1.

Overview of wind generation technologies

R. Sims

9:00 a.m.

2.

Physical design / capability of 3 specific wind generators representing a range of technologies:

R. Sims

J. Franklin

M. Barrios

(20 minutes per presentation)

a.  Describe the turbine

i.  Physical characteristics

ii.  Rating

iii.  Method of starting

iv.  Method of controlling power output

v.  Method of stopping

vi.  Reactive devices as part of the turbine

1.  Physical description

2.  How used operationally

b.  Describe the wind ranch

i.  Site selection criteria

ii.  Cabling connecting to collector substation

1.  Electrical characteristics

2.  Operational issues

iii.  Substation

1.  Substation / switching diagram

2.  Step up transformer(s)

3.  Reactive devices

iv.  Control system

1.  Location of control rooms / facilities

2.  SCADA

3.  Turbine power control

4.  Reactive control

5.  Switch / breaker control

c.   Transmission interconnection issues

i.  Special Protection Schemes (SPSs)

ii.  Remedial Action Plans (RAPs)

iii.  Describe current Voltage Ride Through capability

1.  What are current low voltage relay settings

2.  What design changes would be required and what would it cost to comply with FERC 661A nine cycle zero volt standard

4.

Lunch

5.

ERCOT voltage control requirements (15 minutes)

ERCOT

6.

Transmission Owner voltage management practices (25 minutes)

Oncor

7.

ERCOT Operational Proposals

a.  Utilizing High Frequency Relaying to protect against sudden increases in wind output

b.  Special Protection System (SPS) Operation

c.  Weather data input requirements for the wind forecast

d.  Ramp Rate discussion

i.  Explore the possibility of wind generation providing governor-like response

ii.  Explore the possibility of a ramp rate instruction

ERCOT

8.

Next steps

a.  Identify training needs

i.  For wind generators and QSEs

ii.  For ERCOT staff

b.  Identify procedural changes to be made

i.  Data collection

ii.  Operating procedures

iii.  Equipment design

$FREE

See http://www.ercot.com/calendar/2008/08/20080822-WIND for more info, or contact Walter Reid, John Dumas, or Mark Garrett.

Presentations will be posted to the calendar page prior to the meeting.

Conference call lines (40) will be available.

Rev 8/13.  Topics subject to slight change.

5:00 p.m.