1 Application Solution Success Stories:
Wind power station powerful digital servo driver
2 Machine description:
Rotary wind turbines convert wind energy into mechanical energy and convert it into electrical energy. Three blades are used in commercial wind turbine farms and servo motors drive the direction of the blades.
The blades have a high rotational speed - up to 6 times the wind speed, and the power generation efficiency is high, and the low torque ripple makes the overall higher reliability. Blade lengths from 20 meters to 40 meters or even longer, can all be driven by a 3000 watt smart servo motor driver from Riemerzer (Beijing) Co., Ltd. High-power and intelligent servo drive - used as a backup drive processing system to make the turbine even It can also operate in the event of an emergency.
Ordinary blades rotate at 10 to 22 revolutions per minute, but we can use a more advanced design scheme to keep the blade rotation speed at a constant value. In this application solution, the servo drive controls the motor to constantly change the blade The angle of flow of the wind to maintain a constant rotational speed. All turbines are equipped with a shutdown function to prevent damage to the turbine at high wind speeds.
challenge:
In designing wind turbines for application solutions, based on the products of Riemerzer (Beijing) Co., Ltd., we all face the following challenges:
• The wood blade of a wind turbine requires high-precision control when rotating at high speeds.
• Smart drives drive brushless servo motors to control blade rotation.
• Extremely variable conditions require a highly reliable solution.
• Solutions need to be based on existing products provided, meet safety requirements, and have redundancy/backup capabilities.
• Requires the design of a solution that is compact and uses minimal space.
• Ability to provide advanced programming capabilities within the drive to enable it to respond to unexpected situations.
• Need to provide a high-power, low-cost, high-efficiency smart motion control solution.
• Regulations must support absolute encoders.
• Direct connection without a DC three-phase power supply.
3 Solutions from Emerson (Beijing) Co., Ltd. The space limitations of servo drives installed on wind turbines require highly integrated high-power motor electronic hard disks to provide the necessary high torque and precise control of blade speed. Tiger and Eagle drives are designed for high power density and high performance where safety is an important requirement.
The 3000-watt intelligent servo motor driver was selected as the main driver due to its small size, high power and ability to support up to 600-volt DC bus. This is an all-digital servo driver that can drive up to 50 continuous currents of high torque for high-speed driving of wind power blades.
The specific parameters of the product are as follows:
3000 Watt Smart Servo Motor Driver
Rated power: 3000W
Rated voltage: DC24~325V or AC220V
Rated current: 10A
Control interface: CAN, RS-232, pulse direction, analog
Applicable motor: AC servo motor, DC brushless servo motor, linear motor
Encoder type: Incremental encoder, Resolver, Sin-Cos encoder, SSI absolute encoder
Typical applications: CNC machine tools, industrial robots, solar power stations, wind power stations, coating machines, medical equipment, three-coordinate measuring instruments, winding machines, color inkjet printers, and engraving.
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Dongguan Andu Electronic Co., Ltd. , https://www.autoido.com