ODM Fan VFD Control Variable Frequency Drive For 3 Phase Motor

ACI Energy Saving Blower Dedicated Variable Frequency Converter

Energy saving fan specific frequency converter is a frequency conversion speed control device designed for the characteristics of fan equipment. It achieves air volume control by adjusting the motor speed, and has the functions of high efficiency, energy saving, precise speed control, and system protection. It is widely used in industrial ventilation, air conditioning systems, environmental engineering and other fields.

Technical Principles

• Variable frequency speed regulation mechanism
  By using power electronic devices such as IGBTs, the power supply is converted into AC power with adjustable frequency to drive the fan motor. The fan speed is proportional to the power supply frequency (n ∝ f), and reducing the frequency can lower the speed, thereby reducing the air output.
  Energy saving logic: The power of the fan is proportional to the third power of the speed (P ∝ n ³), and energy consumption significantly decreases when the speed decreases. For example, when the speed drops to 80%, the power only needs 51.2% (0.8 ³ × 100%).
• Closed loop control technology
  Built in PID controller, combined with real-time feedback from pressure or flow sensors, dynamically adjusts motor frequency to ensure constant air volume. Compared to traditional air door regulation, it can avoid throttling losses and achieve an energy-saving rate of 20% -60%.

Core Advantages

• Efficient and energy-saving
  Wind turbine loads mostly have square torque characteristics, and energy consumption decreases significantly when the speed decreases.
  The soft start function reduces the starting current of the motor, reduces grid impact and mechanical wear.
• Precise control
  Wide range of stepless speed regulation (0-100% rated speed), fast response speed (millisecond level), suitable for complex working conditions.
  High precision PID control with air volume fluctuation range of ≤± 2%, meeting process requirements such as constant pressure and constant flow rate.
• System protection
  Built in overload, overvoltage, undervoltage, and phase loss protection functions extend the lifespan of the equipment.
  Fault self diagnosis and alarm, reducing maintenance costs.

Application

• Industrial ventilation and dust removal
  Ventilation and air exchange in workshops, mines, and other places to reduce energy consumption while ensuring air quality.
  Industrial dust removal system improves dust removal efficiency through constant air flow control.
• Air conditioning and HVAC system
  Commercial buildings and hospitals use air conditioning to achieve precise temperature control and energy efficiency.
  Constant temperature and humidity laboratory to ensure stable airflow.
• Environmental protection engineering
  Provide stable airflow delivery in systems such as exhaust gas treatment and flue gas desulfurization.
  The aeration system of the sewage treatment plant maintains a constant oxygen supply.

GuangDong Zhufeng Electric Co.,LTD established in 2004, is a national high-tech and energy save enterprise with approval by National Development and Reform Commission. Focusing on the development and production and sale of products of “energy saving and control speed and variable speed” , Zhufeng has been a very good supplier for energy saving and automation control solutions . With it’s own brands: “ACI”,“ZFENG”, Zhufeng has developed DLT series products including vector and universal variable frequency drive, servo system, energy saving cabinet, industrial power saver, soft starter etc. Applications including ceramic, machinery, petrochemical, metal, textile, food, papermaking, cement, water supply, plastic injection, central air-conditioning, smart building,etc.