Analysis of Universal Motors: Definition, Types, and Applications

This report provides a comprehensive overview of universal motors, defining them as electrical motors capable of operating on both DC and AC current, often referred to as AC series motors. It details the types of universal motors, including shunt winding and repulsion-start variations, and outlines their key characteristics such as efficiency, torque-speed behavior, adjustability, and reliability. The report also addresses the disadvantages of universal motors, including speed control challenges and shunt winding limitations. Furthermore, it highlights the diverse applications of universal motors in domestic appliances, rail traction, and starter motors. The report concludes by referencing relevant bibliography entries, emphasizing performance evaluation, harmonic analysis, and dynamic operating behavior of universal motors.

UNIVERSAL MOTOR

Definition
A universal motor can be considered as a type of electrical motor that
can operate either on DC or AC current.
The universal motor is often referred to as AC series motor.

Types of Universal motor
 Equivalent circuit
 Low cost universal low cost motor
 Universal motors field coil which are series with the wound of the
motor commutate and coils.

characteristics of Universal motor
 Efficiency
 Torque speed characteristics
 Adjustable
 reliable

Disadvanatage of Universal motor
 Speed control
 Shunt winding
 Repulsion-start

Application of Universal motor
 Domestic appliances
 Rail traction
 Starter motor

Variation of Universal motor
 Shunt winding: First type of universal motor.
 Repulsion-start: Modernised universal motor.

Bibliography
 Sathiyanarayanan, K., Natarajan, S. P., Uthayakumar, R. J., & Pandiarajan, P. S. (2016).
Performance Evaluation of various PWM strategies of Trinary DC source Multilevel
Inverter fed Universal Motor Load. International Journal of Applied Engineering
Research, 11(5), 2961-2968.
 SOLANGI, A., SAHITO, A., SOOMRO, S., KHATRI, S., & MEMON, M. (2016). Harmonic
Analysis of Universal Motor Supplied by Single Phase PWM Inverter-Fed Drive. Sindh
University Research Journal-SURJ (Science Series), 48(4).
 Khan Burdi, M., Uqaili, M. A., & Memon, M. R. (2015). Steady state dynamic operating
behavior of universal motor. Mehran University Research Journal Of Engineering &
Technology, 34(1), 1.