Pitch Control Drive is designed to be installed in sets of three, within a wind turbine hub in order to control the pitch of the blades. The drive operates in either position, velocity or torque mode. The drive can receive Analog commands or CANopen® commands from the Pitch Control system. The product interfaces two feedback devices (dual-feedback) to enhance control accuracy due to motor’s gearing. During its normal operation the drive monitors and charges the external (to the drive) capacitor’s bank which is used during shut-down scenarios to perform a controlled move of the blade to its neutral position. The proposed Pitch Control Drive is very cost effective.
Key Benefits
• High performance, full featured ruggedized servo drive
• Designed to comply with CE and UL
• Operates from -20° to 55°C, 90% Humidity
• Operates at its rated current at altitudes of up to 1000m and at air pressure conditions within the range of 80 – 110 kPa
• Designed to work in harsh environment
• IP54
Features
• 24V Logic power supply
• Charging and voltage monitoring of external capacitors bank (Super-Cap) to enable safe and proper shut down
• Special Emergency trajectory profile
Feedback
• Dual or single feedback modes Resolver and SSI. SW command switching between modes.
Servo Control
• Phase control or DQ control algorithms
• Precision analog referencing of current & speed control, with auto-zero calibration
• Fully programmable parameters, including control gains, reference gains and offsets, current and speed limits, etc.
• PWM frequency 8 kHz
• Tuning, setup, and performance monitoring by serial communication or CANopen®
• Protections for under voltage lockout, over-voltage automatic shut down, short circuit, thermal limits for both drive and motor.
• Ability to dissipate regenerating energy of the motor by using external regenerative resistors
Reference Command
• 12 bit Analog-to-Digital conversion for ±10Vdc operation
• Serial command
• Support CANopen® communication
Motion Options
• Position mode command
• Serial and analog Velocity command
• Serial and analog Torque command
Configurable Input and Output
• 16 digital inputs and 6 digital outputs, configurable to a variety of functions
• Motor brake relay
• Fault relay output
• 3 PT100 Thermal Sensor Inputs
• 1 Analog Command
• External Capacitor Bank charging relay command
Robust Design
• Software error handling
• Full protection against excessive temperature, under/over voltage, loss of feedback signal, short circuits between the motor power outputs and between each output and power input
• Loss of commutation signals, Recovery from communication errors
Ratings
|
AC Input
|
Continuous Output Current per Phase
(Amps RMS)
|
Peak Output Current per Phase
(Amps RMS)
|
|
3-Phase, 380VAC
|
30
|
90
|
Dimensions
370 (height) x 240 (width) x 300 (depth) mm