Adjustable Speed AC Drive (ASD) manufacturer’s recently migrated from Bipolar Junction Transistor (BJT) semiconductors to Insulated Gate Bipolar Transistors (IGBTs) as the preferred output switching device. The advantage of IGBTs is that device rise / fall time switching capability is 510 times faster, resulting in lower device switching losses, a more efficient and smaller drive package. Howev...

This paper presents real-time digital simulator enabled hardware-in-the-loop (HIL) electrical machine drive lab setup for educational purposes. The objective of this work is to create a platform for laboratory experiments to enhance drive control design and testing. In the proposed setup, an OPAL-RT real-time digital simulator (RT-LAB) is used to implement the desired control schemes for AC and...

In this paper, computer simulation of a three-phase synchronous motor drive is described. This drive/system is supplied with a new type of pulse-width modulated voltage source inverter (PWM VSI) whose amplitude of the first harmonic, compared to a conventional sinusoidal PWM VSI, is increased by about 17% and whose amplitude of higher harmonics is also reduced inversely proportional to their or...

In this manuscript, the single stage boost inverter is proposed to eliminate common-mode voltage (CMV) and electromagnetic interference (EMI) in motor drives. The topology has capability of eliminating effects intrinsic CMV without any additional filters, active or passive elements, modified pulse width modulated (PWM) techniques. This with rearrangement filter components from ac side mid place...

In this paper, computer simulation of a three-phase synchronous motor drive is described. This drive/system is supplied with a new type of pulse-width modulated voltage source inverter (PWM VSI) whose amplitude of the first harmonic, compared to a conventional sinusoidal PWM VSI, is increased by about 17% and whose amplitude of higher harmonics is also reduced inversely proportional to their or...

Voltage and current source inverter are widely used in electrical motor drives. In this drives, DC voltage (or current) are usually provided from phase control or line commutation rectifiers. Because of disadvantage & limitation of this converter, some new topologies are presented in advanced drive such as PWM rectifier. Thanks to well known capabilities of PWM rectifier, classical converter’s ...

High-frequency ac link conversion offers a possible way to produce reduced-cost inverters for low-voltage dc sources such as fuel cells. The control complexity can be addressed by adapting pulse-width modulation (PWM) techniques. Here, a multi-carrier pulse-width modulation (PWM) approach is introduced as a convenient way to implement a high-frequency link inverter. The approach is a direct ext...

The multilevel inverter (MLI) has been developed as a powerful power conversion scheme for several processes, including renewable energy, transmission systems, and electric drives. It become popular across medium- to high-power operations due its many advantages, minimum harmonic content, low switching losses, reduced electromagnetic interference (EMI). In this paper, the capacitor voltage bala...

The multifunctional converter system (MFCS) is a special topology of three-phase ac motor drives, which inherently integrates dc-voltage regulation function. First, in order to explain the mechanism MFCS, an average model derived this article. An equivalent circuit developed, explicitly reveals that MFCS cascaded dc/dc converter-dc drive system. Second, inverter's mean duty cycle identified as ...