The Importance of Frequency Converters in Production Automation
In modern production automation systems, frequency converters play a key role. Their use significantly enhances the efficiency of various mechanisms.
Frequency Converters in Heat Supply and Water Supply Systems
In the field of heat supply, water supply, air conditioning, and ventilation, as well as in compressor installations, frequency converters replace uncontrolled drives with asynchronous motors. This simplifies the construction of mechanical systems.
The activation of the motor after integrating the frequency converter is smoother, which reduces the load on the motor and mechanisms as a whole, contributing to an increase in their operational period. The main advantages of using frequency converters include their significant energy savings of up to 75%. This is achieved by reducing the necessary power of the device and eliminating starting current losses.
Disadvantages and Features of Thyristor Frequency Converters
Today, thyristor frequency converters are used in regulated drives with direct current motor systems. They are capable of maintaining the required speeds under variable loads. However, one of the disadvantages of such motors is the presence of collectors, which are undesirable in explosive and dusty environments.
Regulated Drives with Asynchronous Motors
To reduce the quality requirements of the operating environment and increase reliability, regulated drives with asynchronous motors should be used.
Areas of Implementation of Regulated Electric Drive Technology
- Heat and Water Supply Systems: Frequency converters in pumps provide precise control of water supply in required volumes at specified times, maintaining necessary pressure levels in pipes and preventing hydraulic shocks. This reduces water losses, improves the integrity of pipelines, and saves thermal and electrical energy.
- Precise Positioning of Mechanisms: For such purposes, converters with vector control are used, which provide feedback. These converters are capable of operating at zero speeds with full torque.
- Manufacturing of Fiberglass, Paper, and Polymer Products: Frequency converters enable smooth starting and stopping of mechanisms operating in these technological processes, as well as continuous speed changes.