Low Voltage Ride-Through for Wind Turbines
Low voltage ride-through (LVRT) or fault ride-through (FRT) is one
of the challenging requirements for grid connection of large wind power
plants. FERC and international regulators have demanded that wind power
plants keep wind turbines online to support system frequency in the
event of network faults and to stabilize the voltage after the faults
are cleared.
This course discusses the behavior of induction generators during
faults at the collection point of the plant. The problems associated
with faults such as rotor speed excursion, torque oscillations and
transient overcurrent are presented. Techniques that are developed to
handle the LVRT/FRT that maintained the energy balance and support the
reactive power without damaging the turbines are discussed. Several case
studies will be presented
Target Audience
Utility engineers
Wind energy field engineers
Wind energy manufacturing engineers
System operators
Maintenance engineers
Wind power producers
Consultants and researchers in wind energy
Course Topics:
Basic
Power Electronic Converters for Wind Turbines
Types of
Converters
Circuits Architectures
Control Parameters
Energy of
Wind
KE of wind
Air power density
Tip Speed ratio
Coefficient of performance
Variable Pitch and Betz limit
Wind
Turbines and Systems
Main
components
Power flow
Power-speed characteristics
On-shore and off-shore systems
Types of wind turbines
Wind
Generators
Induction
Generators
Active and Reactive power flow
Adaptive VAR compensators
Doubly-Fed systems
Synchronous Generators
Wind
Energy Penetration
Definitions
Wind energy worldwide
Wind energy in USA
Wind
Energy Integration
Grid Code
Time Scales for System Operation
Wind Integration Issues
Low
Voltage Ride Through
Faults
Protection actions
Stability
LVRT code (US and international)
LVRT
Compliance Methods (US and international)
Ramping
Dynamic braking
Dynamic voltage support
Dynamic voltage restorer (DVR)
Storage
Load management