QINGDAO ENNENG MOTOR CO.,LTD.
| Payment Terms | L/C, T/T |
| Supply Ability | 20000 sets/year |
| Delivery Time | 15-120 days |
| Packaging Details | seaworthy packing |
| Name | PMSM Electric Motor For Water Pumps |
| Current | AC |
| Material | Rare Earth NdFeB |
| Power Range | 5.5-3000kw |
| Installation | IMB3 IMB5 IMB35 |
| Poles | 2,4,6,8,10,etc. |
| Protection Grade | IP54 IP68 IP65 |
| Frequency | 50/60Hz |
| Application | water pumps, fans, testbench adaption. |
| Service | ODM, OEM |
| Brand Name | ENNENG |
| Model Number | PMM |
| Certification | CE,UL |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 20000 sets/year |
| Delivery Time | 15-120 days | Packaging Details | seaworthy packing |
| Name | PMSM Electric Motor For Water Pumps | Current | AC |
| Material | Rare Earth NdFeB | Power Range | 5.5-3000kw |
| Installation | IMB3 IMB5 IMB35 | Poles | 2,4,6,8,10,etc. |
| Protection Grade | IP54 IP68 IP65 | Frequency | 50/60Hz |
| Application | water pumps, fans, testbench adaption. | Service | ODM, OEM |
| Brand Name | ENNENG | Model Number | PMM |
| Certification | CE,UL | Place of Origin | China |
| High Light | Water Pumps PMSM Electric Motor ，PMSM Electric Motor Energy Saving ，PMSM Electric Motor IP68 | ||
Energy Saving Low Carbon Emissions PMSM Electric Motor For Water Pumps
What Is The Permanent Magnet Synchronous Motor?
Permanent magnet motors are electric motors that use permanent magnets instead of electromagnets to create the magnetic field required for the motor's operation. These magnets are typically made of rare-earth elements such as neodymium or samarium-cobalt, which have strong magnetic properties. The use of permanent magnets eliminates the need for a separate power source to create the magnetic field, resulting in a more efficient and compact motor design. Permanent magnet motors are commonly used in various applications such as electric vehicles, wind turbines, and industrial machinery.
Analysis of the principle of the technical advantages of permanent magnet motor
The permanent magnet synchronous motor working principle is similar to the synchronous motor. The principle of operation is based on the interaction of the rotating magnetic field of the stator and the constant magnetic field of the rotor. It depends on the rotating magnetic field that generates electromotive force at synchronous speed.
When the stator winding is energized by giving the 3-phase supply, a rotating magnetic field is created in between the air gaps. This produces the torque when the rotor field poles hold the rotating magnetic field at synchronous speed and the rotor rotates continuously. As these motors are not self-starting, it is necessary to provide a variable frequency power supply.
Differences Between The Permanent Magnet Motor And Asynchronous Motor:
01. Rotor Structure
Asynchronous motor: The rotor consists of an iron core and a winding, mainly squirrel-cage and wire-wound rotors. A squirrel-cage rotor is cast with aluminum bars. The magnetic field of the aluminum bar cutting the stator drives the rotor.
PMSM Motor: The permanent magnets are embedded in the rotor magnetic poles, and are driven to rotate by the rotating magnetic field generated in the stator according to the principle of magnetic poles of the same phase attracting different repulsions.
02. Efficiency
Asynchronous motors: Need to absorb current from the grid excitation, resulting in a certain amount of energy loss, motor reactive current, and low power factor.
PMSM Motor: The magnetic field is provided by permanent magnets, the rotor does not need exciting current, and the motor efficiency is improved.
03. Volume And Weight
The use of high-performance permanent magnet materials makes the air gap magnetic field of permanent magnet synchronous motors larger than that of asynchronous motors. The size and weight are reduced compared to asynchronous motors. It will be one or two frame sizes lower than asynchronous motors.
04. Motor Starting Current
Asynchronous motor: It is directly started by power frequency electricity, and the starting current is large, which can reach 5 to 7 times the rated current, which has a great impact on the power grid in an instant. The large starting current causes the leakage resistance voltage drop of the stator winding to increase, and the starting torque is small so heavy-duty starting cannot be achieved. Even if the inverter is used, it can only start within the rated output current range.
PMSM Motor: It is driven by a dedicated controller, which lacks the rated output requirements of the reducer. The actual starting current is small, the current is gradually increased according to the load, and the starting torque is large.
05. Power Factor
Asynchronous motors have a low power factor, they must absorb a large amount of reactive current from the power grid, the large starting current of asynchronous motors will cause a short-term impact on the power grid, and long-term use will cause certain damage to the power grid equipment and transformers. It is necessary to add power compensation units and perform reactive power compensation to ensure the quality of the power grid and increase the cost of equipment use.
There is no induced current in the rotor of the permanent magnet synchronous motor, and the power factor of the motor is high, which improves the quality factor of the power grid and eliminates the need to install a compensator.
06. Maintenance
Asynchronous motor + reducer structure will generate vibration, heat, high failure rate, large lubricant consumption, and high manual maintenance cost; it will cause certain downtime losses.
The three-phase Permanent magnet synchronous motor drives the equipment directly. Because the reducer is eliminated, the motor output speed is low, mechanical noise is low, mechanical vibration is small, and the failure rate is low. The entire drive system is almost maintenance-free.
The three-phase Permanent magnet synchronous motor drives the equipment directly. Because the reducer is eliminated, the motor output speed is low, mechanical noise is low, mechanical vibration is small, and the failure rate is low. The entire drive system is almost maintenance-free.
The characteristics and advantages of permanent magnet motors:
Motor from the source of excitation can be divided into two categories: permanent magnet motor, and electric excitation motor. A permanent magnet motor is an electric motor that produces an excitation magnetic field from a permanent magnet. The most widely used three-phase asynchronous motors in industry and civil use, such as Y-Series, Y2-Series, YE2-Series, YX3 Series, Series YB, series YB2 series, etc. all belong to electric excitation motors. ENNENG Motor products are ultra-efficient permanent magnet synchronous motors.
Compared with traditional electric excitation motors, permanent magnet motors, especially rare earth permanent magnet motors, have the advantages of simple structure, reliable operation, small size, lightweight, small loss and high efficiency, and flexible and diverse shape and size of the motor. The application is extremely wide, covering almost all areas of aerospace, national defense, industrial and agricultural production, and daily life.
A permanent magnet synchronous motor (PMSM) is a type of electric motor that uses permanent magnets in the rotor to create a magnetic field. Some of the features of a PMSM motor include:
High efficiency: PMSM motors are highly efficient, with efficiency levels of up to 98%. This is because they have a lower power loss than other types of motors due to their permanent magnets.
High power density: PMSM motors have a high power density, which means they can deliver a high level of power in a small package. This makes them ideal for use in applications where space is limited.
High torque: PMSM motors have high torque density, which means they can produce a lot of torque in a small package. This makes them ideal for use in applications where high torque is required.
Precise control: PMSM motors are known for their precise control, which makes them ideal for use in applications where accurate speed control is required.
Low maintenance: PMSM motors have a simple design and do not require much maintenance. This makes them ideal for use in applications where maintenance is difficult or expensive.
Wide speed range: PMSM motors have a wide speed range, which makes them suitable for use in a variety of applications.
Low noise and vibration: PMSM motors operate quietly and produce minimal vibration, making them suitable for use in applications where noise and vibration must be kept to a minimum.
Examples of test benches using permanent magnet motors
1. Electric vehicle drivetrain test bench: This test bench uses a permanent magnet motor to simulate the electric motor in an electric vehicle. The motor is connected to a battery simulator and a controller to test the performance of the drivetrain under various conditions.
2. Wind turbine generator test bench: This test bench uses a permanent magnet motor to simulate the generator in a wind turbine. The motor is connected to a wind simulator to test the generator's performance under various wind speeds and loads.
3. Pump test bench: This test bench uses a permanent magnet motor to simulate the pump in a hydraulic or pneumatic system. The motor is connected to a pressure and flow sensor to test the pump's performance under various pressure and flow conditions.
4. Electric motor test bench: This test bench uses a permanent magnet motor to test the performance of other electric motors. The motor is connected to a load simulator and a controller to test the motor's efficiency, torque, and speed under various load conditions.
5. Industrial automation test bench: This test bench uses a permanent magnet motor to simulate the motion control system in an industrial automation application. The motor is connected to a motion controller and a sensor to test the system's accuracy, repeatability, and response time.
Potential for further research and development in the use of permanent magnet motors in test benches.
The use of permanent magnet motors in test benches has gained significant attention in recent years due to their high efficiency, low maintenance requirements, and compact size. However, there is still potential for further research and development in this area, including:
1. Optimization of motor design: Although permanent magnet motors offer high efficiency, their performance can still be improved through optimization of the motor design. This includes the optimization of the magnet geometry, winding configuration, and cooling system, among others.
2. Development of new control techniques: The use of advanced control techniques can further enhance the performance of permanent magnet motors in test benches. For instance, model predictive control (MPC) can be used to improve the speed and torque control of the motor, while minimizing energy consumption.
3. Integration with renewable energy sources: The integration of permanent magnet motors with renewable energy sources, such as solar and wind power, can further reduce the environmental impact of test benches. This requires the development of appropriate power electronics and control systems to ensure efficient power conversion and utilization.
4. Application in new industries: Although permanent magnet motors are widely used in automotive and industrial applications, there is potential for their application in new industries, such as aerospace and marine. This requires the development of motors with high power density, high reliability, and low weight.
Overall, the use of permanent magnet motors in test benches offers significant benefits in terms of efficiency and performance. Further research and development in this area can lead to the development of more efficient and environmentally friendly test benches, as well as new applications for permanent magnet motors.
Company Details
Business Type:
Manufacturer
Year Established:
2014
Total Annual:
2,000,000.00-4,000,000.00
Employee Number:
100~200
Ecer Certification：
Verified Supplier
The value of Enneng is Technology is how we do things. People are why we do things. As a leading manufacturer of permanent magnet AC motors and generators, Enneng is committed to providing the best solutions for our customers while also prioritizing energy savings and low carbon emissio... The value of Enneng is Technology is how we do things. People are why we do things. As a leading manufacturer of permanent magnet AC motors and generators, Enneng is committed to providing the best solutions for our customers while also prioritizing energy savings and low carbon emissio...
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