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Why the induction motor could be the better choice for your electric vehicle program?

Posted on September 1, 2022 by Author

Why the induction motor could be the better choice for your electric vehicle program?

Low weight and high power density is a main focus in electro mobility. Therefore it can be the better choice for electro mobility.

What is the difference between induction motor and normal motor?

The fundamental difference between these two motors is that the speed of the rotor relative to the speed of the stator is equal for synchronous motors, while the rotor speed in induction motors is less than its synchronous speed. This is why induction motors are also known as asynchronous motors.

What is the main problem in using induction motor for electric vehicle?

This results in torque. The motor shaft rotates. Induction Motors induce the magnetic field within the rotor by implanting a short current in the squirrel cage. This concept effects higher losses in the rotor and causes higher heat and less efficiency.

What are all the advantages of induction motor over other motors?

Induction Motor Advantages: Induction motors are simple and rugged in construction. Induction motors are cheaper in cost due to the absence of brushes, commutators, and slip rings. They are maintenance free motors unlike dc motors and synchronous motors due to the absence of brushes, commutators and slip rings.

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Are induction motors efficient?

Efficiency of three-phase induction motors can vary from 85\% to 96\%. See the chart below for torque vs. slip. Induction motors of 50-100 HP for industrial applications vary in weight from 700 to almost 1,000 lbs.

Why is induction motor so popular?

Three-phase squirrel-cage induction motors are widely used as industrial drives because they are self-starting, reliable and economical. Although traditionally used in fixed-speed service, induction motors are increasingly being used with variable-frequency drives (VFD) in variable-speed service.

Why does an induction motor never run on synchronous speed?

An induction motor always runs at a speed less than synchronous speed because the rotating magnetic field which is produced in the stator will generate flux in the rotor which will make the rotor to rotate, but due to the lagging of flux current in the rotor with flux current in the stator, the rotor will never reach . …

Which has more efficiency synchronous or induction motor?

The power factor of a synchronous motor can be adjusted to lagging, unity or leading by varying the excitation, whereas, an induction motor always runs at lagging power factor. Synchronous motors are generally more efficient than induction motors.

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Are induction motors more powerful?

The inherent efficiency of a permanent magnet motor is higher than an induction motor. Induction motors, however, were designed to work primarily at 60 Hz. As you increase the frequency, eddy current losses in induction motors will be far greater than in permanent magnet motors using powder metal technology.

Why are induction motors the most common?

Slip ring motors require external resistors to have high starting torque. Induction motors are used in industrial and domestic appliances because these are rugged in construction requiring hardly any maintenance, that they are comparatively cheap, and require supply only to the stator.

Are induction motors more efficient?

As you increase the frequency, eddy current losses in induction motors will be far greater than in permanent magnet motors using powder metal technology. Regardless of how you bend or shape an induction motor, a well-designed, synchronous permanent magnet motor will offer increased range, better performance, and so on.

What are the advantages and disadvantages of linear induction motor as compared to the rotary induction motor?

Advantages and Disadvantages of Linear Induction Motor Low maintenance cost due to the absence of rotating parts. No limitation of maximum speed due to centrifugal forces. No overheating of the rotor. Batter power to weight ratio.

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What are the advantages of induction motors in electric vehicles?

Induction motors are the preferred choice for performance oriented electric vehicles due to its cheap cost. The other advantage is that it can withstand rugged environmental conditions. Due to these advantages, the Indian railways has started replacing its DC motors with AC induction motors. 5.

Is an electric car heavier than an ice car?

A little heavier – but not drastically so. EV batteries are heavy, but EV motors and transmissions are light (compared to the ICE equivalents) and there is no exhaust system, and less cooling system.

Do magnets affect the performance of electric vehicles?

“Typically, most of the manufacturers use synchronous motors, but whether it is a permanent magnet or electromagnet strongly influences the performance,” said Viswanathan.

How do manufacturers make electric cars more affordable?

Other times, the manufacturer will focus on ways of reducing the costs of the motor in order to make EVs more affordable. Heraldo Stefanon, a senior engineering manager at Toyota’s Technical Center in Ann Arbor, Michigan, says the company mostly manufactures its motors in Japan, with an eye toward streamlining manufacturing in mind.

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