200kw Vertical / Horizontal Wind Turbine Generator PMG High Efficiency

Vertical And Horizontal Wind Turbine Permanent Magnet Alternator

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What is the permanent magnet generator?

A permanent magnet synchronous generator is a generator where the excitation field is provided by a permanent magnet instead of a coil. The term synchronous refers here to the fact that the rotor and magnetic field rotate with the same speed because the magnetic field is generated through a shaft-mounted permanent magnet mechanism and current is induced into the stationary armature.

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.

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 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.

These are some common classifications of permanent magnet generators, but there may be other ways to classify them based on specific parameters.

Benefits:

1. High efficiency: PMGs are highly efficient and can convert up to 90% of mechanical energy into electrical energy. This means that they require less fuel or energy input to produce the same amount of electricity as other types of generators.

2. Low maintenance: PMGs have fewer moving parts than traditional generators, which means that they require less maintenance and are less likely to break down. This makes them a more reliable and cost-effective option in the long run.

3. Environmentally friendly: PMGs are a clean and renewable source of energy that produce no emissions or pollutants. They are an excellent option for off-grid applications or for powering remote locations where traditional power sources are not available.

4. Versatility: PMGs can be used for a wide range of applications, from small-scale residential use to large-scale industrial and commercial applications. They can be used to power homes, businesses, farms, and even entire communities.

5. Cost-effective: PMGs are generally more cost effective than traditional generators, especially over the long term. Although they may have a higher upfront cost, their lower maintenance and fuel costs make them a more affordable option in the long run.

Overall, PMGs are an important technology for the future of renewable energy. As the world continues to shift towards cleaner, more sustainable sources of energy, PMGs will play an increasingly important role in meeting our energy needs.

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.

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 emissions. We believe that it is our responsibility to contribute to a sustainable future by promoting energy-efficient solutions and reducing our carbon footprint.

Enneng Motor has been committed to the research and development of various permanent magnet AC motors that can directly drive equipment, usually low-speed, high-torque motors, optimized for mechanical equipment with reducer + motor drive in the transmission system. These motors usually have a durable design, high efficiency, and low noise level, and can provide customers with customized services from equipment transmission design to provide special sizes and rated power options to meet the needs of different applications, so as to achieve energy-saving performance.

Honors

Permanent magnet generators are suitable for small and low-head hydro sites and small and low-speed wind power generation. Our products are highly efficient and reliable, making it possible for more and more small-size hydro and wind power generation projects to become feasible.

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Our mission is to help our customers succeed by providing effective solutions. We believe that by providing high-quality permanent magnet generators, we can help our customers to successfully build sustainable and environmentally friendly energy systems. We invite you to join us in our mission to build a more sustainable world together.