W650 wind generator protection system
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W650 Wind Generator Protection System. System Protection & Improved Operational Uptime. Why W650?. Protection to Provide Backup to Wind Turbine Controls & Excitation Better Wind Farm Economics by Improving System Uptime & Time to Restoration

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W650 Wind Generator Protection System

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W650 wind generator protection system

W650 Wind Generator Protection System

System Protection & Improved Operational Uptime


Why w650

Why W650?

  • Protection to Provide Backup to Wind Turbine Controls & Excitation

  • Better Wind Farm Economics by Improving System Uptime & Time to Restoration

    • Address Lack of Wind Turbine & System Event Diagnostics

Diagnostic in W650 can tell what happened, why, and when … to the mSec


What is the w650

What is the W650?

  • Part of an Overall Protection System … but can be used as a stand alone protective device

  • Overlay to Existing Wind Turbine & Farm Control by Providing Unit Protection, Wind Farm System Protection, Unit, & System Diagnostics

Substation Protection Controller

W650 1 in Wind Turbine

Windfarm Substation Protection Controller sends Trip and Block Commands to and From W650’s

W650’s can also send trip and block commands to each other

W650 2 in Wind Turbine

W650 n in Wind Turbine


W650 wind generator protection system

Some Definitions …


Definition of larger wind farm system units 1mw on a coordinated farm

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Definition of Larger Wind Farm System (Units > 1MW on a Coordinated Farm)

Utility (e.g. 33kV)

Tie Breaker

Line

Transformer Breaker

Step Up Transformer

Bus Breaker

Bus

Windfarm Substation

Collector Feeder Breakers

Collector Bus


Definitions with wind turbine

WTG

Definitions with Wind Turbine

Wind Tower

Wind Tower Breaker

Collector System Voltage (e.g. - 3kV or 13.8 … depends on MW size of Generator & Presence Transformer)

Transformer

Generator Output Voltage (e.g. - 575V or 3kV … depends on MW size of Generator)

Excitation

Generator


Sources of faults

Inside the Wind Turbine

Tower Cable

Transformer Faults

Wiring Inside the Electrical Distribution Panel

Wind Turbine Generator

Excitation System Fault

On the Wind Farm

Collector Bus Cable Fault

Step Up Transformer

Substation Bus Structure Fault

Feeder Fault Impact on Stability

External to the Wind Farm

Voltage Stability

Reverse Power Flow

Sources of Faults


How faults manifest themselves

How Faults Manifest Themselves

  • Inside the Wind Turbine

    • IOC, TOC, Ground Fault

  • On the Wind Farm

    • Voltage/Current Unbalance

  • External to the Wind Farm

  • IOC, TOC, Voltage Stability


Subjects for discussion gaps today

Subjects for Discussion … Gaps Today

  • No backup Protection in Wind Turbines/Towers … Need for a System Wide Protective Application apart from Control

  • Lack of Coordinated Event Record & Oscillography make it Difficult to Determine What Happened & When, resulting in Prolonged Time to Return to Service

  • Lack of Overall Coordinated Wind Farm System Protection can result in Lack of Operational Selectivity and Reduced System Uptime


W650 wind generator protection system

What does the W650 do ?


W650 wind turbine protection capabilities

W650 Wind Turbine Protection Capabilities

Configurable Display & LED’s

  • W650 for Protection, Metering, and Coordination to Upstream Substation Protection

  • Communications to GE Wind Turbine Controller via CANopen protocol

  • Available Protection – Under/overvoltage, Under/overfrequency, voltage unbalance, directional over-current, zero sequence overvoltage, aux voltage, and breaker failure

Keypad & Shuttle

Front Port Upload & Download


W650 hardware construction

W650 Hardware Construction

The W650 features advantage such as:

  • Modular hardware architecture:

    • Main CPU board with two plug and play comm boards

    • Universal magnetic (CTs & VTs) module

    • Programmable I/O module

    • Single or redundant power supply

    • Front board: HMI ( Graphical or alphanumerical display, LEDs, RS232)

  • Modern and open communication protocols for easy integration


W650 wind turbine protection con t

W650 Wind Turbine Protection (con’t)

  • Metering – current (+/- 0.5%), voltage (+/- 1%), power(+/-1%), energy (1%), power factor (0.02)

  • Event capture – up to 479 events time stamped to 1mSec

  • Oscillography – Up to 20 oscillography files programmable from 4-64 samples/cycle, 1MB of data, analog and digital signals. Retrievable via front panel or system communications.

  • Monitoring – 4x20 character display … optional graphic display …


W650 wind turbine protection con t1

W650 Wind Turbine Protection (con’t)

  • Control – programmable unit control

  • Communications – IEC61850 communications to peer W650’s and Substation Protection Relays

Substation Protection Controller

W650 1 in Wind Turbine

IEC61850 Communications Protocol Uses Ethernet to Send Block and Trip Commands from WTG Relays to Substation Controller as well as via Peer to Peer

W650 2 in Wind Turbine

W650 n in Wind Turbine


W650 wiring

W650 Wiring


W650 wind generator protection system

How does the W650 Integrate

into the Entire Wind Farm?


Examples of wind farm protection requirements

Examples of Wind Farm Protection Requirements

  • Open Collector Breakers Upon Fault in Cable to Host Utility

    • All Wind Turbines, Selective, or Entire Collector

  • Open Collector Breakers Upon Transformer Fault

    • All Wind Turbines, Selective, or Entire Collector

  • Collector Bus Cable fault Requires Selective Trip Wind Turbine Breakers

  • Issues in a Specific Wind Turbine to Prompt Block Command to Other Wind Turbines


  • Electrical protection topology

    Electrical Protection Topology

    Interconnect Protection

    GSU Protection

    Bus Protection

    Feeder Protection

    Feeder Protection

    Feeder Protection

    Feeder Protection

    Turb. Prot.

    Turb. Prot.

    Turb. Prot.

    Turb. Prot.

    Turb. Prot.

    Turb. Prot.

    Turb. Prot.

    Turb. Prot.

    Turb. Prot.

    Turb. Prot.

    Turb. Prot.

    Turb. Prot.


    Network topology

    Network Topology

    Interconnect Protection

    GSU Protection

    Bus Protection

    Feeder Protection

    Feeder Protection

    Feeder Protection

    Feeder Protection

    Ethernet Switch

    Turb. Prot.

    Feeder 2

    Feeder 3

    Feeder 4

    Enet

    Switch

    Protection System Overlays Parallel Control System

    Turb. Prot.

    Enet

    Switch

    • Fault Tolerant Ring

    • Support WTG outside a break in the ring

    • Requires 2 Fiber Strands

    • Worst case 1 micro Sec Delay by Switch

    • Unmanaged Switch in WTG

    • Managed Switch w/VLAN in Substation

    Turb. Prot.

    Enet

    Switch


    Alternate network topology if 3 rd party wind farm protection is used

    Alternate Network Topology (if 3rd Party Wind Farm Protection is Used)

    Other

    Supplier’s Protection

    Hardwired IO

    Sub controller

    Ethernet Switch

    Turb. Prot.

    Feeder 2

    Feeder 3

    Feeder 4

    Enet

    Switch

    Turb. Prot.

    Enet

    Switch

    Turb. Prot.

    Enet

    Switch


    Transfer trip capabilities of w650

    Transfer Trip Capabilities of W650

    • send a “block” or “transfer trip” from the protection offering in the Wind Farm substation protection (GE or other) to entire collector bus or individual wind turbine

    • “block” or “transfer trip” command from individual wind turbine to substation protection


    Transfer trip example

    Transfer Trip Example

    • Transformer Protection detects Differential Fault and Initiates Transfer Trip Command

      • Transformer Breaker Opens

  • Collector Bus W650’s Receive Transfer Trip Command and Issue Command to Trip Breaker

  • Collector Bus and WTG’s Isolated


  • Economics

    Yellow Items Represent Customer Specific Variables

    Payback Calculated on Improved System Operations

    Equipment/Personnel Damage Avoidance Not Included

    Economics


    W650 wind generator protection system

    How do I get more information?


    Support resources available from ge multilin

    Support Resources Available from GE Multilin

    • Available On-line at www.gemultilin.com

    • Product Cut Sheet

    • Product Presentation

    • Whitepaper on Transfer Trip Technologies and Benefits

    • Guideform Specification to Assist Consultants and EPC’s

    • Wiring/Installation Information

    • Pricing and Ordering Information Available On-Line


    Ordering information

    Ordering Information

    • Greenfield Installations

    • Specify to Wind Turbine OEM & Wind Farm EPC

    • Request to Include with Wind Farm Substation and Wind Turbine’s

    • Field Integration Services Available

    • Retrofit Bill of Material

    • 1 W650 per Wind Turbine

    • 1 Ethernet Switch per Wind Turbine (GE Multilin model ML600)

    • 1 Ethernet Switch in Wind Farm Substation (GE Multilin model ML2400)

    • Substation Protection Controller (GE Multilin C30)


    Who to contact for questions

    Who to Contact for Questions

    • GE Multilin – John Garrity, 518.877.8860, [email protected]

    • GE PSEC – tbd

    • GE Wind - tbd


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