What type of electric motor is beter?

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SUMMARY

The discussion centers on the search for compact and powerful electric motors, specifically in the 70 kW range, suitable for applications like electric vehicles. Participants highlight the efficiency and cost-effectiveness of existing electric motors, with the Toyota Prius utilizing a synchronous AC motor operating at over 500 V. There is a clear interest in developing smaller motors that can operate at lower voltages while handling higher currents, which would enhance safety and usability in electric vehicles. The potential for stepper motors or similar technologies is also considered in this context.

PREREQUISITES
  • Understanding of electric motor types, specifically synchronous AC motors
  • Knowledge of voltage and current relationships in electric motor applications
  • Familiarity with electric vehicle technology and its requirements
  • Basic concepts of motor efficiency and cost analysis
NEXT STEPS
  • Research advancements in compact synchronous AC motors for electric vehicles
  • Explore the development of low-voltage, high-current electric motors
  • Investigate the role of stepper motors in automotive applications
  • Learn about safety standards and licensing for high-voltage hybrid systems
USEFUL FOR

Automotive engineers, electric vehicle developers, and anyone involved in the design and optimization of electric motor systems.

Stanley514
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What type of electric motor is most compact and powerfull for its size (in 70 kW range)?
Is there some hope that very powerful, compact, cheap, low voltage DC motor will be ever created?
 
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I'm not sure what you're asking. Electric motors really aren't that expensive and are very efficient. Typically, physical size is not a very important consideration. What is the application?
 
Low voltage @70kW? What about the current?
 
What is the application?
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Electric vehicles suppose to have very compact and powerful motors for their size and be cheap because there is expansive battery and inventer yet.To work on high-voltage hybrid you need to have special license and bulky equipment.Currently Toyota Prius uses regulary
synchronous AC motor.Voltage is over 500 V.Is there some motors in development which could be even smaller then present AC motors and which could use lower voltage at higher current?It will make electric car safer and easier to handle.Maybe stepper motor or something similar?
 

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