Russia created a breakthrough electric motor without permanent magnets

20 2019 June 15

Russian engineers from the company "Electric Transport Technology»Managed to create a valve-induction automobile electric motor, the efficiency of which is 15% higher than that of foreign counterparts. At the same time, domestic development is cheaper, which ultimately will affect the price of cars in which the aforementioned motor will be used.

The essence of the innovation is that Russian designers used a copper coil to create the magnetic field needed to set the wheels of the car in motion. In most modern synchronous electric motors, where permanent magnets are used, the conductor moves in a magnetic field, forming an oppositely directed force, which, in turn, reduces the current strength. To increase the latter, it is necessary to reduce the field of the permanent magnet, which requires additional energy, reducing the overall efficiency of such an engine.

In the Russian development, as mentioned above, a magnetic field is created by a coil through which current flows. The latter can be controlled by reducing voltage during acceleration and increasing for greater power without loss of efficiency.

In addition, this unit does not need complex cooling systems. It does not have permanent magnets that tend to demagnetize when overheating (reaching the Curie point) and drastically reduce engine power. Tests conducted by Russian engineers showed that the foreign analogue (with permanent magnets) ceases to function even at 100 ° C, while the domestic motor continues to work when heated at 150 °.

It is worth noting that innovation can find commercial application in the near future. The developer plans to launch production of unmanned trucks equipped with similar engines. Several of these machines are currently being tested by foreign companies.

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Ygm

-1

20 June 2019 13: 13

The development is really good.

But here the author’s level of knowledge of Physics is extremely low, which is only worth the phrase:

In most modern synchronous electric motors where permanent magnets are used, the conductor is displaced in a magnetic field, forming an oppositely directed force, which, in turn, reduces the current strength.

To laugh or cry ?!
1. Achilles86
  
  +1
  
  20 June 2019 13: 43
  
  Google the concept of back EMF. And there, decide for yourself, "laugh or cry"
  1. A.Lex
    
    +1
    
    21 June 2019 16: 16
    
    Vasily, the article is certainly interesting, BUT ... As always, our people are talented, but bureaucrats who should push such inventions at the state level, because of their inferiority (the main thing is that they understand that they are flawed and cannot create anything of the kind !) SPECIALLY hindered, hinder and will hinder the development of technologies in Russia. And it doesn't matter what kind of system we have - socialism or capitalism. The main thing is different - the "brakes" (heated, moreover, because of a puddle of 30 pieces of silver) are ALWAYS above talented people. And they are on the side that Russia will lag behind in technology and, as a result, will be (due to its backwardness) DESTROYED by more technological enemies who don’t regret any development and IMPLEMENT what has been confirmed and become successful.
2. Ivan Ivanov_16
  
  -2
  
  21 June 2019 15: 35
  
  just laugh ...
3. The comment was deleted.
4. Boris Boris_2
  
  0
  
  25 June 2019 15: 20
  
  Brakes are better for charging
candidate

+1

20 June 2019 20: 27

Strength is a product of the interaction of fields. Fields are created, and the force arises as a reaction of space to the appearance of a gradient of energy of interaction between fields. Privo-emf - compensating effect in order to eliminate the interaction energy.
Sergey Latyshev

0

20 June 2019 23: 50

Another breakthrough engine .... like many others ...

And the real engine, for example, is made by the French for the Superjet, and the service life in the media is 2-3 times less ....
2cool

0

21 June 2019 07: 13

To Russian engineers from the company ... Congratulations to future American citizens
Galar

-2

21 June 2019 08: 33

Why did they create it? After all, there is no money, but are you holding on? This Russia does not need it.
Elephant

+4

21 June 2019 10: 54

For Gazprom and Rosneft, this is not at all interesting or even harmful, a clear threat of loss of profit ... And if without malice, then Presidential and government support for such innovations is very necessary. It may already be enough to feed the banks, and send the budget surplus to high-tech production, as was recently done in Japan.
dipal

0

21 June 2019 16: 03

They just forgot to say that double coils consume 2 times more energy
Dzafdet

0

22 June 2019 06: 12

Quote: YGM
The development is really good.

But here the author’s level of knowledge of Physics is extremely low, which is only worth the phrase:

In most modern synchronous electric motors where permanent magnets are used, the conductor is displaced in a magnetic field, forming an oppositely directed force, which, in turn, reduces the current strength.

To laugh or cry ?!

For a long time, my late friend also sarcastically laughed when I incorrectly called the compensation winding in DPT .. I had to urgently learn the terminology ..
Ygm

0

22 June 2019 13: 03

The thing is that the author of CAM invented the concept of this engine.
And he had to give the floor to the inventors.
So it turned out either a game of "spoiled phone" or "cheating a dumbass".
candidate

+1

28 June 2019 20: 57

Is the development unique, but is it breakthrough? They added an additional winding in order to reduce the effect of counter-emfs at high speeds, but the engine did not change its essence - a synchronous machine. It is unlikely that this is a breakthrough technology, there is no innovation. A breakthrough is still possible, and there are prerequisites for this - they are embedded in Maxwell's equations, although in a different form of representation, expanded. The rejection of the traditional manufacturing technology, along with the use of an integrated control system, will really make a breakthrough and create a new generation of electric motors that combine the best properties of synchronous and asynchronous machines. This promises ease of control combined with compactness and low noise and interference, which makes this class of electric motors indispensable in electric propulsion systems for all elements. To confirm or refute this, experimental research is needed, as the devil says in detail. So the thing is small - to begin.
av58

0

3 July 2019 21: 51

Tesla is now kapets