Efficient Torque Production to Improve Motor Efficiency
There are multiple control layers that determine the efficiency of the motors and the overall production process. The first layer adjusts the power inverter switching sequence to control the motor voltage and current, as well as maximize torque production efficiency. Motor efficiency is a function of the torque produced per amp supplied and motor construction and particularly the rotor field structure. Drive manufacturers now supply standard drive boxes that can be configured for a variety of motor models and types and include algorithms to optimize motor efficiency and monitor the drive health. In addition, a growing trend is to connect the drives to the factory network to further improve efficiency by coordinating the operation of multiple drives.
Precision Isolation and Communication for Efficient Motion Control
The position and speed controller layer provides execution comments to operate automated machine efficiently. The communication and systems layer is growing in importance as multiple motors are now synchronized over high speed data networks, also connected to the factory network. The combination of precision in motion and communication timing enables shorter machine production cycles and reduces the amount of energy consumed to manufacture each part.
Modeling Tools Enable Rapid Customization to Optimize Energy Efficiency
Automated machines are complex interconnected systems requiring the support of multi-disciplinary engineering teams often working in different companies. Modeling tools support complete system models, including state control, motion algorithm, motor and machine load. While the complete design process cannot be fully automated, the number of prototype builds can be significantly reduced. Drive companies can thus rapidly deploy new control functions for specific applications to optimize energy efficiency and automation productivity.
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