Due to the simple structure, high torque density, low maintenance, and high efficiency, brushless direct current (BLDC) motors are widely used in automation and industrial applications. A control strategy based on single current sensor is proposed for a four-switch three-phase BLDC motor system to lower cost and improve reliability. The whole working process of the BLDC motor is divided into si...

This paper presents an original study on the generated torque ripples of phase commutation in the Four-Switch, Three-Phase Inverter (FSTPI) Brushless DC (BLDC) motor drive which is suitable for low cost applications. Analytic values of torque ripple and commutation duration are obtained for different operation conditions. Moreover, limitation on the speed range operation caused from splitti...

In this paper author discussed PI and fuzzy controllers with the three phase inverter concept and this converter connected to induction motor drive as load. This presents a unified control strategy that enables both islanded and grid-tied operations of three-phase inverter in distributed generation, with no need for switching between two corresponding controllers or critical islanding detection...

Semiconductor power modules are the key hardware components of a traction inverter. It drives motor speed and torque, managing energy exchange from battery to viceversa. The increasing demand for electric hybrid vehicle requests high performance modules. Power semiconductor devices based on wide band gap compound, like silicon carbide (SiC), have excellent electrical properties in terms on-stat...

Wavelet Modulus Maxima for Single Switch Open Fault in Multi-level Inverter Rashmi A. Keswani, Hiralal M. Suryawanshi & Mohan M. Renge a Department of Electrical Engineering, Priyadarshini College of Engineering, Nagpur, Maharashtra, India b Department of Electrical Engineering, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra, India c Department of Electrical Engineering, Shr...

* The Black Magic Telephone Ringing Generator: a miniaturized, pcb-mounting switch-mode inverter generating power to ring a telephone bell from a d.c. source (5, 12, 24 or 48 V). Devices in this family are available with both sineand square-wave outputs with a variety of power levels and package sizes to suit every application. Please view the product range and datasheets at <www.camblab.com/oe...

This paper presents a novel 13-level switched capacitor multilevel inverter, which uses less devices to achieve six-fold voltage gain. The proposed topology structure consists of twelve transistors, two diodes, and three capacitors. It is worth mentioning that characteristics as having five complementary switch pairs self-balanced electric capacity voltages are conducive simplifying the control...

The conventional DC-link type quasi-Z-source inverter has been known as a buck–boost with low component voltage rating. This paper proposes an active by adding one switch and diode to the impedance-source network enhance gain of inverter. As result, rating is significantly reduced, which demonstrated through some comparisons between proposed topology others. A discontinuous pulse width modulati...

Transformerless inverters are high efficiency inverters featuring high efficiency and lower size and weight. In this paper a topology based on H-bridge with ac decoupling scheme consisting of diode bridge and a switch with clamping to the DC midpoint is implemented. A 16V prototype of HB-ZVR inverter has been implemented in hardware using open loop control. The control pulses were generated usi...

The objective is to develop a fault diagnose scheme for MOSFET’s open switch faults for PWM voltage source inverter (PWM-VSI) motor drives. Here system monitors line to line voltage as well as switching signals nevertheless the triggering time of MOSFET, under both healthy and faulty conditions. So the measurement of line to line voltage is taken which gives the information about switching stat...