Harmonic Variations in Three-phase Induction Motors Fed by PWM Inverter with Different Stator Coil Pitches
نویسنده
چکیده
A sinusoidal pulse-width modulation (SPWM) inverter feeding five different chorded three-phase induction motors were tested for low-order odd harmonic voltage component and efficiency at different loads. Total harmonic distortion (THD) due to 3rd, 5th, 9th, 11th and 13th harmonics were less in a motor with (1-7) 120 coil pitch. Particular harmonic order for each coil pitch was suppressed and the increasing quantity of efficiency in a motor with (1-6)100 coil pitch was increased by 4,92 %. The full pitch motor with (1-10) 180 coil pitch has more harmonics than other motors.
منابع مشابه
A Novel Stand-Alone Single-Phase Induction Generator Using a Three-Phase Machine and a Single-Phase PWM Inverter
A new type of single-phase stand-alone induction generator using a three-phase induction machine and a single-phase voltage-source PWM inverter is introduced. The generator scheme is capable of producing constant load frequency with a very well regulated output voltage. A small lead acid battery and a single-phase full diode-bridge rectifier are used to feed the inverter. The inverter feeds one...
متن کاملPerformance Analysis of Three Phase PWM Voltage Source Inverter Fed Three Phase Induction Motor Drive
This paper deals with the performance analysis of three phase induction motor drive fed by a PWM voltage source inverter. The PWM method, which involves the modulation of conventional sinusoidal reference signal and a triangular carrier is used here to produce pulse width modulated output only for under modulation index. This paper work deals mainly with the performance analysis of three phase ...
متن کاملWireless Sensor Network System for Measuring the Magnetic Noise of Inverter-Fed Three-Phase Induction Motors with Squirrel-Cage Rotor
The object of this paper is the study of the noise produced by inverter-fed three-phase induction motors with squirrel-cage rotor. A wireless sensor network based measurement system is proposed, which gives the possibility of measuring the sound pressure virtually simultaneously in multiple points around the motor. In the case of inverter fed motors, the phenomena that lead to the production of...
متن کاملSensorless Model Predictive Force Control with a Novel Weight Coefficients for 3-Phase 4-Switch Inverter Fed Linear Induction Motor Drives
The sensorless model predictive force control (SMPFC) is a strong method for controlling the drives of three-phase 4(6)-switch inverter linear induction motors. This kind of inverter can be employed for fault tolerant control in order to solve the problem of open/short circuit in 6-switch inverters (B6). This paper proposed a method for the SMPFC of a linear induction motor (LIM) with a 4-switc...
متن کاملTHD Reduction in Performance of Cascaded Multi-Level Inverter Fed Induction Motor Drive
The multilevel inverter power structure plays a vital role in the power industry. It is easier to produce a high-power, high-voltage inverter with the multilevel structure. The topologies of multilevel inverter have several advantages such as lower total harmonic distortion (THD), lower electromagnetic interference (EMI) generation, reduction of voltage ratings of the power semiconductor switch...
متن کامل