The Development Direction of the Variable Frequency Inverters

1, High performance

At present, basically all of the inverter are provided with vector control mode, and the emergence of a large number of different levels of control structure and algorithm, to adapt to different market orientation and demand. Noteworthy is the speed sensorless vector control ( SVC ) developed quite rapidly in recent years, because the SVC can provide low cost,high performance solutions, has become the general frequency converter in fact standard and development direction.

2. Easy Control

Considering the installation and use requirements, many factories redesign the structure and also in the software to start setting tool, by directing the customer to simplify debugging process.

3. Intelligent

One is through providing customized programming ability to improve the inverter intelligent degree, to meet different application from customers, this is actually put part of the PLC functions to the inverters.

The two is through communication with an external intelligent device ( such as PLC ) interface to improve the level of intelligent frequency converter.  multiple protocols.

4. High power density

As a result of new power device and thermal design a and technological progress, the current inverter is more compact and small size, power density is higher and higher, but in the temperature rise on key technical indicators have not decreased.

5.  The power mechanism module

Modular power structure design for different series and power products provides consistency, good reliability, plant selection, installation and commissioning,

maintenance convenience, reduce operation and maintenance costs.

6, Reduce EMI / RFI harmonic effect

Considering the EMI / RFI harmonic effects, most inverters built in AC reactor and the choke to reduce the EMI / RFI harmonic effects.