earth-fault detection Comprehensive fault type verification Intermittent arc earthing verification High resistance intermittent arc earthing vertification Slide 12

13 Multi-frequency admittance earth-fault detection Comprehensive fault type verification Transpect earth fault verification Permanent earth fault verification Slide 13

14 Multi-frequency admittance earth-fault detection Small current neutral grounding line selection Traditional small current system ABB integration system Line selection device UL1 UL2 U0 UL3 protect ion protecti on protecti on UL1 UL2 UL3 U 0 I 0 I 0 I 0 I 0 I 0 I 0 Integrated protection Main function: Customer value: To provide reliable small current line selection fuction Basic protection control and mesurement fuction Cost saving 99% reliability detection Total IEC communication REF615 Slide 14

15 Multi-frequency admittance earth-fault detection Distribution automation application Smart FTU/DTU Technical advantage: Reliable detection for both interphase fault and one-phase small current earth-fault, rapid fault isolation, rapid power GOOSE Direction detection Direction detection EFDIR: Smart distributed earth-fault detection isolation and power recover Earth-fault detection forward forward reverse I 0 I 0 Customer value: Direction detection Earth-fault isolation To highly improve distribution automation usage rate Direction detection Power recover To improve power supply reliability Direction detection REF615 Slide 15

16 Multi-frequency admittance earth-fault detection Smart distribution feeder automation Characteristic analysis Distributed automation,high performance Non master station(optional SCADA),self-healing in milisecond High reliability FOC GOOSE point to point communication, 3ms delay High reliability HSR redundancy communication Non-interchanger Fits any network structure,for the future application Self-adaption new energy and distributed power connection Easy debug,project standardization, easy maintenance Digitization test,standard project delivery Selfhealing in miliseco nd FTU/DTU High reliability process SCADA Interchanger redundan cy communi cation network HSR based high reliability GOOSE network easy maintena nce and expandat ion Slide 16

17 Distribution automation scheme Smart distribution feeder automation External fault, latch-up protection Internal fault,triping protection Transformer substation B Protection actuation time 100ms Shift time 100ms GOOSE GOOSE GOOSE GOOSE GOOSE GOOSE 100ms 100ms 100ms 100ms 100ms 100ms 100ms Switch on for fault isolation Switch over for non-fault load shift Customer value Smart devices coordinate with each other to realize reliable and rapid fault isolation and nonfault recovery Reliable power supply, effective and economical. Slide 17

18 Distribution automation scheme Centralized control Customer value Master station based distribution automation centralized control To entirely realize distribution SCADA feeder automation regulatory integration distribution advanced application distribution self-healing analysis distribution running simulation economic operation etc. To provide decision support for distribution reliability service IEC 61968/61970 based,standardized information interaction 3 rd floor : Master station for Remote control 2 nd floor : Transformer substation 1 st floor: Monitoring and control FL1 FTU/DTU COM600 substation Ethernet optical fiber ring network Master station Ethernet TCP/IP Ethernet switch Ethernet optical fiber ring network Industrial Ethernet switch FL2 Slide 18

19 Distribution automation scheme Summary PVB-S NXB REF615 PVB-S NXB REF615 PVB-S NXB CT PT PVB-S NXB CT PT CT PT CT PT REF615 Ethernet REF615 Substation Master Current based automatic sectionalizer/mixture: Customer value For power supply reliability For cost saving For cost saving For system upgrade System configuration User s sectionalizer: Customer value For power supply reliability To improve accuracy of one-phase earth-fault detection For system upgrade System configuration Smart distribution feeder automation: Customer value To highly improve power supply reliability To support new energy and Power grid data sharing distribution power connection To support standardized For cost saving information interation For system upgrade System configuration Centralized control: Customer value Real time monitoring distribution network state System configuration Slide 19

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