Screw Compressor Torque Profiling for Stable Refrigeration Drive

The patent applies dynamics by transitioning from conventional static torque delivery to dynamic torque control. The controller continuously adjusts torque delivery based on real-time operating conditions, allowing the system to adapt to varying loads and minimize non-productive forces. This dynamic approach optimizes the balance between radial and axial forces throughout the compression cycle, reducing pulsating torque while maintaining operational stability across different operating points.

The patent implements parameter changes by modifying torque delivery parameters based on operating conditions. The controller varies torque magnitude and timing to optimize compressor performance at different operating points. By changing torque parameters dynamically, the system minimizes harmful radial and axial forces while maintaining efficient operation, directly addressing the contradiction between stability and energy efficiency.

The patent applies feedback by implementing a closed-loop control system that continuously monitors compressor operating conditions and adjusts torque delivery accordingly. The controller receives feedback on actual performance and compares it with target values, automatically modifying torque parameters to maintain optimal operation. This feedback mechanism enables sophisticated torque profiling without requiring overly complex control architecture, as the system self-regulates based on real-time conditions.

The patent implements self-service through an automated control system that independently manages torque optimization without external intervention. The controller automatically determines optimal torque profiles based on operating conditions, eliminating the need for manual adjustment or complex external control systems. This self-service capability achieves high operational stability while keeping the control system relatively simple and autonomous.

The patent applies mechanics substitution by replacing conventional mechanical torque delivery with electronically controlled torque management. Instead of relying on fixed mechanical coupling, the system uses an electric motor with electronic control to deliver torque. This substitution enables dynamic adjustment of torque parameters through software control, significantly reducing pulsating torque and improving energy efficiency while maintaining a relatively simple physical architecture.

The patent implements parameter changes by using electronic control to dynamically modify torque delivery parameters. The controller adjusts current magnitude, frequency, and phase to optimize torque output in real-time. This electronic parameter control achieves superior energy efficiency compared to fixed mechanical systems, with the added benefit that the automation is implemented through software rather than complex mechanical mechanisms, keeping the physical system relatively simple.