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Home > products > Permanent Magnet Generator > High Torque Permanent Magnet Electric Generator Direct Drive Maintenance Free

High Torque Permanent Magnet Electric Generator Direct Drive Maintenance Free

Product Details

Place of Origin: China

Brand Name: ENNENG

Certification: CE

Model Number: PMG

Payment & Shipping Terms

Minimum Order Quantity: 1

Price: USD 1000-5000/set

Packaging Details: seaworthy packing

Delivery Time: 15-120 days

Payment Terms: L/C, T/T

Supply Ability: 20000 sets/year

Get Best Price
Highlight:

IP54 Permanent Magnet Electric Generator

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50HZ Permanent Magnet Electric Generator

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High Torque Permanent Magnet Generator

Name:
Maintenance Free Permanent Magnet Electric Generator
Current Type:
AC
Power Range:
5-3000kw
Protection Grade:
IP54 IP55
Winding Material:
100% Copper
Application:
Wind Turbine, Hydro Turbine
Installation:
IMB3 IMB5 IMB35
Voltage:
400V
Frequency:
50HZ
Name:
Maintenance Free Permanent Magnet Electric Generator
Current Type:
AC
Power Range:
5-3000kw
Protection Grade:
IP54 IP55
Winding Material:
100% Copper
Application:
Wind Turbine, Hydro Turbine
Installation:
IMB3 IMB5 IMB35
Voltage:
400V
Frequency:
50HZ
High Torque Permanent Magnet Electric Generator Direct Drive Maintenance Free

High Torque Direct Drive Maintenance Free Permanent Magnet Electric Generator

 

Product Drawing

High Torque Permanent Magnet Electric Generator Direct Drive Maintenance Free 0

 

Technical Parameter

 
RATED POWER
RATED SPEED
RATED VOLTAGE
FREQUENCY
5KW
20rpm~1500rpm
48V~690Vac
10Hz~60Hz
10KW
20rpm~1500rpm
120V~690Vac
10Hz~60Hz
15KW
20rpm~3000rpm
120V~690Vac
10Hz~60Hz
20KW
20rpm~3000rpm
120V~690Vac
10Hz~60Hz
25KW
20rpm~3000rpm
120V~1140Vac
10Hz~60Hz
30KW
20rpm~3000rpm
120V~1140Vac
10Hz~60Hz
50KW
20rpm~3000rpm
220V~1140Vac
10Hz~60Hz
80KW
20rpm~3000rpm
220V~1140Vac
10Hz~60Hz
100KW
20rpm~3000rpm
220V~1140Vac
10Hz~60Hz
150KW
20rpm~3000rpm
380V~1140Vac
10Hz~60Hz
200KW
20rpm~3000rpm
380V~1140Vac
10Hz~60Hz
250KW
20rpm~3000rpm
380V~1140Vac
10Hz~60Hz
300KW
20rpm~3000rpm
380V~1140Vac
10Hz~60Hz
500KW
20rpm~3000rpm
380V~1140Vac
10Hz~60Hz
700KW
20rpm~3000rpm
690V~1140Vac
10Hz~60Hz
800KW
20rpm~3000rpm
690V~1140Vac
10Hz~60Hz
1MW
200rpm~3000rpm
690V~1140Vac
10Hz~60Hz
2MW
200rpm~3000rpm
690V~1140Vac
10Hz~60Hz
3MW
200rpm~3000rpm
690V~1140Vac
10Hz~60Hz

 

Detailed Pictures

High Torque Permanent Magnet Electric Generator Direct Drive Maintenance Free 1

What is the permanent magnet generator?

A permanent magnet generator (PMG) is an electric generator that uses permanent magnets to create a magnetic field. The magnetic field is used to induce a voltage in a coil of wire that is connected to the generator. This voltage is then used to power electrical devices or to store energy in batteries.

 

The structure

 

The design of a PMG is relatively simple. It consists of a rotor, stator, and permanent magnets. The rotor is a rotating shaft that contains permanent magnets. The stator is a stationary component that surrounds the rotor and contains the coils of wire. When the rotor spins, the magnetic field created by the permanent magnets cuts across the coils of wire in the stator, inducing a voltage.

High Torque Permanent Magnet Electric Generator Direct Drive Maintenance Free 2

 

Working Principle

 

The permanent magnet generator uses the principle of electromagnetic induction in that the wire cuts the magnetic field line to induce an electric potential and converts the mechanical energy of the prime mover into electrical energy output. It consists of two parts, the stator, and the rotor. The stator is the armature that generates the electricity and the rotor is the magnetic pole. The stator is composed of an armature iron core, uniformly discharged three-phase winding, machine base, and end cover.

The rotor is usually a hidden pole type, which is composed of excitation winding, iron core and shaft, guard ring, center ring, and so on.

The excitation winding of the rotor is fed with DC current to generate a magnetic field close to the sinusoidal distribution (called the rotor magnetic field), and its effective excitation flux intersects with the stationary armature winding. When the rotor rotates, the rotor's magnetic field rotates together with it. Every time a revolution is made, the magnetic lines of force cut each phase winding of the stator in sequence, and a three-phase AC potential is induced in the three-phase stator winding.

When the pm generator is running with a symmetrical load, the three-phase armature current synthesizes to generate a rotating magnetic field with synchronous speed. The stator and rotor fields interact to generate braking torque. The mechanical torque input from the turbine overcomes the braking torque and works.

High Torque Permanent Magnet Electric Generator Direct Drive Maintenance Free 3

 

Features

① The generator has many poles, which improve the frequency and efficiency, saving the cost of rectifiers and inverters.

② Finite Element Analysis is used when designing the generator, compact structure. Low startup torque, solves the problem of small wind startup, improving wind energy utilization.

③ Leave out the gear increaser, improve the reliability and efficiency of the generator, and lower the amount of maintenance.

④ H class insulation, vacuum pressure impregnation.

⑤ Have many structures such as vertical axis, horizontal axis, internal rotor, external rotor, and plate type.

⑥ Strong rotors, the generator could achieve high speed.

⑦ Small size, lightweight, high energy density, suitable for special situations.

⑧ Run efficiency throughout the whole speed range, high efficiency.

⑨ Use imported high-speed oil-contained bearings, maintenance free, and high reliability.

⑩ The parameters like voltage, speed, and power can be customized. The shape can be changed. Spline shaft, biaxial extension, and flange can be used.
 
Application
 
PMGs are used in a variety of applications, including wind turbines, hydroelectric dams, and wave energy converters. They are particularly useful in situations where it is difficult or impossible to connect to a power grid, such as remote locations or offshore installations.
 
Advantages

 

One of the advantages of PMGs is that they do not require an external power source to generate electricity. This makes them ideal for off-grid applications where a reliable source of electricity is needed. In addition, PMGs are relatively low-maintenance compared to other types of generators, as they do not require brushes or other components that wear out over time.

Another great thing about permanent magnet generators is that you do not need to spend a lot of time and money on maintenance work. Just install it and wait there expecting it to make money for you!

 

The classification of permanent magnet generator:

 

Permanent magnet generators (PMGs) can be classified based on various factors, such as the type of magnet, the application, the number of phases, and the power rating. Here are some common classifications of permanent magnet generators:

 

Based on magnet type: a. Ferrite Magnet PMG: These generators use ferrite magnets, which are less expensive and have a lower magnetic strength than rare-earth magnets. b. Rare-Earth Magnet PMG: These generators use neodymium or samarium-cobalt magnets, which are more expensive but have a higher magnetic strength than ferrite magnets.

 

Based on application: a. Wind Turbine PMG: These generators are designed for use in wind turbines and are typically used in small-scale or off-grid applications. b. Hydroelectric PMG: These generators are designed for use in hydroelectric power plants and are typically used in large-scale applications.

 

Based on the number of phases: a. Single-phase PMG: These generators have a single output phase and are used in low-power applications. b. Three-phase PMG: These generators have three output phases and are used in high-power applications.

 

Based on power rating: a. Low-power PMG: These generators have a power rating of up to a few kilowatts and are used in small-scale applications. b. High-power PMG: These generators have a power rating of several megawatts and are used in large-scale applications, such as wind turbines and hydroelectric power plants.

 

 

Future of Permanent Magnet Generator:

Based on current trends and advancements in technology, the future of permanent magnet generators looks promising. These generators are becoming increasingly popular in various industries, including wind and hydropower generation, due to their high efficiency, low maintenance, and reliability.

 

One of the significant advantages of permanent magnet generators is their ability to generate power at low speeds, making them ideal for use in low-wind areas and small-scale applications. They also have a more compact design, which reduces the overall weight and size of the generator, making it easier to install and transport.

With the growing demand for renewable energy sources, permanent magnet generators are likely to play a significant role in the future of energy production. As technology advances, these generators are expected to become more efficient, cost-effective, and versatile, making them suitable for a broader range of applications.

 

Overall, the future of permanent magnet generators looks bright, and they are likely to continue to be a popular choice for renewable energy production.