No. A small household ceiling fan cannot be modified into a wind generator. To use a permanent magnet DC motor, you only need to lengthen the fan blades to increase the input kinetic energy of the motor. If it is a squirrel cage rotor, it cannot be changed.
The rotor has been changed to a permanent magnet, so there is no need for an operating capacitor. The original stator winding does not need to be modified. The two terminals of the main winding are used as outputs; if the rotor is changed to a 2-pole permanent magnet, It is necessary to use the motive force to drag the rotor to rotate at 3000 revolutions per minute.
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Since Taiwan began to produce ceiling fans crazily more than 20 years ago, there are now thousands of styles on the market. For sale online, from single color to colorful, the styles include ordinary cas type, Victorian style, unique Italian style, European classical style, ancient Roman style characterized by luxury and magnificence, mysterious ancient Greek style, modern simple and generous style, etc. wait.
With the trend of global warming and environmental protection and energy conservation, the use of high-power-consuming household appliances such as air conditioners is becoming more and more restricted. One air conditioner is equivalent to the power consumption of 20 ceiling fans. When the temperature does not exceed Using a fan at 30 degrees Celsius can completely achieve the effect of cooling and driving away heat, and among all fans (table fans, floor fans, ceiling fans, etc.).
Only ceiling fans produce the largest air volume with the same amount of electricity (air volume is the product of wind speed and area, which is equivalent to the flow of water), so the United States recommends the use of energy-saving appliances such as ceiling fans. It is also found that using a ceiling fan in conjunction with an air conditioner can reduce the load on the air conditioner, and also prevents people from catching a cold without causing a temperature difference in the room. The comfort level is quite good.
I have a household electric fan motor, which is new, and I want to change it into a generator. How should I change it?
Owner, this cannot be changed. The principle is as follows:
1. There is no permanent magnet in the electric fan. The electric fan converts electrical energy into a magnetic field through a coil, and then a energized coil rotates under the action of this magnetic field, which is the motor in the electric fan.
2. Generators need permanent magnets. If the stator of a generator is made of permanent magnets, then when the rotor rotates in this magnetic field environment, current will be generated.
So if the landlord wants to retrofit a wind turbine with an electric fan, he must directly replace the motor with a generator. The wind then blows the fan blades to drive the generator to generate electricity. It is still difficult to convert an electric motor into a generator.
It’s just a hand fight, give me points.
Can an electric fan with a power of 7W be made into a wind generator
1. Changing a household electric fan motor into a generator does not require modification (the running capacitor cannot be removed) , as long as the motive force is used to dragWhen the rotor rotates at 1500 revolutions per minute, 220V electric energy can be output at both ends of the main winding.
2. The rotor has been changed to a permanent magnet, so there is no need for an operating capacitor. The original stator winding does not need to be modified. The two terminals of the main winding are used as outputs; if the rotor is changed to a 2-pole permanent magnet, Magnetic, the motive force must be used to drive the rotor to rotate at 3,000 rpm.
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Notes:
1. See the random file
The motor fan is installed randomly Instructions for use, product certificates, electrical circuit diagrams and packing lists must be checked and components must be checked.
2. Look at the appearance of the motor fan
Carefully check whether the motor fan grille and fan blades are obviously deformed. The fan blades should be rotated briskly and flexibly, and should not always stop at the same position.
3. Look at the starting performance
The starting performance is an important quality indicator of the motor fan. During the inspection, at slow speed and 85% of the rated voltage of the power supply, the motor fan should be able to start from standstill and operate normally. The shorter the time it takes for a motor fan to start to normal operation, the better the starting performance of the motor fan. .
4. Check the speed regulation performance
After power is turned on, there should be no abnormal noise in the mechanical transmission part of the fan. When the electric fan is running at high, medium or low speed, the motor and fan blades should be stable, with small vibration and low noise. The motor fan should shake and stop quickly without interruption, stagnation or jitter.
5. Check whether there is electric leakage
After the motor fan is powered on, if you feel numbness and electricity when you touch it with your hand, use a test pen to test. The test pen also has a luminous display, which can determine whether the shell is leaking or not. want.
References:
Yes
Motors and generators are inherently reversible.
A generator uses a steam turbine to drive a rotor. A magnetic field is established on the rotor by the excitation current. When the rotor rotates, It will cause the coil on the stator to cut the magnetic field to generate current. The motor uses the current to establish a rotating magnetic field on the stator, and then cooperates with the fixed magnetic field on the stator to drive the rotor to rotate.
Motors and generators are inherently electrical and The magnetic conversion operation can be modified with each other. However, during modification, there will be a problem of phase angle (motor to generator) or speed (generator to motor), which must be compensated by other measures.
In the past, people in rural areas often used diesel engines to drive the rotor of the motor, and then connected the load to the stator. There was also an accident in a power plant when the motor was used as a generator, called reverse power transmission. If the wrong load switch was turned on when the generator did not start generating electricity. , then the electricity from the grid will be sent to the generator. The generator will turn into a motor to rotate.