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 | AC Synchronous Electric Motor |
| Current | AC |
| Material | Rare Earth NdFeB |
| Power Range | 5.5-3000kw |
| Installation | IMB3 IMB5 IMB35 |
| Phase | 3 phase |
| Features | gearless and brushless |
| speed range | wide |
| Service | ODM, OEM |
| Applications | pumps, compressors, fans, and machine tools |
| Brand Name | ENNENG |
| Model Number | PMM |
| Certification | CE,UL |
| Place of Origin | China |
View Detail Information
Explore similar products
Sensorless Control 8kw 15kw PMSM Motor High Power 10kw Permanent Magnet Motor
Brushless Surface Mounted PMSM Motor Low Speed Waterproof Natural Cooling
High Power Density Surface Mounted PMSM Motor IP54 Low Temperature Rise
Simple Structure Surface PMSM Motor , Permanent Magnet Synchronous Machine
Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 20000 sets/year |
| Delivery Time | 15-120 days | Packaging Details | seaworthy packing |
| Name | AC Synchronous Electric Motor | Current | AC |
| Material | Rare Earth NdFeB | Power Range | 5.5-3000kw |
| Installation | IMB3 IMB5 IMB35 | Phase | 3 phase |
| Features | gearless and brushless | speed range | wide |
| Service | ODM, OEM | Applications | pumps, compressors, fans, and machine tools |
| Brand Name | ENNENG | Model Number | PMM |
| Certification | CE,UL | Place of Origin | China |
| High Light | 3 Phase PMSM Motor Manufacturers ，Lightweight 3 Phase PMSM Motor ，Small Size PMSM Motor | ||
Small Size Light Weight 3 Phase PMSM Motor For Induction Motor Replacement
What Is The Permanent Magnet Synchronous Motor?
The Permanent Magnet Synchronous Motor (PMSM) is a type of electric motor that operates using permanent magnets embedded in its rotor. It is also sometimes referred to as a brushless AC motor or a synchronous permanent magnet motor.
In a PMSM, the stator (the stationary part of the motor) contains a series of coils that are energized in a sequence to create a rotating magnetic field. The rotor (the rotating part of the motor) contains a series of permanent magnets that are arranged to produce a magnetic field that interacts with the magnetic field produced by the stator.
As the two magnetic fields interact, the rotor rotates, producing mechanical energy that can be used to power machinery or other devices. Because the permanent magnets in the rotor provide a strong, constant magnetic field, PMSMs are highly efficient and require less energy to operate than other types of electric motors.
PMSMs are used in a wide variety of applications, including electric vehicles, industrial machinery, and household appliances. They are known for their high efficiency, low maintenance requirements, and precise control, which makes them a popular choice for many different types of systems.
Working of Permanent Magnet Synchronous Motor:
The working of the permanent magnet synchronous motor is very simple, fast, and effective when compared to conventional motors. The working of PMSM depends on the rotating magnetic field of the stator and the constant magnetic field of the rotor. The permanent magnets are used as the rotor to create constant magnetic flux, and operate and lock at synchronous speed. These types of motors are similar to brushless DC motors.
The phasor groups are formed by joining the windings of the stator with one another. These phasor groups are joined together to form different connections like a star, Delta, and double and single phases. To reduce harmonic voltages, the windings should be wound shortly with each other.
When the 3-phase AC supply is given to the stator, it creates a rotating magnetic field and the constant magnetic field is induced due to the permanent magnet of the rotor. This rotor operates in synchronism with the synchronous speed. The whole working of the PMSM depends on the air gap between the stator and rotor with no load.
If the air gap is large, then the windage losses of the motor will be reduced. The field poles created by the permanent magnet are salient. The permanent magnet synchronous motors are not self-starting motors. So, it is necessary to control the variable frequency of the stator electronically.
EMF and Torque Equation
In a synchronous machine, the average EMF induced per phase is called dynamic induces EMF in a synchronous motor, the flux cut by each conductor per revolution is Pϕ Weber
Then the time taken to complete one revolution is 60/N sec
The average EMF induced per conductor can be calculated by using
( PϕN / 60 ) x Zph = ( PϕN / 60 ) x 2Tph
Where Tph = Zph / 2
Therefore, the average EMF per phase is,
= 4 x ϕ x Tph x PN/120 = 4ϕfTph
Where Tph = no. Of turns connected in series per phase
ϕ = flux/pole in Weber
P= no. Of poles
F= frequency in Hz
Zph= no. Of conductors connected in series per phase. = Zph/3
The EMF equation depends on the coils and the conductors on the stator. For this motor, the distribution factor Kd and pitch factor Kp are also considered.
Hence, E = 4 x ϕ x f x Tph xKd x Kp
The torque equation of a permanent magnet synchronous motor is given as,
T = (3 x Eph x Iph x sinβ) / ωm
Permanent magnet AC (PMAC) motors have a wide range of applications including:
Industrial Machinery: PMAC motors are used in a variety of industrial machinery applications, such as pumps, compressors, fans, and machine tools. They offer high efficiency, high power density, and precise control, making them ideal for these applications.
Robotics: PMAC motors are used in robotics and automation applications, where they offer high torque density, precise control, and high efficiency. They are often used in robotic arms, grippers, and other motion control systems.
HVAC Systems: PMAC motors are used in heating, ventilation, and air conditioning (HVAC) systems, where they offer high efficiency, precise control, and low noise levels. They are often used in fans and pumps in these systems.
Renewable Energy Systems: PMAC motors are used in renewable energy systems, such as wind turbines and solar trackers, where they offer high efficiency, high power density, and precise control. They are often used in the generators and tracking systems in these systems.
Medical Equipment: PMAC motors are used in medical equipment, such as MRI machines, where they offer high torque density, precise control, and low noise levels. They are often used in the motors that drive the moving parts in these machines.
Advantages:
Small And Lightweight
In special electromagnetic and structural design, the volume-to-weight ratio is reduced by 20%, the length of the whole machine is reduced by 10%, and the full rate of stator slots is increased to 90%.
Highly Integrated
The motor and the inverter are highly integrated, avoiding the external circuit connection between the motor and the inverter, and improving the reliability of the system products.
Energy Efficient
High-performance rare-earth permanent magnet material, special stator slot, and rotor structure make this motor efficient up to IE4 standard.
Custom Design
Customized design and manufacture, dedicated to special machines, reduce redundant functions and design margins and minimize costs.
Low Vibration And Noise
The motor is directly driven, the equipment noise and vibration are small, and the impact on the construction work environment is reduced.
Maintenance Free
No high-speed gear parts, no need to change gear lubricant regularly, and truly maintenance-free equipment.
IPM VS SPM
A permanent magnet motor (also called PM) can be separated into two main categories: Interior Permanent Magnet (IPM) and Surface Permanent Magnet (SPM). Both types generate magnetic flux by the permanent magnets affixed to or inside of the rotor.
SPM
SURFACE PERMANENT MAGNET
A type of motor in which permanent magnets are attached to the rotor circumference.
SPM motors have magnets affixed to the exterior of the rotor surface, their mechanical strength is so weaker than the IPM ones. The weakened mechanical strength limits the motor’s maximum safe mechanical speed. In addition, these motors exhibit very limited magnetic saliency (Ld ≈ Lq). Inductance values measured at the rotor terminals are consistent regardless of the rotor position. Because of the near unity saliency ratio, SPM motor designs rely significantly, if not completely, on the magnetic torque component to produce torque.
IPM
INTERIOR PERMANENT MAGNET
A type of motor that has a rotor embedded with permanent magnets is called IPM.
IPM motors have a permanent magnet embedded into the rotor itself. Unlike their SPM counterparts, the location of the permanent magnets makes IPM motors very mechanically sound, and suitable for operating at very high speeds. These motors also are defined by their relatively high magnetic saliency ratio (Lq > Ld). Due to their magnetic saliency, an IPM motor has the ability to generate torque by taking advantage of both the magnetic and reluctance torque components of the motor.
Company Details
Business Type:
Manufacturer
Year Established:
2014
Total Annual:
2,000,000.00-4,000,000.00
Employee Number:
100~200
Ecer Certification：
Site Member
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...
Get in touch with us
Leave a Message, we will call you back quickly!