PMSM Water Pump

1.Introduction

As the global energy crisis intensifies and awareness of environmental protection increases, energy conservation and environmental protection have become a global consensus. As an equipment with large energy consumption, water pumps are widely used in industry, construction, agriculture and other fields. Therefore, improving the energy efficiency of water pumps has become an important issue in the industry. Permanent magnet technology, as an emerging technology with high efficiency and energy saving, has been widely used. in the field of water pumps to achieve energy saving and environmental protection of water pumps.

2.Industrial Overview

The water pump uses a permanent magnet synchronous motor（PMSM）. This motor has the characteristics of high efficiency, low noise, and low energy consumption. It can convert electrical energy into mechanical energy more effectively, thereby improving the efficiency of the water pump. Ordinary magnetic pumps work based on the principle of magnetic coupling. The motor drives the inner magnetic rotor through the magnetic coupler, and the inner magnetic rotor drives the outer magnetic rotor through magnetic force, thereby realizing the operation of the pump. This non-contact magnetic force transmission method enables the magnetic pump to achieve completely sealed operation, effectively avoiding environmental pollution and safety hazards caused by leakage.

3.Wiring Diagram

4.Parameter Settings

5.Photos at Site

6.Solution Features

• Significant energy-saving effect: The VFD can achieve precise control of the permanent magnet synchronous motor. After being put into use, due to its efficient and precise control capabilities, it can significantly reduce the energy consumption of the motor, and the effect of saving electric energy is obvious.
• A variety of operating states can be achieved: The VFD drives the permanent magnet synchronous motor, which can achieve low speed and high torque, high speed and low torque and other program controls during the working process, making the running state of the motor more flexible and changeable.
• High control accuracy: The  motor can cooperate with the VFD to achieve open-loop vector control, which can realize real-time monitoring and control of various key parameters such as speed, torque, voltage, and current. The control accuracy is high and the safety of the motor is ensured. , stable operation.
• Low maintenance costs: In industrial applications, when permanent magnet synchronous motor and VFD are used to drive equipment, maintenance costs are relatively low and the economic benefits are significant.