Energy Efficiency Standards | comply with GB30253-1 grade | Work Mode | S1 |
Altitude | below 1000m | Environmental Temperature | -15～+40℃ |
Installation Dimensions | comply with IEC standard | Control Mode | variable frequency vector control |
Power Range | 5.5 〜3000kw | Install Type | IMB3 IMB5 IMB35 |
Cooling Way | IC411 or IC416 | Rated Efficiency | 50,75,125,150Hz(customized as per requirement) |
Insulation Class | F(H) | Optional Parts | Encoder, spiral transformer, PTC, PT100 |
Protection Grade | IP54(IP23 customizable) | Wiring Type | junction box (aviation plug can be customized as per requirement) |
Installation | IMB3 IMB5 IMB35 | Rated Voltage | 380V±10%,660V±10% |
Required Environment
| below 1000m altitude |
temperature -15〜45°C |
relative humidity below 90% |
What Is The Permanent Magnet Synchronous Motor?
1. Easy for replacement
The same installation size with asynchronous motor.
Due to the same motor seat number with same asynchronous
motor(output<315kW), it can be easily changed.
Note) Some type of motors are longer than asynchronous motor.
Details refer to outer dimension drawing.
2. High Power Factor
To reduce the capacity of power receiving equipment.
There is no doubt of high efficiency. Compared with asynchronous
motor and standard type synchronous motor, it can reduce the
current volume of equipment due to high power factor.
3.Speed control as per height
It is PG vector control.
Suitable for printer, punch compactor.
4. High efficiency & Energy Saving
Motor efficiency is equal to IE4 (Ultra high efficiency: above GB1
grade)
Note: IE4 is a efficiency grade specified in IEC 60034-30.
Detailed pictures
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,
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.
Why choose permanent magnet ac motors?
Permanent magnet AC (PMAC) motors offer several advantages over
other types of motors, including:
High Efficiency: PMAC motors are highly efficient due to the
absence of rotor copper losses and reduced winding losses. They can
achieve efficiencies of up to 97%, resulting in significant energy
savings.
High Power Density: PMAC motors have a higher power density
compared to other motor types, which means they can produce more
power per unit of size and weight. This makes them ideal for
applications where space is limited.
High Torque Density: PMAC motors have a high torque density, which
means they can produce more torque per unit of size and weight.
This makes them ideal for applications where high torque is
required.
Reduced Maintenance: Since PMAC motors have no brushes, they
require less maintenance and have a longer lifespan than other
motor types.
Improved Control: PMAC motors have better speed and torque control
compared to other motor types, making them ideal for applications
where precise control is required.
Application:
It can be used in general industrial equipment, cooling towers, bag
filters, papermaking machinery, textile machinery, transmission
tools, pumps, extruders, air compressors, fans, etc. It can
basically replace induction motors and DC motors in various
applications.
Surface-mounted PMSM
In this construction, the magnet is mounted on the surface of the
rotor. It is suited for high-speed applications, as it is not
robust. It provides a uniform air gap because the permeability of
the permanent magnet and the air gap is the same. No reluctance
torque, high dynamic performance, and suitable for high-speed
devices like robotics and tool drives.
Buried PMSM or Interior PMSM
In this type of construction, the permanent magnet is embedded into
the rotor as shown in the figure below. It is suitable for
high-speed applications and gets robust. Reluctance torque is due
to the saliency of the motor.
