QINGDAO ENNENG MOTOR CO.,LTD.
QINGDAO ENNENG MOTOR CO.,LTD.
Add to Cart
IP54 IP55 High Power Low Speed Permanent Magnet Generator
Product Drawing
Technical Parameter
| No. | Parameter | Units | Data |
| 1 | Rated output power | KW | 100 |
| 2 | Rated speed | RPM | 500 |
| 3 | Rated output voltage | VAC | 400 |
| 4 | Rated current | A | 145 |
| 5 | Rated frequency | Hz | 50 |
| 6 | Poles | 12 | |
| 7 | Efficiency at rated speed | ＞95.2% | |
| 8 | Winding type | Y | |
| 9 | Insulation resistance | 25MΩ | |
| 10 | Insulation | class | H |
| 11 | Rated torque | Nm | 2010 |
| 12 | Start torque | Nm | ＜50 |
| 13 | Temperature rise | °C | 90 |
| 14 | Max .working temperature | °C | 130 |
| 15 | Weight | Kg | 600 |
Detailed Pictures
Permanent magnet generators are devices that convert mechanical movements to electricity using their own magnetic fields.It’s a type of electric motor that uses permanent magnets rather than windings on its field.These devices are commonly used in wind turbines, steam turbines, gas turbines, and engines to create electrical power.They consist of two main components: a rotor with powerful magnets and a stator with copper coils. The rotor is made from permanent magnets, and it could generate magnetic fields. Magnetic parts are set around the stators as well, so fluxes could compass them.The stator is composed of rotating coils. Once receiving the magnetic power, the stator generates electricity consequently.In this way, the movement of the rotors is transformed into electric energy. The more stator coils we have, the more electric currents we get.
The structure
The permanent magnet generator is mainly composed of a rotor, end cover, and stator. The structure of the stator is very similar to that of an ordinary alternator. The biggest difference between the structure of the rotor and the alternator is that there are high-quality According to the position of the permanent magnet on the rotor, the permanent magnet generator is usually divided into a surface rotor structure and a built-in rotor structure.
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.
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.
By matching the power and speed of the generator to that of the wind turbine, the power system becomes more efficient. No gearboxes are needed, and the efficiency of the alternator exceeds 90%.
2. Variable speed generators provide a solution for Hydro Industry.
Increased efficiency from variable speed technology could make many more small hydro sites economically feasible to develop.
More and more people are choosing permanent magnetic generators to replace traditional generators in some applications.
Compared with conventional generators, reducing other rotating parts such as gear, is a safer option. Simplicity makes maintenance easier, Reduces energy consumption, and saves power up to 40%, IE4 standard
(1) Free Energy Source
Permanent magnet generators generate electricity with the inside magnets that can be used to power other electric devices, which means that you will no longer need to pay for the expensive electric bills. In addition, you can even sell your excessive electricity to local utilities and get payment from them.
(2) Low Installation Fee
Compared to generators powered by other renewable and green energy, solar energy and wind power, for example, permanent magnetic generators work independently of factors inside or outside of your house. You will no longer need to worry about the weather.
(3) Reliable Energy Output
A permanent magnet generator will not cost you a lot of money to install. You only need to buy everything necessary in a hardware store with little money and assemble one by yourself. With only hundreds of dollars, in one day, or less time, you can have your own permanent magnet generators at home.
(4) Maintenance Free
Another great thing about permanent magnet generators is that you do not need to spend a lot of time and money on maintenance work.
How do permanent magnets work in wind turbines?
The operation of wind turbine generators is based on electromagnetic principles, usually following the first electromagnetic principle devised by Michael Faraday in 1831. When an electrical conductor rotates in a magnetic field, it generates electricity. When the blades of the turbine rotate in the direction of the wind, electromagnetic induction occurs within the magnetic field of the permanent magnets in the turbine to generate electricity. An electric generator connected to the shaft of the wind turbine converts the movement of the blades converted into electrical energy. However, instead of the slip rings used in electromagnets, the permanent magnets in wind turbines use the magnetic fields of strong rare-earth magnets.