Application of FGI FD800 Low-Voltage Frequency Converter in the High-Speed Motor Industry

High-speed motors generally refer to those with a rotational speed exceeding 10,000 r/min. They feature high efficiency and energy conservation, compact size, cleanliness and environmental friendliness, low noise, easy maintenance, and long service life. With the improvement of industrial automation levels and the popularization of new energy vehicles, their application scope is constantly expanding, and market demand is steadily increasing.

High-speed motors are supported by air flotation bearings or magnetic levitation bearings, featuring no friction, no intermediate mechanical structure, significantly reduced impellers, and high efficiency. However, to control their rotational speed and operating status, high-speed frequency converters need to be used. In response to the current situation where the development of the domestic high-speed motor industry is constrained by high-speed frequency converters, Siasun, through years of technological research and development and continuous accumulation, has provided advanced frequency converter drive solutions for the high-speed magnetic levitation/air levitation industry, contributing to the vigorous development of the domestic high-speed motor industry.

1.Application scenarios

Power: 110kW, 10kHz carrier frequency

Maximum output frequency: 500Hz

Maximum speed: 30000rpm

Equipment type: Magnetic levitation high-speed blower

This magnetic levitation blower is directly connected by a high-speed permanent magnet synchronous motor and a high-efficiency three-dimensional flow impeller, without contact, friction or lubrication, completely eliminating transmission losses. In this application, the FGI frequency converter adopts sensorless vector control, which can precisely control the motor speed in an open loop, bringing great convenience to the speed regulation of the magnetic levitation blower. The carrier frequency of 10KHz significantly reduces motor noise, which is a great benefit for the high-speed blower industry that pursues low noise.

2. Technical advantages of FD800 frequency converter

(1) High dynamic response performance

The FD800 frequency converter adopts advanced vector control algorithms and high-speed digital processing technology, which can achieve rapid and precise regulation of motor speed. It has a short dynamic response time and is suitable for application scenarios where high-speed motors frequently start and stop and speed regulation are required.

(2) Wide frequency output range

It supports a wide range of output from low frequency to high frequency (such as 0Hz to thousands of Hz), which can meet the operation requirements of high-speed motors under different working conditions, especially suitable for occasions that need ultra-high-speed operation (such as above 10,000 RPM).

(3) High power density and compact design

The power modular design enables the FD800 to be smaller in size and lighter in weight at the same power level, making it easier to install and integrate. It is particularly suitable for high-speed motor application scenarios with limited space.

(4) High efficiency and energy-saving features

The built-in energy feedback unit and optimized control algorithm can significantly reduce energy consumption and improve the overall efficiency of the system, meeting the demand for energy conservation and emission reduction in the high-speed motor industry.

3. Sum up

With its technical advantages, the FGI FD800 frequency converter can significantly enhance equipment performance, reduce energy consumption and improve reliability in the high-speed motor industry. It is widely used in fields such as machine tools, robots, textile machinery and new energy. Its features such as high dynamic response, wide frequency output, and high efficiency and energy saving make it an ideal choice for high-speed motor drives, helping the industry achieve efficient, green and intelligent development.