ZFeng 900 Series 22Kw-T-G General Vector Variable Frequency Drive

Variable frequency drive (VFD) can be divided into voltage type and current type according to the nature of DC power supply; According to the transformation process, it can be divided into AC-DC-AC and AC-AC frequency converters. Its advantages include smooth soft start, infinite speed regulation, improved working speed, convenient access to communication network control, and realization of production automation control.

As the core equipment of industrial control, frequency converters have deeply penetrated into fields such as energy, manufacturing, and people's livelihood. Its technological advantages are significant, and market demand continues to grow. In the future, it will further evolve towards intelligence and greenness, helping global industrial transformation and sustainable development.

Working principle

Rectification: Convert alternating current into direct current.
Filtering: Smooth DC power and reduce fluctuations.
Inverter: Convert DC power into AC power with adjustable frequency/voltage through IGBT switches.
Control unit: Adjust output according to requirements to achieve precise control.

Application areas

• Industrial sector:
  Pumps: Water plants, chemical pumps, energy-saving speed regulation.
  Fan: Wind regulation for steel mills and power plants.
  Compressor: energy-saving operation of refrigeration and mining equipment.
  Rolling mill/winch: precise control in the metallurgical industry.
• Civil and Commercial
  Air conditioning: energy-saving renovation of central air conditioning refrigeration pump.
  Elevator: Smooth speed regulation to enhance ride comfort.
  Washing machine: Variable frequency motor improves washing efficiency.
• Special Scene
  Music Fountain: Control the dynamics of water flow.
  Offshore oil extraction: stable control of submersible electric pumps.
  Printing and dyeing machinery: Multi unit synchronous speed regulation to improve fabric quality.

Market Environmental Protection

• Energy conservation and reduction of carbon emissions: Frequency converters reduce carbon emissions by optimizing motor operating efficiency and minimizing unnecessary energy consumption. In equipment such as fans and pumps, frequency converters can adjust the speed according to actual needs, avoiding energy waste caused by traditional adjustment methods such as baffle adjustment.
• Pollution reduction: In certain specific applications, such as industrial smoke exhaust, exhaust, and dust removal control, frequency converters can help equipment operate more accurately and reduce pollutant emissions.
• Supporting clean energy: Variable frequency drives are used in the field of new energy, such as wind power generation and solar power generation, to control the operation of power generation equipment and improve the efficiency of clean energy utilization.
• Promote resource recycling: In environmental protection loads such as sewage treatment, frequency converters are used to control the operation of treatment equipment, improve treatment efficiency, and promote the recycling of water resources.