Question

What are the functions of high-voltage inverters and the application fields of high-voltage inverters?

Answer 1

High-voltage inverter is a kind of power conditioning equipment used to control high-power motors, which can convert the fixed frequency and fixed voltage of AC power output into adjustable frequency and adjustable voltage electric energy to achieve precise control and speed regulation of the motor.

High-voltage inverters are widely used in the following fields:

1. Manufacturing: High-voltage inverters can achieve precise processing, painting, packaging and other operations on various production lines by accurately controlling the rotation speed and torque of the motor.

2. Transportation: High-voltage inverters can be used to control the operation of electric motors such as rail transit, electric vehicles, ships, etc., to reduce energy consumption and improve operating efficiency.

3. Fire safety: high-voltage inverters can be used to control the motor operation of important facilities such as fire pump stations to achieve system stability and reliability improvement.

4. Power system: high-voltage inverters can be used to control the motor operation of key facilities such as power plants and transmission lines to achieve power load balancing and dynamic response enhancement.

In short, high-voltage inverters are widely used in various large-scale motor drive systems, which can improve system control accuracy, energy utilization and work efficiency, while reducing equipment maintenance costs and operational risks.

Answer 2

The application fields of high-voltage inverters are:

1. Industrial production: high-voltage inverters are widely used in industrial production, such as compressors, fans, pumps, etc.

2. Petroleum: High-pressure inverters are used to control pumps and compressors to improve production efficiency and extend equipment life.

3. Railway and road transportation: high-voltage inverters are more and more widely used in railway and highway transportation systems, such as high-speed rail.

4. Power: fans, pumps and other devices mainly used for coal-fired boilers with fan and pump loads.

5. Metallurgy and mining: In the field of metallurgy and mining, high-voltage inverters are used to control equipment in the process of metal melting, extraction and processing.

6. Printing and packaging industry: high-voltage inverters are also very common in the printing and packaging industry, which can control various automation equipment to improve production efficiency and quality.

7. Oil and gas drilling and production industry: frequency converters are used in the oil extraction industry, mainly used for motor types such as oil conveyors, water injection pumps, submersible pumps, oil transfer pumps and gas compressors.

8. Metallurgical industry: the application of high-voltage frequency converter in the metallurgical industry mainly includes rolling mills, coils, fans, slurry pumps, etc.

9. Power industry: The power industry is also an important application category of inverter products, mainly used in the production of coal, powder, water, etc.

10. Water supply: The water supply and drainage system, sewage treatment system, etc. in the joint project, the energy-saving effect of using high-voltage inverter is very good.

11. Petrochemical industry: frequency converter is mainly used in various pumps, compressors and joint projects in petroleum processing to achieve the purpose of energy saving and control engineering.

12. Building materials industry: Building materials industry is an important material industry in China, and its products include building materials and products, non-metallic minerals and products, and inorganic non-metallic new materials. Inverter products are mainly used in blowers, crushers, belt conveyors, exhaust fans, rotary furnaces and other equipment in the building materials industry.

13. Coal industry: The use of frequency conversion speed regulation function in coal mine trains can play a better energy-saving role.

High-voltage inverter refers to the frequency converter used in high-voltage (medium-voltage) motors, with a power range of tens of kilowatts to several thousand kilowatts. The high-voltage inverter can be used to control the variable speed operation of the wind turbine, so as to change the power according to the wind speed and save energy, and can also be used to control the flow, pressure or speed of water pumps, fans and other equipment and other parameters to improve the operating efficiency of the equipment.